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IPv6 Configuration Guide, Cisco IOSRelease 15.2MT
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Any Internet Protocol (IP) addresses and phone numbers used in this document are not intended to be actual addresses and phone numbers. Any examples, command display output,network topology diagrams, and other figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses or phone numbers in illustrative contentis unintentional and coincidental.
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C O N T E N T S
Start Here: Cisco IOS Software Release Specifics for IPv6 Features 1
Finding Feature Information 1
Cisco IOS Software Platform Dependencies and Restrictions 1
Cisco IOS IPv6 Features and Supported Software Releases 2
Cisco Platforms Supporting IPv6 Hardware Forwarding 27
Supported Platforms 27
Additional 12.2S Release Trains 29
Additional References 30
Implementing IPv6 Addressing and Basic Connectivity 39
Finding Feature Information 39
Prerequisites for Implementing IPv6 Addressing and Basic Connectivity 39
Restrictions for Implementing IPv6 Addressing and Basic Connectivity 40
Information About Implementing IPv6 Addressing and Basic Connectivity 40
IPv6 for Cisco Software 41
Large IPv6 Address Space for Unique Addresses 41
IPv6 Address Formats 42
IPv6 Address Type: Unicast 43
Aggregatable Global Address 43
Link-Local Address 44
IPv4-Compatible IPv6 Address 45
Unique Local Address 45
Site-Local Address 46
IPv6 Address Type: Anycast 46
IPv6 Address Type Multicast 46
IPv6 Multicast Groups 48
IPv6 Address Output Display 48
Simplified IPv6 Packet Header 49
Cisco Express Forwarding and Distributed Cisco Express Forwarding Switching for IPv6 52
Unicast Reverse Path Forwarding 53
IPv6 Configuration Guide, Cisco IOS Release 15.2MT iii
DNS for IPv6 54
Path MTU Discovery for IPv6 54
Cisco Discovery Protocol IPv6 Address Support 55
ICMP for IPv6 55
IPv6 ICMP Rate Limiting 55
IPv6 Neighbor Discovery 56
Stateful Switchover 56
IPv6 Neighbor Solicitation Message 56
Enhanced IPv6 Neighbor Discovery Cache Management 58
IPv6 Router Advertisement Message 59
Default Router Preferences for Traffic Engineering 60
IPv6 Neighbor Redirect Message 60
Per-Interface Neighbor Discovery Cache Limit 62
Link, Subnet, and Site Addressing Changes 62
IPv6 Stateless Autoconfiguration 62
Simplified Network Renumbering for IPv6 Hosts 62
IPv6 General Prefixes 63
DHCP for IPv6 Prefix Delegation 63
IPv6 Prefix Aggregation 64
IPv6 Site Multihoming 64
IPv6 Data Links 64
IPv6 for Cisco Software Support for Wide-Area Networking Technologies 65
IPv6 Addresses and PVCs 65
Routed Bridge Encapsulation for IPv6 65
IPv6 Redirect Messages 65
IPv6 on BVI Interfaces for Bridging and Routing 66
Dual IPv4 and IPv6 Protocol Stacks 66
How to Implement IPv6 Addressing and Basic Connectivity 67
Configuring IPv6 Addressing and Enabling IPv6 Routing 68
Configuring a Neighbor Discovery Cache Limit 69
Configuring a Neighbor Discovery Cache Limit on a Specified Router Interface 70
Configuring a Neighbor Discovery Cache Limit on All Device Interfaces 70
Customizing the Parameters for IPv6 Neighbor Discovery 71
Defining and Using IPv6 General Prefixes 72
Defining a General Prefix Manually 73
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MTiv
Defining a General Prefix Based on a 6to4 Interface 73
Defining a General Prefix with the DHCP for IPv6 Prefix Delegation Client Function 74
Using a General Prefix in IPv6 74
Configuring an Interface to Support the IPv4 and IPv6 Protocol Stacks 75
Customizing IPv6 ICMP Rate Limiting 76
Configuring the DRP Extension for Traffic Engineering 77
Configuring Cisco Express Forwarding and Distributed Cisco Express Forwarding Switching
for IPv6 78
Configuring Cisco Express Forwarding Switching on Distributed and Nondistributed
Architecture Platforms 78
Configuring Unicast RPF 81
Mapping Hostnames to IPv6 Addresses 83
Mapping IPv6 Addresses to IPv6 ATM and Frame Relay Interfaces 84
Displaying IPv6 Redirect Messages 87
Examples 89
Configuration Examples for Implementing IPv6 Addressing and Basic Connectivity 92
Example: IPv6 Addressing and IPv6 Routing Configuration 92
Example: Customizing the Parameters for IPv6 Neighbor Discovery 93
Example: Dual-Protocol Stack Configuration 93
Example: IPv6 ICMP Rate Limiting Configuration 94
Example: Cisco Express Forwarding and Distributed Cisco Express Forwarding Configuration 94
Example: Hostname-to-Address Mappings Configuration 94
Examples: IPv6 Address to ATM and Frame Relay PVC Mapping Configuration 95
Example: IPv6 ATM PVC Mapping Configuration (Point-to-Point Interface) 95
Example: IPv6 ATM PVC Mapping Configuration (Point-to-Multipoint Interface) 95
Example: IPv6 Frame Relay PVC Mapping Configuration (Point-to-Point Interface) 96
Example: IPv6 Frame Relay PVC Mapping Configuration (Point-to-Multipoint Interface) 97
Additional References 97
Feature Information for Implementing IPv6 Addressing and Basic Connectivity 100
Implementing ADSL and Deploying Dial Access for IPv6 111
Finding Feature Information 111
Restrictions for Implementing ADSL and Deploying Dial Access for IPv6 111
Information About Implementing ADSL and Deploying Dial Access for IPv6 111
Address Assignment for IPv6 112
Stateless Address Autoconfiguration 112
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MT v
Prefix Delegation 112
DHCP SIP Server Options 113
AAA over IPv6 113
RADIUS over IPv6 113
RADIUS Per-User Attributes for Virtual Access in IPv6 Environments 113
TACACS+ Over an IPv6 Transport 115
IPv6 Prefix Pools 115
How to Configure ADSL and Deploy Dial Access in IPv6 115
Configuring the NAS 115
Configuring the Remote CE Router 119
Configuring the DHCPv6 Server to Obtain Prefixes from RADIUS Servers 121
Configuring DHCPv6 AAA and SIP Options 122
Configuring TACACS+ over IPv6 123
Configuring the TACACS+ Server over IPv6 124
Specifying the Source Address in TACACS+ Packets 125
Configuring TACACS+ Server Group Options 126
Configuration Examples for Implementing ADSL and Deploying Dial Access for IPv6 127
Example Implementing ADSL and Deploying Dial Access for IPv6 127
Additional References 128
Feature Information for Implementing ADSL and Deploying Dial Access for IPv6 130
Implementing Bidirectional Forwarding Detection for IPv6 133
Finding Feature Information 133
Prerequisites for Implementing Bidirectional Forwarding Detection for IPv6 133
Restrictions for Implementing Bidirectional Forwarding Detection for IPv6 134
Information About Implementing Bidirectional Forwarding Detection for IPv6 134
Overview of the BFDv6 Protocol 134
BFDv6 Registration 134
BFDv6 Global and Link-Local Addresses 134
BFD for IPv4 and IPv6 on the Same Interface 135
Static Route Support for BFD over IPv6 135
BFDv6 Associated Mode 135
BFDv6 Unassociated Mode 136
BFD Support for OSPFv3 136
How to Configure Bidirectional Forwarding Detection for IPv6 136
Specifying a Static BFDv6 Neighbor 136
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MTvi
Associating an IPv6 Static Route with a BFDv6 Neighbor 137
Configuring BFD Support for OSPFv3 138
Configuring Baseline BFD Session Parameters on the Interface 139
Configuring BFD Support for OSPFv3 for All Interfaces 140
Configuring BFDv6 Support for OSPFv3 on One or More OSPFv3 Interfaces 141
Retrieving BFDv6 Information for Monitoring and Troubleshooting 143
Configuration Examples for Bidirectional Forwarding Detection for IPv6 144
Example: Specifying an IPv6 Static BFDv6 Neighbor 144
Example: Associating an IPv6 Static Route with a BFDv6 Neighbor 144
Example: Displaying OSPF Interface Information about BFD 144
Additional References 144
Feature Information for Implementing Bidirectional Forwarding Detection for IPv6 146
Implementing DHCP for IPv6 149
Finding Feature Information 149
Restrictions for Implementing DHCP for IPv6 149
Information About Implementing DHCP for IPv6 149
DHCPv6 Prefix Delegation 150
Configuring Nodes Without Prefix Delegation 150
Client and Server Identification 150
Rapid Commit 150
DHCPv6 Client, Server, and Relay Functions 151
Client Function 151
Server Function 151
DHCPv6 Relay Agent 155
DHCPv6 Relay Source Configuration 155
DHCPv6 Relay SSO and ISSU 155
DHCPv6 Server and RelayMPLS VPN Support 156
How to Implement DHCP for IPv6 156
Configuring the DHCPv6 Server Function 157
Configuring the DHCPv6 Configuration Pool 157
Configuring a Binding Database Agent for the Server Function 159
Configuring the DHCPv6 Client Function 160
Configuring the DHCPv6 Relay Agent 161
Configuring Route Addition for Relay/Server 162
Configuring a DHCPv6 Relay Source 162
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MT vii
Restrictions for Configuring a DHCPv6 Relay Source 162
Configuring a DHCPv6 Relay Source on an Interface 162
Configuring a DHCPv6 Relay Source Globally 163
Configuring DHCPv6 Bulk-Lease Query Parameters 164
Configuring DHCPv6 Address Assignment 165
Prerequisites for Configuring DHCPv6 Address Assignment 165
Enabling the DHCPv6 Server Function on an Interface 165
Enabling the DHCPv6 Client Function on an Interface 168
Configuring the Stateless DHCPv6 Function 170
Configuring the Stateless DHCPv6 Server 170
Configuring the Stateless DHCPv6 Client 172
Enabling Processing of Packets with Source Routing Header Options 173
Configuring the DHCPv6 Server Options 174
Configuring the Information Refresh Server Option 174
Importing the Information Refresh Server Option 175
Configuring NIS- and NISP-Related Server Options 176
Importing NIS- and NIS+-Related Server Options 178
Importing SIP Server Options 179
Configuring the SNTP Server 180
Importing the SNTP Server Option 181
Importing Stateless DHCPv6 Server Options 182
Defining a General Prefix with the DHCPv6 Prefix Delegation Client Function 184
Configuring a VRF-Aware Relay and Server for MPLS VPN Support 185
Configuring a VRF-Aware Relay 185
Configuring a VRF-Aware Server 186
Deleting Automatic Client Bindings from the DHCPv6 Binding Table 187
Troubleshooting DHCPv6 188
Verifying DHCPv6 Configuration and Operation 189
Examples 190
Configuration Examples for Implementing DHCPv6 192
Example: Configuring the DHCPv6 Server Function 193
Example: Configuring the DHCPv6 Client Function 194
Example: Configuring a Database Agent for the Server Function 194
Example: Configuring DHCP for IPv6 Address Assignment 194
Example: Configuring the Stateless DHCPv6 Function 195
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MTviii
Additional References 195
Feature Information for Implementing DHCP for IPv6 197
