Basic VoIP Topology
Lab Procedures: Unit 5: Overview of the VoIP Basic VoIP
Topology1. Use the diagram and the configuration commands given
below to construct a basic network.
HQ1
hostname HQ1
no ip domain lookup
interface Loopback0
ip address 10.10.11.1 255.255.255.255
interface Serial0/0
ip address 10.10.10.1 255.255.255.252
clockrate 1300000
no shutdown
router ospf 84
network 10.0.0.0 0.255.255.255 area 0
line con 0
exec-timeout 0 0
password cisco
logging synchronous
login
line vty 0 4
password cisco
login
RemoteEnd2hostname RemoteEnd2
no ip domain lookup
interface Loopback0
ip address 10.10.11.2 255.255.255.255
interface Serial0/0
ip address 10.10.10.2 255.255.255.252
no shutdown
router ospf 84
network 10.0.0.0 0.255.255.255 area 0
line con 0
exec-timeout 0 0
password cisco
logging synchronous
login
line vty 0 4
password cisco
login
Name:
Review of basic router configuration commands
1. Why is the no shutdown command unnecessary for Lo0?
2. If the IP address on Lo0 was in the 192.168.100.0 network,
what additional command would be required?3. What is the purpose of
the logging synchronous command?
4. What is significant about the number 84 in the OSPF
command?
5. Verify that the Serial interfaces are up and OSPF is FULL (sh
ip ospf neighbor).
6. From HQ1 ping the serial 0/0 interface of RemoteEnd2.
Re-check configuration and do not continue until successful.
7. Pick up the receivers on the analog phones and listen for
dial-tone. What do you hear?
Save the configuration now in the location specified by your
instructor and name it BasicStartingConfig. Then begin to enter the
follow commands in the respective routers.
HQ1
RemoteEnd2dial-peer voice 1 pots
dial-peer voice 1 voip
destination-pattern 1111
destination-pattern 1111
port 1/0/0
session target ipv4:10.10.11.1
dial-peer voice 2 pots
dial-peer voice 2 pots
destination-pattern 1112
destination-pattern 2222
port 1/0/1
port 1/0/0
dial-peer voice 3 voip
dial-peer voice 3 voip
destination-pattern 2222
destination-pattern 1112
session target ipv4:10.10.11.2
session target ipv4:10.10.11.1
Name:1. Again pick up the phone receiver and listen. What is you
hear?
2. What does the term pots mean?
3. Ensure that all phones can place (dial) and receive (ring)
calls.4. From destination-pattern 2222 call destination-pattern
1111. Conduct an evaluation the connection quality. How much delay
is in the circuit? How much echo? Is there any audio drop-outs? How
much background noise is present? Do not hang-up the phone (leave
off-hook), continue to monitor and record your observations.
5. On the serial interface of HQ1 change the clockrate to 32000.
Is there any discernable difference in connection quality?
6. Now lower the clockrate to 28800. What is the difference?
7. Return the clockrate to 1300000 and enter the show voice port
command.
8. What type of voice port is 1/0/0?Enter the show dial-peer
voice command. Note the first line.
1. What destination pattern is associated with voice port
1/0/1?
2. Enter the show dial-peer voice 3 command. How does the first
line of the output differ from earlier?
3. Destination-pattern 2222 is associated with what target
session?
4. What compression algorithm (codec) is being utilized?Verify
the configuration is completely accurate and save it as
BasicVoIPconfig.
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Lab Handout
IT412 Voice and Data Integration
