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NETW 204 Assignment 3 Week 5

Refering to figure 1 below: You are the network administrator for the network depicted in the diagram.You have been assigned the address space 10.1.16.0/21 to create the LANs you need, and the172.16.1.0/28 space for your WAN links.

LAN: 10.1.16.0/21WAN: 172.16.1.0/28

LAN Subnets

Begin by creating and assigning the LAN subnets you will use. In order to make the most efficient use ofyour address space you should start by creating the subnet needed for the LAN with the most hosts andthen work you down to the smallest LAN.Using the address space 10.1.16.0/21, create subnets for the LANs shown in the diagram and fill in thetable 1 below. Notice that the first 7 subnets are all basically the same size and all subnets are all factorsof 2 (remember 2n-2 where n is the number of host bits tells you the subnet size). Also remember for themost efficient addressing you should use the smallest size subnet that provides you the needed number ofhosts.

TABLE 1: (Questions 1-8)Question1.2.3.4.

5.6.7.8.

LANR1 LAN S3R1 LAN S4R2 LAN S5R2 LAN S6R3 LAN S7R3 LAN S8HQ LAN S1HQ LAN S2

Subnet Address

Subnet Mask

WAN SubnetsFor the WAN links, you have been assigned the 172.16.1.0/28 address space. Fill in the subnets in Table2 below by subnetting the assigned WAN space.TABLE 2: (Questions 9-11)Question9.10.11.

WANHQ-R1HQ-R2HQ-R3

Subnet Address

Subnet Mask

Assign addressesUse Table 3 below to document the IP addresses for the indicated interfaces following the guidelinesbelow:1. Assign the first IP address for all LANs to the router interface.2. Assign HQ the first IP address for all WAN links to Branch routers.

Table 3: (Questions 13-27)

1314

15161718192021222324252627

DeviceHQ Router

R1 RouterBonusR2 RouterR3 Router

InterfaceFa0/0Fa0/1S0/0/0S0/1/0S0/0/1Fa0/0Fa0/1n/aS0/0/0Fa0/0Fa0/1S0/0/0Fa0/0Fa0/1S0/0/0

Address

Mask

n/a

n/a

EIGRP Metric CalculationList the values used in the EIGRP composite metric tocalculate the preferred path (4):28293031

Routing concepts32

QuestionWhat is the default formula for the EIGRP compositemetric?

33

What command can be used to view the current K valuebeing used by EIGRP?

34

What command can be used to see the actual values ofthe EIGRP metric?

35

The _____________ metric is displayed in Kbps?

Answer

36

The default value used by most serial interfaces is basedon T1 connections and is______________bps?

37

The measure of the probability a link will fail based onits history (downtime, errors) is referred to as____________ and is measured with a value between 0and 255.____________represents the amount of traffic using thelink with a value between 0 and 255.

3839

What is the main difference between a parent route andan ultimate route?

40

What is the relationship between parent and childroutes?

41

Provide a brief description of a level 1 route:

42

What are the types of level one routes?

DUAL ConceptsList at least 3 advantages that DUAL offers:434445

46

Dual ConceptSuccessor

47

Feasible distance (FD)

48

Feasible successor

49

Feasibility condition (FC)

50

Reported Distance

Definition