Implementing Dynamic Multipoint VPN for IPv6 201
Finding Feature Information 201
Prerequisites for Implementing DMVPN for IPv6 202
Restrictions for Implementing DMVPN for IPv6 202
Information About Implementing DMVPN for IPv6 202
DMVPN for IPv6 Overview 202
NHRP Routing 203
IPv6 NHRP Redirect and Shortcut Features 204
IPv6 Routing 204
IPv6 Addressing and Restrictions 204
mGRE Support over IPv6 204
How to Configure DMVPN for IPv6 205
Configuring an IPsec Profile in DMVPN for IPv6 205
Configuring the Hub for IPv6 over DMVPN 207
Configuring the NHRP Redirect and Shortcut Features on the Hub 210
Configuring the Spoke for IPv6 over DMVPN 211
Verifying DMVPN for IPv6 Configuration 216
Examples 218
Monitoring and Maintaining DMVPN for IPv6 Configuration and Operation 221
Configuration Examples for Implementing DMVPN for IPv6 222
Example: Configuring an IPsec Profile 222
Example: Configuring the Hub for DMVPN 223
Example: Configuring the NHRP Redirect and Shortcut Features on the Hub 224
Example: Configuring the Spoke for DMVPN 224
Additional References 225
Feature Information for Implementing DMVPN for IPv6 227
Implementing EIGRP for IPv6 229
Finding Feature Information 229
Restrictions for Implementing EIGRP for IPv6 229
Information About Implementing EIGRP for IPv6 230
Cisco EIGRP for IPv6 Implementation 230
How to Implement EIGRP for IPv6 231
Enabling EIGRP for IPv6 on an Interface 232
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MT ix
Configuring the Percentage of Link Bandwidth Used by EIGRP 234
Configuring Summary Addresses 235
Configuring EIGRP Route Authentication 236
Overriding the Next Hop in EIGRP 239
Adjusting the Interval Between Hello Packets in EIGRP for IPv6 240
Adjusting the Hold Time in EIGRP for IPv6 241
Disabling Split Horizon in EIGRP for IPv6 242
Configuring EIGRP Stub Routing for Greater Network Stability 243
Configuring a Device for EIGRP Stub Routing 244
Verifying EIGRP Stub Routing 245
Customizing an EIGRP for IPv6 Routing Process 245
Logging EIGRP Neighbor Adjacency Changes 245
Configuring Intervals Between Neighbor Warnings 246
Adjusting EIGRP for IPv6 Metric Weights 247
Deleting Entries from EIGRP for IPv6 Routing Tables 248
Configuration Examples for Implementing EIGRP for IPv6 249
Example: Configuring EIGRP to Establish Adjacencies on an Interface 249
Additional References 249
Feature Information for Implementing EIGRP for IPv6 250
Configuring First Hop Redundancy Protocols in IPv6 253
Finding Feature Information 253
Prerequisites for First Hop Redundancy Protocols in IPv6 253
Information About First Hop Redundancy Protocols in IPv6 254
GLBP for IPv6 254
GLBP for IPv6 Overview 254
GLBP Benefits 254
Load Sharing 254
Multiple Virtual Routers 255
Preemption 255
Authentication 255
GLBP Active Virtual Gateway 255
GLBP Virtual MAC Address Assignment 256
GLBP Virtual Gateway Redundancy 256
GLBP Virtual Forwarder Redundancy 257
GLBP Gateway Priority 257
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MTx
GLBP Gateway Weighting and Tracking 257
HSRP for IPv6 258
HSRP for IPv6 Overview 258
HSRP IPv6 Virtual MAC Address Range 258
HSRP IPv6 UDP Port Number 258
HSRP Global IPv6 Address 259
How to Configure First Hop Redundancy Protocols in IPv6 260
Configuring and Customizing GLBP 260
Customizing GLBP 260
Configuring GLBP Authentication 262
Configuring GLBP MD5 Authentication Using a Key String 263
Configuring GLBP MD5 Authentication Using a Key Chain 264
Configuring GLBP Text Authentication 267
Configuring GLBP Weighting Values and Object Tracking 269
Enabling and Verifying GLBP 271
Troubleshooting GLBP 272
Enabling an HSRP Group for IPv6 Operation 274
Enabling HSRP Version 2 274
Enabling and Verifying an HSRP Group for IPv6 Operation 275
Configuration Examples for First Hop Redundancy Protocols in IPv6 277
Example: Customizing GLBP Configuration 278
Example GLBP MD5 Authentication Using Key Strings 278
Example GLBP MD5 Authentication Using Key Chains 278
Example GLBP Text Authentication 278
Example: GLBP Weighting 278
Example: Enabling GLBP Configuration 279
Example Enabling and Verifying an HSRP Group for IPv6 Operation 279
Example: Configuration and Verification for an HSRP Group 279
Example: Configuring HSRP Global IPv6 Addresses 280
Additional References 281
Feature Information for First Hop Redundancy Protocols in IPv6 282
Glossary 283
Implementing First Hop Security in IPv6 285
Finding Feature Information 285
Prerequisites for Implementing First Hop Security in IPv6 286
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MT xi
Restrictions for Implementing First Hop Security in IPv6 286
Information About Implementing First Hop Security in IPv6 286
IPv6 First-Hop Security Binding Table 287
IPv6 Device Tracking 287
IPv6 Port-Based Access List Support 287
IPv6 Global Policies 287
IPv6 RA Guard 287
IPv6 ND Inspection 287
Secure Neighbor Discovery in IPv6 288
IPv6 Neighbor Discovery Trust Models and Threats 288
SeND Protocol 288
Cryptographically Generated Addresses in SeND 288
Authorization Delegation Discovery 289
SeND Deployment Models 289
Host-to-Host Deployment Without a Trust Anchor 289
Neighbor Solicitation Flow 289
Host-Router Deployment Model 290
Router Advertisement and Certificate Path Flows 291
Single CA Model 292
How to Implement First Hop Security in IPv6 293
Configuring the IPv6 Binding Table Content 293
Configuring IPv6 Device Tracking 294
Configuring IPv6 ND Inspection 295
Configuring IPv6 ND Inspection Globally 295
Applying IPv6 ND Inspection on a Specified Interface 297
Verifying and Troubleshooting IPv6 ND Inspection 298
Configuring IPv6 RA Guard 299
Configuring the IPv6 RA Guard on a Specified Interface 299
Configuring IPv6 RA Guard in Cisco IOS Release 12.2(33)SXI4 and 12.2(54)SG 300
Verifying and Troubleshooting IPv6 RA Guard 301
Configuring SeND for IPv6 302
Configuring Certificate Servers to Enable SeND 303
Configuring a Host to Enable SeND 305
Configuring a Router to Enable SeND 308
Implementing IPv6 SeND 312
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MTxii
Creating the RSA Key Pair and CGA Modifier for the Key Pair 312
Configuring Certificate Enrollment for a PKI 313
Configuring a Cryptographically Generated Address 317
Configuring General CGA Parameters 317
Configuring CGA Address Generation on an Interface 317
Configuring SeND Parameters 318
Configuring the SeND Trustpoint 319
Configuring SeND Trust Anchors on the Interface 322
Configuring Secured and Nonsecured Neighbor Discovery Message Coexistence Mode 323
Configuring SeND Parameters Globally 324
Configuring the SeND Time Stamp 325
Configuring IPv6 PACL 326
Creating an IPv6 Access List 326
Configuring PACL Mode and Applying IPv6 PACL on an Interface 326
Configuration Examples for Implementing First Hop Security in IPv6 328
Example: IPv6 ND Inspection and RA Guard Configuration 328
Example: IPv6 RA Guard Configuration 328
Example Configuring PACL Mode and Applying IPv6 PACL on an Interface 328
Example SeND Configuration Examples 329
Example Configuring Certificate Servers 329
Example Configuring a Host to Enable SeND 330
Example Configuring a Router to Enable SeND 330
Example Configuring a SeND Trustpoint in Router Mode 332
Example Configuring SeND Trust Anchors in the Host Mode 332
Example Configuring CGA Address Generation on an Interface 332
Additional References 333
Feature Information for Implementing First Hop Security in IPv6 334
Glossary 337
Implementing IPsec in IPv6 Security 339
Finding Feature Information 339
Information About Implementing IPsec for IPv6 Security 339
IPsec for IPv6 339
IPv6 IPsec Site-to-Site Protection Using Virtual Tunnel Interface 340
OSPFv3 Authentication Support with IPsec 341
How to Implement IPsec for IPv6 Security 342
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MT xiii
Configuring a VTI for Site-to-Site IPv6 IPsec Protection 342
Creating an IKE Policy and a Preshared Key in IPv6 342
Configuring ISAKMP Aggressive Mode 345
Configuring an IPsec Transform Set and IPsec Profile 346
Defining an ISAKMP Profile in IPv6 347
Configuring IPv6 IPsec VTI 349
Verifying IPsec Tunnel Mode Configuration 351
Troubleshooting IPsec for IPv6 Configuration and Operation 354
Examples 354
Configuration Examples for IPsec for IPv6 Security 357
Example: Configuring a VTI for Site-to-Site IPv6 IPsec Protection 357
Additional References 358
Feature Information for Implementing IPsec in IPv6 Security 359
Implementing IS-IS for IPv6 361
Finding Feature Information 361
Restrictions for Implementing IS-IS for IPv6 361
Information About Implementing IS-IS for IPv6 362
IS-IS Enhancements for IPv6 362
IS-IS Single-Topology Support for IPv6 362
IS-IS Multitopology Support for IPv6 362
Transition from Single-Topology to Multitopology Support for IPv6 363
IPv6 IS-IS Local RIB 363
How to Implement IS-IS for IPv6 363
Configuring Single-Topology IS-IS for IPv6 363
Configuring Multitopology IS-IS for IPv6 365
Customizing IPv6 IS-IS 367
Redistributing Routes into an IPv6 IS-IS Routing Process 370
Redistributing IPv6 IS-IS Routes Between IS-IS Levels 371
Disabling IPv6 Protocol-Support Consistency Checks 372
Disabling IPv4 Subnet Consistency Checks 373
Verifying IPv6 IS-IS Configuration and Operation 374
Examples 376
Configuration Examples for IPv6 IS-IS 378
Example Configuring Single-Topology IS-IS for IPv6 378
Example: Customizing IPv6 IS-IS 379
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MTxiv
Example: Redistributing Routes into an IPv6 IS-IS Routing Process 379
Example: Redistributing IPv6 IS-IS Routes Between IS-IS Levels 379
Example: Disabling IPv6 Protocol-Support Consistency Checks 379
Example Configuring Multitopology IS-IS for IPv6 379
Example: Configuring the IS-IS IPv6 Metric for Multitopology IS-IS 380
Additional References 380
Feature Information for Implementing IS-IS for IPv6 381
Implementing IPv6 for Network Management 383
Finding Feature Information 383
Information About Implementing IPv6 for Network Management 383
Telnet Access over IPv6 383
TFTP IPv6 Support 384
TFTP File Downloading for IPv6 384
ping and traceroute Commands in IPv6 384
SSH over an IPv6 Transport 384
SNMP over an IPv6 Transport 384
Cisco IPv6 MIBs 384
MIBs Supported for IPv6 385
Cisco IPv6 Embedded Management Components 385
Syslog 385
CNS Agents 386
CNS Configuration Agent 386
CNS Event Agent 386
CNS EXEC Agent 386
CNS Image Agent 386
Config Logger 387
HTTP(S) IPv6 Support 387
TCL 387
NETCONF 387
SOAP Message Format 387
IP SLAs for IPv6 387
How to Implement IPv6 for Network Management 388
