Information Technology Reference
In-Depth Information
Task 1: Design and Document an Addressing Scheme
Design an addressing scheme.
Step 1.
Using the topology in Figure 4-5 and the following requirements, design an addressing
scheme:
The WAN link between R1 and ISP is already configured.
■
For the WAN links between R1 and the branch routers (B1, B2, B3, and B4), subnet
the address space 10.0.1.0/28 to provide the necessary WAN subnets. Assign the sub-
nets using the following guidelines:
■
Subnet 0: R1 <—> B1
10.0.1.0/30
■
Subnet 1: R1 <—> B2
10.0.1.4/30
■
Subnet 2: R1 <—> B3
10.0.1.8/30
■
Subnet 3: R1 <—> B4
10.0.1.12/30
■
For the LANs attached to the branch routers, divide the address space 10.1.0.0/16 into
four equal subnets. Assign the subnets using the following guidelines:
■
Subnet 0: B1 LANs
10.1.0.0/18
■
Subnet 1: B2 LANs
10.1.64.0/18
■
Subnet 2: B3 LANs
10.1.128.0/18
■
Subnet 3: B4 LANs
10.1.192.0/18
■
For each branch router, divide that router's LAN subnet into four equal subnets.
Assign the subnets using the following guidelines:
■
B1 LANs:
Subnet 0: B1 Fa0/0
10.1.0.0/20
■
Subnet 1: B1 Fa0/1
10.1.16.0/20
■
Subnet 2: B1 Fa1/0
10.1.32.0/20
■
Subnet 3: B1 Fa1/1
10.1.48.0/20
■
B2 LANs:
Subnet 0: B2 Fa0/0
10.1.64.0/20
■
Subnet 1: B2 Fa0/1
10.1.80.0/20
■
Subnet 2: B2 Fa1/0
10.1.96.0/20
■
Subnet 3: B2 Fa1/1
10.1.112.0/20
■
B3 LANs:
Subnet 0: B3 Fa0/0
10.1.128.0/20
■
Subnet 1: B3 Fa0/1
10.1.144.0/20
■
Subnet 2: B3 Fa1/0
10.1.160.0/20
■
Subnet 3: B3 Fa1/1
10.1.176.0/20
■