Enabling Telnet Access to an IPv6 Device and Establishing a Telnet Session 388
Enabling SSH on an IPv6 Device 390
Configuring an SNMP Notification Server over IPv6 391
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MT xv
Configuring Cisco IOS IPv6 Embedded Management Components 393
Configuring Syslog over IPv6 394
Disabling HTTP Access to an IPv6 Device 394
Configuration Examples for Implementing IPv6 for Network Management 395
Examples: Enabling Telnet Access to an IPv6 Device 395
Example: Disabling HTTP Access to the Device 396
Examples: Configuring an SNMP Notification Server over IPv6 397
Additional References 397
Feature Information for Implementing IPv6 for Network Management 400
Implementing Mobile IPv6 403
Finding Feature Information 403
Restrictions for Implementing Mobile IPv6 403
Information About Implementing Mobile IPv6 403
Mobile IPv6 Overview 404
How Mobile IPv6 Works 404
IPv6 NEMO 404
Mobile IPv6 Home Agent 405
Binding Cache in Mobile IPv6 Home Agent 405
Binding Update List in Mobile IPv6 Home Agent 405
Home Agents List 405
NEMO-Compliant Home Agent 406
Implicit Prefix Registration 406
Explicit Prefix Registration 406
Packet Headers in Mobile IPv6 406
IPv6 Neighbor Discovery with Mobile IPv6 407
IPv6 Neighbor Discovery Duplicate Address Detection in NEMO 407
Mobile IPv6 Tunnel Optimization 407
IPv6 Host Group Configuration 407
Mobile IPv6 Node Identification Based on NAI 408
Authentication Protocol for Mobile IPv6 408
How to Implement Mobile IPv6 409
Enabling Mobile IPv6 on the Router 409
Configuring Binding Information for Mobile IPv6 410
Enabling and Configuring NEMO on the IPv6 Mobile Router 412
Enabling NEMO on the IPv6 Mobile Router Home Agent 414
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MTxvi
Enabling Roaming on the IPv6 Mobile Router Interface 415
Filtering Mobile IPv6 Protocol Headers and Options 416
Controlling ICMP Unreachable Messages 419
Verifying Native IPv6 Tunneling for Mobile IPv6 420
Configuring and Verifying Host Groups for Mobile IPv6 420
Customizing Mobile IPv6 on the Interface 423
Monitoring and Maintaining Mobile IPv6 on the Router 425
Examples 426
Configuration Examples for Implementing Mobile IPv6 428
Example: Enabling Mobile IPv6 on the Router 429
Example: Enabling and Configuring NEMO on the IPv6 Mobile Router 429
Example: Enabling NEMO on the IPv6 Mobile Router Home Agent 430
Example: Enabling Roaming on the IPv6 Mobile Router Interface 430
Example: Configuring Host Groups for Mobile IPv6 431
Additional References 431
Feature Information for Implementing Mobile IPv6 432
Implementing IPv6 Multicast 435
Finding Feature Information 435
Prerequisites for Implementing IPv6 Multicast 435
Restrictions for Implementing IPv6 Multicast 435
Information About Implementing IPv6 Multicast 437
IPv6 Multicast Overview 437
IPv6 Multicast Addressing 438
IPv6 Multicast Groups 439
Scoped Address Architecture 439
IPv6 Multicast Routing Implementation 440
Multicast Listener Discovery Protocol for IPv6 441
MLD Access Group 442
Explicit Tracking of Receivers 442
IPv6 Multicast User Authentication and Profile Support 442
IPv6 MLD Proxy 443
Protocol Independent Multicast 443
PIM-Sparse Mode 443
Designated Router 444
Rendezvous Point 445
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MT xvii
PIMv6 Anycast RP Solution Overview 446
IPv6 BSR: Configure RP Mapping 446
PIM-Source Specific Multicast 446
SSM Mapping for IPv6 447
PIM Shared Tree and Source Tree (Shortest-Path Tree) 447
Reverse Path Forwarding 449
Routable Address Hello Option 449
Bidirectional PIM 449
Static Mroutes 450
MRIB 450
MFIB 450
Distributed MFIB 450
IPv6 Multicast VRF Lite 451
IPv6 Multicast Process Switching and Fast Switching 451
Multiprotocol BGP for the IPv6 Multicast Address Family 452
NSF and SSO Support In IPv6 Multicast 452
Bandwidth-Based CAC for IPv6 Multicast 452
How to Implement IPv6 Multicast 452
Enabling IPv6 Multicast Routing 453
Customizing and Verifying the MLD Protocol 453
Customizing and Verifying MLD on an Interface 454
Implementing MLD Group Limits 456
Implementing MLD Group Limits Globally 457
Implementing MLD Group Limits per Interface 457
Configuring Explicit Tracking of Receivers to Track Host Behavior 458
Configuring Multicast User Authentication and Profile Support 459
Prerequisites 459
Restrictions 459
Enabling AAA Access Control for IPv6 Multicast 460
Specifying Method Lists and Enabling Multicast Accounting 460
Disabling the Router from Receiving Unauthenticated Multicast Traffic 461
Enabling MLD Proxy in IPv6 462
Resetting Authorization Status on an MLD Interface 463
Resetting the MLD Traffic Counters 464
Clearing the MLD Interface Counters 465
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MTxviii
Configuring PIM 465
Configuring PIM-SM and Displaying PIM-SM Information for a Group Range 465
Configuring PIM Options 467
Configuring Bidirectional PIM and Displaying Bidirectional PIM Information 469
Resetting the PIM Traffic Counters 471
Clearing the PIM Topology Table to Reset the MRIB Connection 471
Configuring a BSR 473
Configuring a BSR and Verifying BSR Information 474
Sending PIM RP Advertisements to the BSR 475
Configuring BSR for Use Within Scoped Zones 476
Configuring BSR Routers to Announce Scope-to-RP Mappings 477
Configuring SSM Mapping 478
Configuring Static Mroutes 480
Configuring IPv6 Multiprotocol BGP 481
Configuring an IPv6 Peer Group to Perform Multicast BGP Routing 482
What to Do Next 483
Advertising Routes into IPv6 Multiprotocol BGP 484
Redistributing Prefixes into IPv6 Multiprotocol BGP 485
Assigning a BGP Administrative Distance 486
Generating Translate Updates for IPv6 Multicast BGP 487
Resetting IPv6 BGP Sessions 488
Clearing External BGP Peers 489
Clearing IPv6 BGP Route Dampening Information 490
Clearing IPv6 BGP Flap Statistics 490
Configuring Bandwidth-Based CAC for IPv6 491
Configuring the Interface Limit for Bandwidth-Based CAC in IPv6 491
Configuring an Access List for Bandwidth-Based CAC in IPv6 492
Configuring the Global Limit for Bandwidth-Based CAC in IPv6 494
Using MFIB in IPv6 Multicast 494
Verifying MFIB Operation in IPv6 Multicast 494
Resetting MFIB Traffic Counters 496
Disabling Default Features in IPv6 Multicast 497
Disabling Embedded RP Support in IPv6 PIM 497
Turning Off IPv6 PIM on a Specified Interface 498
Disabling MLD Router-Side Processing 499
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MT xix
Disabling MFIB on the device 500
Disabling MFIB on a Distributed Platform 501
Disabling MFIB Interrupt-Level IPv6 Multicast Forwarding 502
Examples 502
Configuration Examples for Implementing IPv6 Multicast 509
Example: Enabling IPv6 Multicast Routing 509
Example: Configuring the MLD Protocol 509
Example: Configuring Explicit Tracking of Receivers 510
Example: Configuring MLD Proxy 511
Example: Configuring PIM 511
Example: Configuring PIM Options 511
Example Configuring Mroutes 512
Example Configuring an IPv6 Multiprotocol BGP Peer Group 512
Example Redistributing Prefixes into IPv6 Multiprotocol BGP 512
Example: Generating Translate Updates for IPv6 Multicast BGP 512
Example: Configuring Bandwidth-Based CAC for IPv6 512
Example: Configuring the Interface Limit for Bandwidth-Based CAC in IPv6 512
Example: Configuring an Access List for Bandwidth-Based CAC in IPv6 513
Example: Configuring the Global Limit for Bandwidth-Based CAC 513
Example: Disabling Embedded RP Support in IPv6 PIM 513
Example Turning Off IPv6 PIM on a Specified Interface 513
Example: Disabling MLD Router-Side Processing 513
Example Disabling and Reenabling MFIB 513
Additional References 514
Feature Information for Implementing IPv6 Multicast 515
PIMv6 Anycast RP Solution 523
Finding Feature Information 523
Information About the PIMv6 Anycast RP Solution 523
PIMv6 Anycast RP Solution Overview 523
PIMv6 Anycast RP Normal Operation 524
PIMv6 Anycast RP Failover 524
How to Configure the PIMv6 Anycast RP Solution 525
Configuring PIMv6 Anycast RP 525
Configuration Examples for the PIMv6 Anycast RP Solution 528
Example: Configuring PIMv6 Anycast RP 528
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MTxx
Additional References 529
Feature Information for the PIMv6 Anycast RP Solution 530
Implementing Multiprotocol BGP for IPv6 531
Finding Feature Information 531
Information About Implementing Multiprotocol BGP for IPv6 531
Multiprotocol BGP Extensions for IPv6 531
IPv6 Multiprotocol BGP Peering Using a Link-Local Address 532
Multiprotocol BGP for the IPv6 Multicast Address Family 532
Nonstop Forwarding and Graceful Restart for MP-BGP IPv6 Address Family 532
How to Implement Multiprotocol BGP for IPv6 533
Configuring an IPv6 BGP Routing Process and BGP Router ID 533
Configuring IPv6 Multiprotocol BGP Between Two Peers 534
Configuring an IPv6 Multiprotocol BGP Peer Using a Link-Local Address 536
Troubleshooting Tips 540
Configuring an IPv6 Multiprotocol BGP Peer Group 540
Advertising Routes into IPv6 Multiprotocol BGP 543
Configuring a Route Map for IPv6 Multiprotocol BGP Prefixes 544
Redistributing Prefixes into IPv6 Multiprotocol BGP 547
Advertising IPv4 Routes Between IPv6 BGP Peers 548
Assigning BGP Administrative Distance for Multicast BGP Routes 551
Generating IPv6 Multicast BGP Updates 552
Configuring the IPv6 BGP Graceful Restart Capability 554
Resetting IPv6 BGP Sessions 555
Clearing External BGP Peers 555
Clearing IPv6 BGP Route Dampening Information 556
Clearing IPv6 BGP Flap Statistics 556
Verifying IPv6 Multiprotocol BGP Configuration and Operation 557
Configuration Examples for Multiprotocol BGP for IPv6 558
Example: Configuring a BGP Process, BGP Router ID, and IPv6 Multiprotocol BGP Peer 559
Example: Configuring an IPv6 Multiprotocol BGP Peer Using a Link-Local Address 559
Example: Configuring an IPv6 Multiprotocol BGP Peer Group 559
Example: Advertising Routes into IPv6 Multiprotocol BGP 560
Example: Configuring a Route Map for IPv6 Multiprotocol BGP Prefixes 560
Example: Redistributing Prefixes into IPv6 Multiprotocol BGP 560
Example: Advertising IPv4 Routes Between IPv6 Peers 560
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MT xxi
Additional References 561
Feature Information for Implementing Multiprotocol BGPfor IPv6 562
Implementing NAT-PT for IPv6 565
Finding Feature Information 565
Prerequisites for Implementing NAT-PT for IPv6 565
Restrictions for Implementing NAT-PT for IPv6 565
Information About Implementing NAT-PT for IPv6 566
NAT-PT Overview 566
Static NAT-PT Operation 567
Dynamic NAT-PT Operation 567
Port Address Translation or Overload 568
IPv4-Mapped Operation 568
How to Implement NAT-PT for IPv6 569
Configuring Basic IPv6 to IPv4 Connectivity for NAT-PT for IPv6 569
Configuring IPv4-Mapped NAT-PT 571
Configuring Mappings for IPv6 Hosts Accessing IPv4 Hosts 572
Configuring Mappings for IPv4 Hosts Accessing IPv6 Hosts 575
Configuring PAT for IPv6 to IPv4 Address Mappings 577
Verifying NAT-PT Configuration and Operation 579
Examples 580
Configuration Examples for NAT-PT for IPv6 582
Example: Static NAT-PT Configuration 582
Example: Enabling Traffic to be Sent from an IPv6 Network to an IPv4 Network 582
Example: Dynamic NAT-PT Configuration for IPv6 Hosts Accessing IPv4 Hosts 582
Example: Dynamic NAT-PT Configuration for IPv4 Hosts Accessing IPv6 Hosts 583
Additional References 583
Feature Information for Implementing NAT-PT for IPv6 585
Netflow v9 for IPv6 587
Finding Feature Information 587
Prerequisites for Netflow v9 for IPv6 587
Information About Netflow v9 for IPv6 587
NetFlow and NDE on the PFC 587
NetFlow Export Format Version 9 588
Configuring Netflow v9 for IPv6 590
Configuration Examples for Configuring Netflow v9 for IPv6 593
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MTxxii
Example: Configuring the NetFlow v9 for IPv6 Feature 593
Additional References 594
Feature Information for Netflow v9 for IPv6 595
Implementing NTPv4 in IPv6 597
Finding Feature Information 597
Information About Implementing NTPv4 in IPv6 597
NTP Version 4 597
NTPv4 Overview 598
NTPv4 Features 598
IPv6 Multicast Mode 598
NTP Access Groups versus Symmetric Key Authentication 599
DNS Support for IPv6 in NTPv4 599
How to Implement NTPv4 in IPv6 599
Configuring Poll-Based NTPv4 Associations 599
Configuring Symmetric Active Mode 600
Configuring Client Mode 601
Configuring Multicast-Based NTPv4 Associations 602
Configuring an Interface to Send NTPv4 Multicast Packets 602
Configuring an Interface to Receive NTPv4 Multicast Packets 603
Defining an NTPv4 Access Group 604
Configuring NTPv4 Authentication 604
Disabling NTPv4 Services on a Specific Interface 605
Configuring the Source IPv6 Address for NTPv4 Packets 606
Configuring the System as an Authoritative NTP Server 607
Updating the Hardware Clock 608
Resetting the Drift Value in the Persistent Data File 608
Troubleshooting NTPv4 in IPv6 609
Configuration Examples for NTPv4 in IPv6 610
Example: Defining an NTPv4 Access Group 610
Additional References 610
Feature Information for Implementing NTPv4 in IPv6 612
Implementing OSPFv3 613
Finding Feature Information 613
Prerequisites for Implementing OSPFv3 613
Restrictions for Implementing OSPFv3 614
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MT xxiii
Information About Implementing OSPFv3 614
How OSPFv3 Works 614
Comparison of OSPFv3 and OSPF Version 2 615
OSPFv3 Address Families 615
LSA Types for OSPFv3 616
OSPFv3 Max-Metric Router LSA 617
NBMA in OSPFv3 617
Force SPF in OSPFv3 618
Fast Convergence: LSA and SPF Throttling 618
Load Balancing in OSPFv3 618
Addresses Imported into OSPFv3 618
OSPFv3 Customization 618
OSPFv3 Authentication Support with IPsec 619
OSPFv3 Virtual Links 620
OSPFv3 Cost Calculation 620
OSPFv3 External Path Preference Option 622
OSPFv3 Graceful Restart 622
BFD Support for OSPFv3 623
How to Implement OSPFv3 623
Configuring the OSPFv3 Router Process 623
Configuring the IPv6 Address Family in OSPFv3 626
Configuring the IPv4 Address Family in OSPFv3 628
Configuring Route Redistribution in OSPFv3 631
Enabling OSPFv3 on an Interface 632
Defining an OSPFv3 Area Range for the IPv6 or IPv4 Address Family 633
Defining an OSPFv3 Area Range 635
Configuring the OSPFv3 Max-Metric Router LSA 636
Configuring IPsec on OSPFv3 637
Defining Authentication on an Interface 637
Defining Encryption on an Interface 638
Defining Authentication in an OSPFv3 Area 640
Defining Encryption in an OSPFv3 Area 641
Defining Authentication and Encryption for a Virtual Link in an OSPFv3 Area 642
Configuring NBMA Interfaces in OSPFv3 643
Tuning LSA and SPF Timers for OSPFv3 Fast Convergence 645
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MTxxiv
Configuring LSA and SPF Throttling for OSPFv3 Fast Convergence 646
Enabling Event Logging for LSA and SPF Rate Limiting for the IPv6 and IPv4 Address
Family 647
Enabling Event Logging for LSA and SPF Rate Limiting 649
Clearing the Content of an Event Log 649
Calculating OSPFv3 External Path Preferences per RFC 5340 650
Enabling OSPFv3 Graceful Restart 651
Enabling OSPFv3 Graceful Restart on a Graceful-Restart-Capable Router 651
Enabling OSPFv3 Graceful Restart on a Graceful-Restart-Capable Router 652
Enabling OSPFv3 Graceful Restart on a Graceful-Restart-Aware Router 653
Enabling OSPFv3 Graceful Restart on a Graceful-Restart-Aware Router 653
Forcing an SPF Calculation 654
Verifying OSPFv3 Configuration and Operation 655
Verifying OSPFv3 Configuration and Operation 659
Examples 660
Configuration Examples for Implementing OSPFv3 663
Example: Enabling OSPFv3 on an Interface Configuration 663
Example: Defining an OSPFv3 Area Range 663
Example: Defining Authentication on an Interface 663
Example: Defining Authentication in an OSPFv3 Area 664
Example: Configuring NBMA Interfaces 664
Example: Configuring LSA and SPF Throttling for OSPFv3 Fast Convergence 664
Example: Forcing SPF Configuration 664
Additional References 664
Feature Information for Implementing OSPFv3 666
Implementing IPv6 over MPLS 671
Finding Feature Information 671
Prerequisites for Implementing IPv6 over MPLS 671
Information About Implementing IPv6 over MPLS 672
Benefits of Deploying IPv6 over MPLS Backbones 672
IPv6 over a Circuit Transport over MPLS 672
IPv6 Using Tunnels on the Customer Edge Routers 672
IPv6 on the Provider Edge Routers 673
6PE Multipath 674
How to Implement IPv6 over MPLS 675
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MT xxv
Deploying IPv6 over a Circuit Transport over MPLS 675
Deploying IPv6 on the Provider Edge Routers (6PE) 675
Specifying the Source Address Interface on a 6PE Router 675
Binding and Advertising the 6PE Label to Advertise Prefixes 677
Configuring iBGP Multipath Load Sharing 679
Verifying 6PE Configuration and Operation 680
Output Examples 681
Configuration Examples for IPv6 over MPLS 683
Example: Customer Edge Router 683
Example: Provider Edge Router 683
Example: Core Router 684
Where to Go Next 685
Additional References 685
Feature Information for Implementing IPv6 over MPLS 686
Implementing IPv6 VPN over MPLS 689
Finding Feature Information 689
Prerequisites for Implementing IPv6 VPN over MPLS 689
Restrictions for Implementing IPv6 VPN over MPLS 690
Information About Implementing IPv6 VPN over MPLS 690
IPv6 VPN over MPLS Overview 690
Addressing Considerations for IPv6 VPN over MPLS 690
Basic IPv6 VPN over MPLS Functionality 691
IPv6 VPN Architecture Overview 691
IPv6 VPN Next Hop 692
MPLS Forwarding 692
6VPE over GRE Tunnels 692
VRF Concepts 693
IPv6 VPN Scalability 693
Advanced IPv6 MPLS VPN Functionality 694
Internet Access 694
Multiautonomous-System Backbones 695
Carrier Supporting Carriers 696
BGP IPv6 PIC Edge for IP MPLS 696
How to Implement IPv6 VPN over MPLS 696
Configuring a Virtual Routing and Forwarding Instance for IPv6 697
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MTxxvi
Binding a VRF to an Interface 699
Configuring a Static Route for PE-to-CE Routing 701
Configuring eBGP PE-to-CE Routing Sessions 701
Configuring the IPv6 VPN Address Family for iBGP 703
Configuring Route Reflectors for Improved Scalability 704
Configuring Internet Access 712
Configuring the Internet Gateway 712
Configuring iBGP 6PE Peering to the VPN PE 712
Configuring the Internet Gateway as the Gateway to the Public Domain 714
Configuring eBGP Peering to the Internet 715
Configuring the IPv6 VPN PE 717
Configuring a Default Static Route from the VRF to the Internet Gateway 717
Configuring a Static Route from the Default Table to the VRF 718
Configuring iBGP 6PE Peering to the Internet Gateway 719
Configuring a Multiautonomous-System Backbone for IPv6 VPN 720
Configuring the PE VPN for a Multiautonomous-System Backbone 722
Configuring iBGP IPv6 VPN Peering to a Route Reflector 722
Configuring IPv4 and Label iBGP Peering to a Route Reflector 724
Configuring the Route Reflector for a Multiautonomous-System Backbone 725
Configuring Peering to the PE VPN 726
Configuring the Route Reflector 728
Configuring Peering to the Autonomous System Boundary Router 731
Configuring Peering to Another ISP Route Reflector 733
Configuring the ASBR 735
Configuring Peering with Router Reflector RR1 736
Configuring Peering with the Other ISP ASBR2 737
Configuring CSC for IPv6 VPN 740
Configuring BGP IPv6 PIC Edge for IP MPLS 741
Verifying and Troubleshooting IPv6 VPN 743
Verifying and Troubleshooting Routing 743
Example: BGP IPv6 Activity Summary 743
Example: Dumping the BGP IPv6 Tables 743
Example: Dumping the IPv6 Routing Tables 744
Verifying and Troubleshooting Forwarding 744
Example: PE-CE Connectivity 744
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MT xxvii
Example: PE Imposition Path 745
Example: PE Disposition Path 747
Example: Label Switch Path 747
Example: VRF Information 748
Debugging Routing and Forwarding 748
Configuration Examples for Implementing IPv6 VPN over MPLS 749
Example: IPv6 VPN Configuration Using IPv4 Next Hop 749
Additional References 749
Feature Information for Implementing IPv6 VPN over MPLS 751
Glossary 752
Implementing Policy-Based Routing for IPv6 755
Finding Feature Information 755
Restrictions for Implementing Policy-Based Routing for IPv6 755
Information About Implementing Policy-Based Routing for IPv6 756
Policy-Based Routing Overview 756
How Policy-Based Routing Works 756
Packet Matching 757
Packet Forwarding Using Set Statements 757
When to Use Policy-Based Routing 758
How to Implement Policy-Based Routing for IPv6 758
Enabling PBR on an Interface 758
Enabling Local PBR for IPv6 763
Enabling Cisco Express Forwarding-Switched PBR for IPv6 763
Verifying Configuration and Operation of PBR for IPv6 763
Troubleshooting PBR for IPv6 764
Examples 765
Configuration Examples for Implementing Policy-Based Routing for IPv6 765
Example: Enabling PBR on an Interface 765
Example: Enabling Local PBR for IPv6 766
Additional References 766
Feature Information for Implementing Policy-Based Routing for IPv6 767
Implementing QoS for IPv6 769
Finding Feature Information 769
Restrictions for Implementing QoS for IPv6 769
Information About Implementing QoS for IPv6 769
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MTxxviii
Implementation Strategy for QoS for IPv6 770
Packet Classification in IPv6 770
Policies and Class-Based Packet Marking in IPv6 Networks 770
Congestion Management in IPv6 Networks 771
Congestion Avoidance for IPv6 Traffic 771
Traffic Policing in IPv6 Environments 771
How to Implement QoS for IPv6 771
Classifying Traffic in IPv6 Networks 771
Specifying Marking Criteria for IPv6 Packets 771
Using the Match Criteria to Manage IPv6 Traffic Flows 773
Confirming the Service Policy 774
Configuration Examples for Implementing QoS for IPv6 776
Example: Verifying Cisco Express Forwarding Switching 776
Example: Verifying Packet Marking Criteria 777
Example: Matching DSCP Value 782
Additional References 783
Feature Information for Implementing QoS for IPv6 784
Implementing RIP for IPv6 787
Finding Feature Information 787
Information About Implementing RIP for IPv6 787
RIP for IPv6 787
Nonstop Forwarding for IPv6 RIP 788
How to Implement RIP for IPv6 788
Enabling the IPv6 RIP Process 788
Customizing IPv6 RIP 789
Redistributing Routes into an IPv6 RIP Routing Process 791
Configuring Route Tags for IPv6 RIP Routes 792
Filtering IPv6 RIP Routing Updates 793
Verifying IPv6 RIP Configuration and Operation 796
Examples 796
Configuration Examples for IPv6 RIP 798
Example IPv6 RIP Configuration 798
Additional References 799
Feature Information for Implementing RIP for IPv6 800
Implementing Selective Packet Discard in IPv6 803
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MT xxix
Finding Feature Information 803
Contents 803
Information About Implementing Selective Packet Discard in IPv6 803
SPD in IPv6 Overview 804
SPD State Check 804
SPD Mode 804
SPD Headroom 804
How to Implement Selective Packet Discard in IPv6 805
Configuring the SPD Process Input Queue 805
Configuring an SPD Mode 806
Configuring SPD Headroom 807
Configuration Examples for IPv6 Selective Packet Discard 808
Example Configuring the SPD Process Input Queue 808
Additional References 808
Feature Information for Implementing Selective Packet Discard in IPv6 810
Implementing Static Routes for IPv6 813
Finding Feature Information 813
Restrictions for IPv6 Routing: Static Routing 813
Information About Implementing Static Routes for IPv6 813
Static Routes 814
Directly Attached Static Routes 814
Recursive Static Routes 814
Fully Specified Static Routes 815
Floating Static Routes 815
How to Implement Static Routes for IPv6 816
Configuring a Static IPv6 Route 816
Configuring a Recursive IPv6 Static Route to Use a Default IPv6 Static Route 817
Configuring a Floating Static IPv6 Route 817
Verifying Static IPv6 Route Configuration and Operation 819
Examples 820
Configuration Examples for Implementing Static Routes for IPv6 823
Example: Configuring Manual Summarization 823
Example: Configuring Traffic Discard 824
Example: Configuring a Fixed Default Route 824
Example: Configuring a Floating Static Route 824
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MTxxx
Additional References 825
Feature Information for Implementing Static Routes for IPv6 826
Implementing Traffic Filters and Firewalls for IPv6 Security 829
Finding Feature Information 829
Restrictions for Implementing Traffic Filters and Firewalls for IPv6 Security 829
Information About Implementing Traffic Filters and Firewalls for IPv6 Security 830
Access Control Lists for IPv6 Traffic Filtering 830
IPv6 ACL Extensions for IPsec Authentication Header 830
Access Class Filtering in IPv6 830
Tunneling Support 831
Virtual Fragment Reassembly 831
Cisco IOS Firewall for IPv6 831
PAM in Cisco IOS Firewall for IPv6 831
Cisco IOS Firewall Alerts Audit Trails and System Logging 832
IPv6 Packet Inspection 832
Cisco IOS Firewall Restrictions 832
Zone-Based Policy Firewall IPv6 Support 832
ACL--Hardware and Software Counters Granularity for IPv4 and IPv6 ACL Statistics 832
How to Implement Traffic Filters and Firewalls for IPv6 Security 833
Configuring IPv6 Traffic Filtering 833
Creating and Configuring an IPv6 ACL for Traffic Filtering 833
Applying the IPv6 ACL to an Interface 835
Controlling Access to a vty 836
Creating an IPv6 ACL to Provide Access Class Filtering 836
Applying an IPv6 ACL to the Virtual Terminal Line 838
Configuring TCP or UDP Matching 839
Creating an IPv6 ACL for Traffic Filtering in Cisco IOS Release 12.2(11)T 12.0(22)S or
Earlier Releases 840
Creating an IPv6 ACL in Cisco IOS Release 12.2(11)T 12.0(22)S or Earlier Releases 841
Applying the IPv6 ACL to an Interface in Cisco IOS Release 12.2(11)T 12.0(22)S or
Earlier Releases 842
Configuring the Cisco IOS Firewall for IPv6 843
Configuring PAM for IPv6 846
Creating an IPv6 Access Class Filter for PAM 846
Applying the IPv6 Access Class Filter to PAM 848
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MT xxxi
Configuring Zone-Based Firewall in IPv6 849
Configuring an Inspect-Type Parameter Map 849
Creating and Using an Inspect-Type Class Map 850
Creating and Using an Inspect-Type Policy Map 852
Creating Security Zones and Zone Pairs 853
Configuring ACL Hardware and Software Counters Granularity for IPv4 and IPv6 ACL
Statistics 854
Verifying IPv6 Security Configuration and Operation 855
Troubleshooting IPv6 Security Configuration and Operation 857
Examples 859
Configuration Examples for Implementing Traffic Filters and Firewalls for IPv6 Security 863
Examples Creating and Applying IPv6 ACLs 863
Example: Creating and Applying an IPv6 ACL 863
Example Creating and Applying an IPv6 ACL for 12.2(11)T 12.0(22)S or Earlier
Releases 864
Example Controlling Access to a vty 864
Example: Configuring TCP or UDP Matching 865
Example: Configuring Cisco IOS Firewall for IPv6 865
Example: Configuring Cisco IOS Zone-Based Firewall for IPv6 866
Additional References 866
Feature Information for Implementing Traffic Filters and Firewalls for IPv6 Security 868
IPv6 ACL Extensions for Hop by Hop Filtering 871
Finding Feature Information 871
Information About IPv6 ACL Extensions for Hop by Hop Filtering 871
ACLs and Traffic Forwarding 871
How to Configure IPv6 ACL Extensions for Hop by Hop Filtering 872
Configuring IPv6 ACL Extensions for Hop by Hop Filtering 872
Configuration Example for IPv6 ACL Extensions for Hop by Hop Filtering 873
Example: IPv6 ACL Extensions for Hop by Hop Filtering 873
Additional References 874
Feature Information for IPv6 ACL Extensions for Hop by Hop Filtering 875
Implementing Tunneling for IPv6 877
Finding Feature Information 877
Restrictions for Implementing Tunneling for IPv6 877
Information About Implementing Tunneling for IPv6 877
Overlay Tunnels for IPv6 878
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MTxxxii
IPv6 Manually Configured Tunnels 880
GRE IPv4 Tunnel Support for IPv6 Traffic 880
GRE Support over IPv6 Transport 881
mGRE Tunnels Support over IPv6 881
GRE CLNS Tunnel Support for IPv4 and IPv6 Packets 881
Automatic 6to4 Tunnels 881
Automatic IPv4-Compatible IPv6 Tunnels 882
IPv6 Rapid Deployment Tunnels 882
ISATAP Tunnels 882
IPv6 IPsec Site-to-Site Protection Using Virtual Tunnel Interface 883
How to Implement Tunneling for IPv6 883
Configuring Manual IPv6 Tunnels 883
Configuring GRE IPv6 Tunnels 885
Configuring Automatic 6to4 Tunnels 886
Configuring IPv4-Compatible IPv6 Tunnels 888
Configuring 6RD Tunnels 890
Configuring ISATAP Tunnels 891
Verifying IPv6 Tunnel Configuration and Operation 892
Examples 893
Configuration Examples for Implementing Tunneling for IPv6 895
Example: Configuring Manual IPv6 Tunnels 895
Example Configuring GRE Tunnels 895
Example: GRE Tunnel Running IS-IS and IPv6 Traffic 895
Example: Tunnel Destination Address for IPv6 Tunnel 896
Example: Configuring CTunnels in GRE Mode to Carry IPv6 Packets in CLNS 897
Example: Configuring 6to4 Tunnels 897
Example: Configuring IPv4-Compatible IPv6 Tunnels 898
Example: Configuring 6RD Tunnels 898
Example: Configuring ISATAP Tunnels 899
Additional References 899
Feature Information for Implementing Tunneling for IPv6 900
Implementing VoIP for IPv6 905
Finding Feature Information 905
Prerequisites for Implementing VoIP for IPv6 905
Restrictions for Implementing VoIP for IPv6 906
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MT xxxiii
Information About Implementing VoIP for IPv6 906
SIP Voice Gateways in VoIPv6 906
Cisco Unified Border Element in VoIPv6 906
MTP Used with Voice Gateways in VoIPv6 906
How to Implement VoIP for IPv6 906
Configuring a SIP Voice Gateway for IPv6 907
Restrictions 907
Shutting Down or Enabling VoIPv6 Service on Cisco Gateways 908
Shutting Down or Enabling VoIPv6 Submodes on Cisco Gateways 908
Configuring the Protocol Mode of the SIP Stack 909
Disabling ANAT Mode 910
Configuring the Source IPv6 Address of Signaling and Media Packets 911
Configuring the SIP Server 912
Configuring the Session Target 914
Configuring SIP Register Support 915
Configuring Outbound Proxy Server Globally on a SIP Gateway 916
Verifying SIP Gateway Status 917
Configuring H.323 IPv4-to-SIPv6 Connections in a Cisco Unified Border Element 920
Configuring MTP Used with Voice Gateways 921
Restrictions 922
Configuring MTP for IPv4-to-IPv6 Translation 922
RTCP Pass-Through 924
Restrictions 925
Configuring T.38 Fax Globally 925
Configuring IPv6 Support for Cisco UBE 927
Example: Verifying RTCP Pass-Through 928
Verifying T.38 Fax Configuration 929
Configuration Examples for Implementing VoIP over IPv6 931
Example: Configuring the SIP Trunk 931
Example: Configuring the Source IPv6 Address of Signaling and Media Packets 931
Example; Configuring the SIP Server 932
Example: Configuring the Session Target 932
Example: Configuring SIP Register Support 932
Example: Configuring H.323 IPv4 to SIPv6 Connections in a Cisco Unified Border
Element 932
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MTxxxiv
Example Configuring MTP for IPv4-to-IPv6 Translation 933
Additional References 933
Feature Information for Implementing VoIP for IPv6 935
IPv6 RFCs 937
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MT xxxv
Contents
IPv6 Configuration Guide, Cisco IOS Release 15.2MTxxxvi
Start Here: Cisco IOS Software ReleaseSpecifics for IPv6 Features
The IPv6 for Cisco IOS software feature documentation provides implementation and command referenceinformation for IPv6 features supported in the Cisco IOS software. This Start Here document details onlythe Cisco IOS software release specifics for IPv6 features. Not all IPv6 features may be supported in yourCisco IOS software release. We strongly recommend that you read this entire document before reading theother IPv6 for Cisco IOS software feature documentation.
Finding Feature Information, page 1 Cisco IOS Software Platform Dependencies and Restrictions, page 1 Cisco IOS IPv6 Features and Supported Software Releases, page 2 Cisco Platforms Supporting IPv6 Hardware Forwarding, page 27 Additional References, page 30
Finding Feature InformationYour software release may not support all the features documented in this module. For the latest caveatsand feature information, see Bug Search Tool and the release notes for your platform and software release.To find information about the features documented in this module, and to see a list of the releases in whicheach feature is supported, see the feature information table at the end of this module.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support.To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
Cisco IOS Software Platform Dependencies and RestrictionsSee the table below to determine which IPv6 features are supported in each release of the Cisco IOSsoftware trains.
Note For information about IPv6 features in Cisco IOS XE software releases, see "Start Here: Cisco IOS XESoftware Release Specifics for IPv6 Features."
IPv6 was introduced on the 12.0(21)ST Cisco IOS software release train, which was merged with the12.0S Cisco IOS software release train starting at Cisco IOS Release 12.0(22)S. The 12.0S Cisco IOSsoftware release train provides IPv6 support on Cisco 12000 series Internet routers and Cisco 10720Internet routers only.
IPv6 Configuration Guide, Cisco IOS Release 15.2MT 1
http://www.cisco.com/cisco/psn/bssprt/bsshttp://www.cisco.com/go/cfn
The 12.2S Cisco IOS release train comprises a family of release trains, each supporting differentplatforms as follows:
The 12.2SB Cisco IOS release train comprises the Cisco 10000, 7304, 7301, and 7200 series. Asof Cisco IOS Release 12.2(33)SB, the Cisco 7200 and 7301 series are not supported on the12.2SB release train.
The 12.2SE Cisco IOS release train consists of the Cisco Catalyst 3560, 3750, 3560E, 3750E series, and theCisco Catalyst 3750 Metro series.
The 12.2SG Cisco IOS release train consists of the Cisco Catalyst 4500 and Cisco Catalyst 4900series.
The 12.2SR Cisco IOS release train consists of the Cisco 7600 and 7200 series routers. The 12.2SX Cisco IOS release train consists of the Cisco Catalyst 6500. Before the 12.2SR Cisco
IOS release train, the 12.2SX release train also included the Cisco 7600 series. The 15.0M, 15.1T, and 15.2T Cisco IOS release trains are a continuation of the 12.2, 12.3, and 12.4
Cisco IOS release trains. IPv6 is also supported in some special software release trains.
Cisco IOS IPv6 Features and Supported Software ReleasesThe table below lists the IPv6 features supported in the 12.0S, 12.x T, 12.2S, 12.2SR, 12.2SX, 12.2SY,12.3, 12.4, 15.0M, 15.0S, 15.0SY, 15.1S, 15.2S, 15.1T, and 15.2T Cisco IOS software release trains.
Note The table identifies the earliest release for each software release train in which the feature becameavailable. Unless noted otherwise in the table, subsequent releases of that Cisco IOS software release trainalso support that feature.
Table 1 Supported IPv6 Feature
Feature Location 12.x T/ 15.x TRelease
12.x /15.xRelease
12.2SERelease
12.2SG,15.xxSG 3.xSG Release
12.2SR/ 15SRelease
12.2SX, 12.2SY,15.0SYRelease
IPv6
IPv6: BaseProtocolsHighAvailability
ImplementingIPv6Addressing andBasicConnectivity
-- -- -- -- 12.2(33)SRE --
IPv6: CNSAgents forIPv6
ImplementingIPv6 forNetworkManagement
12.4(20) 15.0 -- 12.2 (50)SG
3.2.0SG
15.0(2)SG
12.2(33)SRC 12.2 (50)SY
Start Here: Cisco IOS Software Release Specifics for IPv6 Features Cisco IOS IPv6 Features and Supported Software Releases
IPv6 Configuration Guide, Cisco IOS Release 15.2MT2
Feature Location 12.x T/ 15.x TRelease
12.x /15.xRelease
12.2SERelease
12.2SG,15.xxSG 3.xSG Release
12.2SR/ 15SRelease
12.2SX, 12.2SY,15.0SYRelease
IPv6 DeviceTracking
ImplementingFirst HopSecurity inIPv6
-- -- -- -- -- 12.2 (50)SY
EnhancedIPv6NeighborDiscoveryCacheManagement
ImplementingIPv6Addressing andBasicConnectivity
-- -- -- -- -- 12.2 (33)SXI7
IPv6: FullSelectivePacketDiscardSupport
ImplementingSelectivePacket Discardin IPv6
15.1(3) -- -- -- -- --
IPv6:HTTP(S)IPv6 Support(Infrastructure)
ImplementingIPv6 forNetworkManagement
12.4(20) 15.0 12.2 (44)SE 12.2 (44)SG
3.2.0SG
15.0(2)SG
12.2(33)SRC 12.2 (50)SY
IPv6: ICMPRate Limiting
ImplementingIPv6Addressing andBasicConnectivity
12.2(8) 12.3 12.2 (25)SE 12.2 (25)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA 12.2 (17a)SX1
IPv6:ICMPv6
ImplementingIPv6Addressing andBasicConnectivity
12.2(2) 12.3 12.2 (25)SEA 12.2 (25)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA (17a)SX1
IPv6:ICMPv6Redirect
ImplementingIPv6Addressing andBasicConnectivity
12.2(4) 12.3 12.2 (25)SEA 12.2 (25)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA 12.2 (17a)SX1
IPv6: IPv6ICMP RFC4443
ImplementingIPv6Addressing andBasicConnectivity
12.4(9)T -- 12.2(52) 12.2 (50)SG
3.2.0SG
15.0(2)SG
-- 12.2 (33)SXI
Start Here: Cisco IOS Software Release Specifics for IPv6 FeaturesCisco IOS IPv6 Features and Supported Software Releases
IPv6 Configuration Guide, Cisco IOS Release 15.2MT 3
Feature Location 12.x T/ 15.x TRelease
12.x /15.xRelease
12.2SERelease
12.2SG,15.xxSG 3.xSG Release
12.2SR/ 15SRelease
12.2SX, 12.2SY,15.0SYRelease
IPv6: IPSLAs forIPv6
ImplementingIPv6 forNetworkManagement
12.4(20) 15.0 -- 12.2 (50)SG
3.2.0SG
15.0(2)SG
12.2 (33)SRC 12.2 (50)SY
IPv6 ACLExtensions forMobile IPv6
ImplementingMobile IPv6
12.4(2) -- -- -- 12.2(33)SRB 12.2(33)SXI
IPv6: IPv6DefaultRouterPreferences
ImplementingIPv6Addressing andBasicConnectivity
12.4(2) 15.0 (46) 12.2 (46)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA 12.2 (33)SXH
IPv6: IPv6 forConfigLogger
ImplementingIPv6 forNetworkManagement
12.4(20) 15.0 -- 12.2 (50)SG
3.2.0SG
15.0(2)SG
12.2(33)SRC 12.2(50)SY
IPv6: IPv6MTU PathDiscovery
ImplementingIPv6Addressing andBasicConnectivity
12.2(2) 12.3 (25)SEA 12.2 (25)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA 12.2 (17a)SX1
IPv6: IPv6NeighborDiscovery
ImplementingIPv6Addressing andBasicConnectivity
12.2(2) 12.3 (25)SEA 12.2 (25)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA 12.2(17a)SX1
IPv6: IPv6NETCONFSupport
ImplementingIPv6 forNetworkManagement
12.4(20) 15.0 -- 12.2 (50)SG
3.2.0SG
15.0(2)SG
12.2(33)SRC 12.2 (50)SY
IPv6: IPv6StatelessAutocon-figuration
ImplementingIPv6Addressing andBasicConnectivity
12.2(2) 12.3 (25)SEA 12.2 (25)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA 12.2 (17a)SX1
IPv6: IPv6StatelessAddressAutoconfiguration RFC4862
ImplementingIPv6Addressing andBasicConnectivity
12.4(9)T -- 12.2(52) 12.2 (50)SG
3.2.0SG
15.0(2)SG
-- 12.2 (33)SXI
Start Here: Cisco IOS Software Release Specifics for IPv6 Features Cisco IOS IPv6 Features and Supported Software Releases
IPv6 Configuration Guide, Cisco IOS Release 15.2MT4
Feature Location 12.x T/ 15.x TRelease
12.x /15.xRelease
12.2SERelease
12.2SG,15.xxSG 3.xSG Release
12.2SR/ 15SRelease
12.2SX, 12.2SY,15.0SYRelease
IPv6: IPv6Static CacheEntry forNeighborDiscovery
ImplementingIPv6Addressing andBasicConnectivity
12.2(8) 12.3 (25)SEA 12.2 (25)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA 12.2 (17a)SX1
IPv6: Per-InterfaceNeighborDiscoveryCache Limit
ImplementingIPv6Addressing andBasicConnectivity
15.1(3) -- -- -- -- --
IPv6: IPv6Support forTCL
ImplementingIPv6 forNetworkManagement
12.4(20) 15.0 -- 12.2 (50)SG
3.2.0SG
15.0(2)SG
12.2(33)SRC 12.2(50)SY
IPv6: IPv6Support inSOAP
ImplementingIPv6 forNetworkManagement
12.4(20) 15.0 -- 12.2 (50)SG
3.2.0SG
15.0(2)SG
12.2(33)SRC 12.2 (50)SY
TACACS+over IPv6
ImplementingADSL andDeploying DialAccess for IPv6
15.2(1) 15.1(1)S (58) -- 15.1(1)S 12.2(33)SXJ
IPv6 VPNover MPLS
ImplementingIPv6 VPN overMPLS
12.4(20) 15.0 -- -- 12.2(33)SRB 12.2 (33)SXI
Mobile IPv6Basic NEMO
ImplementingMobile IPv6
12.4(20) 15.0 -- -- -- --
Mobile IPv6Home Agent
ImplementingMobile IPv6
12.3(14) 12.4 -- -- -- --
MPLS VPN6VPE Supportover IPTunnels
ImplementingIPv6 VPN overMPLS
-- -- -- -- 12.2(33)SRB1 12.2 (33)SXI
BGP IPv6PIC Edge forIP/MPLS
ImplementingIPv6 VPN overMPLS
-- -- -- -- 15.1(2)S --
Start Here: Cisco IOS Software Release Specifics for IPv6 FeaturesCisco IOS IPv6 Features and Supported Software Releases
IPv6 Configuration Guide, Cisco IOS Release 15.2MT 5
Feature Location 12.x T/ 15.x TRelease
12.x /15.xRelease
12.2SERelease
12.2SG,15.xxSG 3.xSG Release
12.2SR/ 15SRelease
12.2SX, 12.2SY,15.0SYRelease
BGP IPv6Client forSingle_HopBFD
ConfiguringBGP NeighborSessionOptions
-- -- -- -- 15.1(2)S --
IPv6:NeighborDiscoveryDuplicateAddressDetection
ImplementingIPv6Addressing andBasicConnectivity
12.2(4) 12.3 (25)SEA 12.2 (25)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA 12.2 (17a)SX1
IPv6 NDInspection
ImplementingFirst HopSecurity inIPv6
-- -- -- -- -- 12.2 (50)SY
IPv6: FlexibleNetFlow forIPv6 ReplacesIPv6 NetFlow
ImplementingNetFlow forIPv6
12.4(20) 15.0 -- -- -- --
IPv6: Ping ImplementingIPv6 forNetworkManagement
12.2(2) 12.3 (25)SEA 12.2 (25)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA 12.2 (17a)SX1
IPv6: syslogover IPv6
ImplementingIPv6 forNetworkManagement
12.4(4) 15.0 (44) 12.2 (44)SG
3.2.0SG
15.0(2)SG
12.2(33)SRB 12.2 (33)SXI
IPv6: Telnet,DNS, TFTPClient,Traceroute
ImplementingIPv6Addressing andBasicConnectivity,ImplementingIPv6 forNetworkManagement
12.2(2) 12.3 (25)SEA 12.2 (25)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA 12.2(17a)SX1
IPv6: uRPF ImplementingIPv6Addressing andBasicConnectivity
-- -- -- -- -- 12.2 (50)SY
Start Here: Cisco IOS Software Release Specifics for IPv6 Features Cisco IOS IPv6 Features and Supported Software Releases
IPv6 Configuration Guide, Cisco IOS Release 15.2MT6
Feature Location 12.x T/ 15.x TRelease
12.x /15.xRelease
12.2SERelease
12.2SG,15.xxSG 3.xSG Release
12.2SR/ 15SRelease
12.2SX, 12.2SY,15.0SYRelease
IPv6 AddressTypes:Anycast
ImplementingIPv6Addressing andBasicConnectivity
12.3(4) 12.4 (25)SEA 12.2 (25)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA 12.2 (33)SXH
IPv6 AddressTypes:Unicast
ImplementingIPv6Addressing andBasicConnectivity
12.2(2) 12.3 (25)SEA -- 12.2(33)SRA 12.2 (17a)SX1
IPv6 PACLSupport
ImplementingFirst HopSecurity inIPv6
-- -- (46) 12.2 (54)SG
3.2.0SG
15.0(2)SG
-- 12.2(33)SXI4
IPv6 RAGuard
ImplementingFirst HopSecurity inIPv6
-- -- -- 12.2 (54)SG
3.2.0SG
15.0(2)SG
-- 12.2 (33)SXI4
IPv6 SelectivePacketDiscard
ImplementingSelectivePacket Discardin IPv6
-- -- -- -- 12.2(33)SRC 12.2 (33)SXH
IPv6 Supporton BVIInterfaces
ImplementingIPv6Addressing andBasicConnectivity
15.1(2) -- -- -- -- --
FTP IPv6Support
ImplementingIPv6 forNetworkManagement
15.2(1) -- -- -- 15.1(3)S --
IPv6SwitchingServices
CEFv6SwitchedConfiguredIPv6 overIPv4 Tunnels
ImplementingTunneling forIPv6
15.1(3) -- -- -- -- --
Start Here: Cisco IOS Software Release Specifics for IPv6 FeaturesCisco IOS IPv6 Features and Supported Software Releases
IPv6 Configuration Guide, Cisco IOS Release 15.2MT 7
Feature Location 12.x T/ 15.x TRelease
12.x /15.xRelease
12.2SERelease
12.2SG,15.xxSG 3.xSG Release
12.2SR/ 15SRelease
12.2SX, 12.2SY,15.0SYRelease
CEFv6SwitchedConfiguredIPv6 overIPv6 GRETunnels
ImplementingTunneling forIPv6
15.1(3) -- -- -- -- --
IPv6Switching:CEFv6SwitchedAutomaticIPv4-CompatibleTunnels
ImplementingTunneling forIPv6
12.3(2) 12.4 -- -- 12.2(33)SRA 12.2(17a)SX1
IPv6Switching:CEFv6SwitchedConfiguredIPv6 overIPv4 Tunnels
ImplementingTunneling forIPv6
12.2(13) 12.4 -- -- 12.2(33)SRA 12.2(18)SXE
IPv6Switching:CEFv6SwitchedISATAP
ImplementingTunneling forIPv6
12.3(2) 12.4 -- 12.2 (25)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA 12.2(17a)SX1
IPv6Switching:Cisco ExpressForwarding/DistributedCisco ExpressForwardingSupport
ImplementingIPv6Addressing andBasicConnectivity
12.2(13) 12.3 (25)SEA 12.2 (25)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA 12.2 (17a)SX1
IPv6Switching:Provider EdgeRouter overMPLS (6PE)
ImplementingIPv6 overMPLS
12.2(15) 12.3 -- -- 12.2(33)SRA 12.2(17b)SXA
IPv6 Routing
Start Here: Cisco IOS Software Release Specifics for IPv6 Features Cisco IOS IPv6 Features and Supported Software Releases
IPv6 Configuration Guide, Cisco IOS Release 15.2MT8
Feature Location 12.x T/ 15.x TRelease
12.x /15.xRelease
12.2SERelease
12.2SG,15.xxSG 3.xSG Release
12.2SR/ 15SRelease
12.2SX, 12.2SY,15.0SYRelease
BFD IPv6EncapsulationSupport
ImplementingBidirectionalForwardingDetection forIPv6
15.1(2) -- -- -- 12.2(33)SRE 15.0(1)SY
BFD Supportfor EIGRPIPv6
IP Routing:BFDConfigurationGuide
-- -- -- -- 15.2(2)S --
EIGRP IPv6VRF Lite
ImplementingEIGRP forIPv6
-- -- -- -- 15.1(1)S 15.0(1)SY1
IPv6 Routing:EIGRPSupport
ImplementingEIGRP forIPv6
12.4(6) -- (40) 12.2 (40)SG
3.2.0SG
15.0(2)SG
12.2(33)SRB 12.2 (33)SXI
IPv6 Policy-BasedRouting
ImplementingPolicy-BasedRouting forIPv6
12.3(7) 12.4 -- -- 15.2(1)S 12.2 (33)SXI4
IPv6 Routing:IS-ISMultitopologySupport forIPv6
ImplementingIS-IS for IPv6
12.2(15) 12.3 -- 12.2 (25)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA 12.2 (18)SXE
IPv6 Routing:IS-IS Supportfor IPv6
ImplementingIS-IS for IPv6
12.2(8) 12.3 -- 12.2 (25)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA (17a)SX1
IPv6 IS-ISLocal RIB
ImplementingIS-IS for IPv6
12.3(4)T 12.4 -- -- 12.2(33)SRA 12.2 (33)SXH
IPv6 Routing:MultiprotocolBGPExtensions forIPv6
ImplementingMultiprotocolBGP for IPv6
12.2(2) 12.3 -- 12.2 (25)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA 12.2 (17a)SX1
Start Here: Cisco IOS Software Release Specifics for IPv6 FeaturesCisco IOS IPv6 Features and Supported Software Releases
IPv6 Configuration Guide, Cisco IOS Release 15.2MT 9
Feature Location 12.x T/ 15.x TRelease
12.x /15.xRelease
12.2SERelease
12.2SG,15.xxSG 3.xSG Release
12.2SR/ 15SRelease
12.2SX, 12.2SY,15.0SYRelease
IPv6 Routing:MultiprotocolBGP Link-Local AddressPeering
ImplementingMultiprotocolBGP for IPv6
12.2(4) 12.3 -- 12.2 (25)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA 12.2(17a)SX1
IPv6: NSFand GracefulRestart forMP-BGPIPv6 AddressFamily
ImplementingMultiprotocolBGP for IPv6
-- -- -- -- 12.2(33)SRE 15.0(1)SY
OSPFv3 FastConvergence:LSA and SPFThrottling
ImplementingOSPFv3
-- 15.0(1)M -- -- 12.2(33)SRC 15.0(1)SY
IPv6 Routing:OSPFv3
ImplementingOSPFv3
12.2(15) 12.3 (25)SEA 12.2 (25)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA 12.2 (17a)SX1
IPv6 Routing:OSPF forIPv6Authentication Supportwith IPsec
ImplementingOSPFv3
12.3(4) 12.4 -- -- 15.2(1)S 15.0(1)SY1
OSPFv3IPSec ESPEncryptionandAuthenticationn
ImplementingOSPFv3
12.4(9) 15.0 -- -- -- 15.0(1)SY1
IPv6 Routing:RIP for IPv6(RIPng)
ImplementingRIP for IPv6
12.2(2) 12.3 (25)SEA 12.2 (25)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA 12.2 (17a)SX1
IPv6: RIPngNonstopForwarding
ImplementingRIP for IPv6
-- -- -- -- 12.2(33)SRE 15.0(1)SY
Start Here: Cisco IOS Software Release Specifics for IPv6 Features Cisco IOS IPv6 Features and Supported Software Releases
IPv6 Configuration Guide, Cisco IOS Release 15.2MT10
Feature Location 12.x T/ 15.x TRelease
12.x /15.xRelease
12.2SERelease
12.2SG,15.xxSG 3.xSG Release
12.2SR/ 15SRelease
12.2SX, 12.2SY,15.0SYRelease
IPv6 Routing:RouteRedistribution
ImplementingIS-IS for IPv6,ImplementingRIP for IPv6
12.2(2) 12.3 (25)SEA 12.2 (25)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA 12.2 (18)SXE
IPv6 Routing:Static Routing
ImplementingStatic Routesfor IPv6
12.2(2) 12.3 (25)SEA 12.2 (25)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA 12.2 (17a)SX1
OSPFv3AddressFamilies
ImplementingOSPFv3
15.2(1) -- -- -- 15.1(3)S --
OSPFv3DynamicInterface CostSupport
ImplementingOSPFv3
12.4(15) 15.0 -- -- -- --
OSPFv3External PathPreferenceOption
ImplementingOSPFv3
15.2(3) -- -- -- 15.1(3)S --
OSPFv3 forBFD
ImplementingOSPFv3,ImplementingBidirectionalForwardingDetection forIPv6
15.1(2) -- -- -- 12.2(33)SRE 15.0(1)SY
OSPFv3GracefulRestart
ImplementingOSPFv3
-- 15.0(1)M (58) -- 12.2(33)SRE 15.0(1)SY
OSPFv3ManetExtensions
IP MobilityGuide
15.2(1) -- -- -- -- --
OSPFv3 Max-Metric RouterLSA
ImplementingOSPFv3
15.2(3) -- -- -- 15.1(3)S --
Static RouteSupport forBFD overIPv6
ImplementingBidirectionalForwardingDetection forIPv6
15.1(2) -- -- -- -- 15.0(1)SY1
Start Here: Cisco IOS Software Release Specifics for IPv6 FeaturesCisco IOS IPv6 Features and Supported Software Releases
IPv6 Configuration Guide, Cisco IOS Release 15.2MT 11
Feature Location 12.x T/ 15.x TRelease
12.x /15.xRelease
12.2SERelease
12.2SG,15.xxSG 3.xSG Release
12.2SR/ 15SRelease
12.2SX, 12.2SY,15.0SYRelease
VRF LiteSupport forIPv6
ImplementingMultiprotocolBGP for IPv6
-- -- (58) -- -- --
IPv6 ServicesandManagement
Hardware andSoftwareCountersGranularityfor IPv4 andIPv6 ACLStatistics
ImplementingTraffic Filtersand Firewallsfor IPv6Security
-- -- -- -- -- 12.2 (50)SY
IPsec IPv6Phase 2Support
ImplementingIPSec in IPv6Security
12.4(4) 15.0 -- -- -- --
IPv6 SecureNeighborDiscovery(SeND)
ImplementingFirst HopSecurity inIPv6
12.4(24) 15.0 -- -- -- --
IPv6 Services:AAAA DNSLookups overan IPv4Transport
ImplementingIPv6Addressing andBasicConnectivity
12.2(2) 12.3 (25)SEA 12.2 (25)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA 12.2 (17a)SX1
IPv6 Services:CiscoDiscoveryProtocol: IPv6AddressFamilySupport forNeighborInformation
ImplementingIPv6Addressing andBasicConnectivity
12.2(8) 12.3 (25)SEE 12.2 (25)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA 12.2 (18)SXE
IPv6 Services:CISCO-IP-FORWARDING-MIBSupport
ImplementingIPv6 forNetworkManagement
12.2(15) 12.3 (25)SEE 12.2 (25)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA 12.2 (18)SXE
Start Here: Cisco IOS Software Release Specifics for IPv6 Features Cisco IOS IPv6 Features and Supported Software Releases
IPv6 Configuration Guide, Cisco IOS Release 15.2MT12
Feature Location 12.x T/ 15.x TRelease
12.x /15.xRelease
12.2SERelease
12.2SG,15.xxSG 3.xSG Release
12.2SR/ 15SRelease
12.2SX, 12.2SY,15.0SYRelease
IPv6 Services:CISCO-IP-MIB Support
ImplementingIPv6 forNetworkManagement
12.2(15) 12.3 (25)SEE 12.2 (25)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA 12.2 (18)SXE
IPv6 Services:DNS Lookupsover an IPv6Transport
ImplementingIPv6Addressing andBasicConnectivity
12.2(8) 12.3 (25)SED 12.2 (25)SG
3.2.0SG
15.0(2)SG
12.2(33)SRE2 12.2 (17a)SX1
IPv6 Services:ExtendedAccessControl Lists
ImplementingTraffic Filtersand Firewallsfor IPv6Security
12.2(13) 12.3 (25)SED 12.2 (25)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA 12.2 (17a)SX1
FHRP: GLBPfor IPv6
ConfiguringFirst HopRedundancyProtocols inIPv6
12.4(6) 15.0 (58) -- -- 12.2 (33)SXI
IPv6 Services:GenericPrefix
ImplementingIPv6Addressing andBasicConnectivity
12.3(4) 12.4 -- -- -- --
HSRP forIPv6
ConfiguringFirst HopRedundancyProtocols inIPv6
12.4(4) 15.0 (46) 12.2 (52)SG
3.2.0SG
15.0(2)SG
12.2(33)SRB 12.2 (33)SXI
HSRP: GlobalIPv6 Address
ConfiguringFirst HopRedundancyProtocols inIPv6
-- -- -- -- -- 12.2 (33)SXI4
SSO: HSRP ConfiguringFirst HopRedundancyProtocols inIPv6
-- -- -- 12.2 (52)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA 12.2 (33)SXH
Start Here: Cisco IOS Software Release Specifics for IPv6 FeaturesCisco IOS IPv6 Features and Supported Software Releases
IPv6 Configuration Guide, Cisco IOS Release 15.2MT 13
Feature Location 12.x T/ 15.x TRelease
12.x /15.xRelease
12.2SERelease
12.2SG,15.xxSG 3.xSG Release
12.2SR/ 15SRelease
12.2SX, 12.2SY,15.0SYRelease
ISSU: HSRP ConfiguringFirst HopRedundancyProtocols inIPv6
-- -- -- 12.2 (52)SG
3.2.0SG
15.0(2)SG
-- 12.2 (33)SXI
IOS Zone-BasedFirewall
ImplementingTraffic Filtersand Firewallsfor IPv6Security
15.1(2) -- -- -- -- --
IPv6 ACLExtensions forIPsecAuthentication Header
ImplementingTraffic Filtersand Firewallsfor IPv6Security
12.4(20) 15.0 -- -- -- --
IPv6 ACLExtensions forHop by HopFiltering
IPv6 ACLExtensions forHop by HopFiltering
15.2(3) -- -- -- 15.2(2)S --
IPv6 IOSFirewall
ImplementingTraffic Filtersand Firewallsfor IPv6Security
12.3(7) 12.4 -- -- -- --
IPv6 IOSFirewall FTPApplicationSupport
ImplementingTraffic Filtersand Firewallsfor IPv6Security
12.3(11) -- -- -- -- --
IPv6 IPsecVPN
ImplementingIPSec in IPv6Security
12.4(4) 15.0 -- -- -- --
IPv6 RemoteAccess forIPSec VPN
FlexVPN andInternet KeyExchangeVersion 2ConfigurationGuide
15.2(3) -- -- -- -- --
Start Here: Cisco IOS Software Release Specifics for IPv6 Features Cisco IOS IPv6 Features and Supported Software Releases
IPv6 Configuration Guide, Cisco IOS Release 15.2MT14
Feature Location 12.x T/ 15.x TRelease
12.x /15.xRelease
12.2SERelease
12.2SG,15.xxSG 3.xSG Release
12.2SR/ 15SRelease
12.2SX, 12.2SY,15.0SYRelease
IPv6 overDMVPN
ImplementingDynamicMultipointVPN over IPv6
12.4(20) 15.0 -- -- -- --
IPv6Transport forDMVPN
ImplementingDynamicMultipointVPN over IPv6
15.2(1) -- -- -- -- --
IPv6 Services:RFC 4293 IP-MIB (IPv6Only) andRFC 4292 IP-FORWARD-MIB (IPv6Only)
ImplementingIPv6 forNetworkManagement
15.1(3) -- (58) 12.2 (54)SG
3.2.0SG
15.0(2)SG
12.2(33)SRC 12.2 (50)SY
IPv6 Services:Secure Shell(SSH)Support overIPv6
ImplementingIPv6 forNetworkManagement
12.2(8) 12.3 (25)SEE 12.2 (25)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA 12.2 (17a)SX1
IPv6 Services:SNMP overIPv6
ImplementingIPv6 forNetworkManagement
12.3(14) 12.4 (44) 12.2 (44)SG
3.2.0SG
15.0(2)SG
12.2(33)SRB 12.2(33)SXI
IPv6 Services:StandardAccessControl Lists
ImplementingTraffic Filtersand Firewallsfor IPv6Security
12.2(2) 12.3 (25)SED 12.2 (25)SG
3.2.0SG
15.0(2)SG
12.2(33)SRA 12.2(17a)SX1
IKEv2HeadendSupport forRemoteAccessClients
http://www.cisco.com/en/US/docs/ios-xml/ios/sec_conn_ikevpn/configuration/15-2mt/sec-key-exch-ver2.html
15.2(1) -- -- -- -- --
Start Here: Cisco IOS Software Release Specifics for IPv6 FeaturesCisco IOS IPv6 Features and Supported Software Releases
IPv6 Configuration Guide, Cisco IOS Release 15.2MT 15
Feature L
Recommended