2.5.3 Packet Tracer – Removing and Configuring Static Routes Answers

2.5.3 Packet Tracer – Removing and Configuring Static Routes Answers

Topology

2.5.3 Packet Tracer - Removing and Configuring Static Routes Answers 2

Device Interface IP Address Subnet Mask Default Gateway
R1 Fa0/0 172.16.3.1 255.255.255.0 N/A
S0/0/0 172.16.2.1 255.255.255.0 N/A
R2 Fa0/0 172.16.1.1 255.255.255.0 N/A
S0/0/0 172.16.2.2 255.255.255.0 N/A
S0/0/1 192.168.1.2 255.255.255.0 N/A
R3 Fa0/0 192.168.2.1 255.255.255.0 N/A
S0/0/1 192.168.1.1 255.255.255.0 N/A
PC1 NIC 172.16.3.10 255.255.255.0 172.16.3.1
PC2 NIC 172.16.1.10 255.255.255.0 172.16.1.1
PC3 NIC 192.168.2.10 255.255.255.0 192.168.2.1

Introduction:

In this activity, we will examine the chapter topology configured with static routes that reference the next hop IP address and require a recursive lookup. We will replace these static routes with static routes that specify the outbound interfaces and do not require a recursive lookup and examine the results of the change.

Learning Objectives:

  • Examine the network with next hop static routes.
  • View the configuration.
  • Verify connectivity.
  • Update the network with outbound interface static routes.
  • Remove the next hop static routes.
  • Configure outbound interface static routes.
  • Examine the network with outbound interface static routes.
  • View the configuration.
  • Verify connectivity.

Task 1: Examine the network with next hop static routes.

Step 1 – View the configuration.

On each of the three routers:

  • Login to the router using password cisco. Enter privileged exec mode using password class.
  • Enter the command show running-config to see how static routing is currently configured.
  • Enter the command show ip route to see the effect of the configuration. Each static route must do a recursive lookup to a connected route to forward a packet.

Step 2 – Verify connectivity.

From the command line prompt on each of the three PCs, ping the other two PCs. All pings should succeed.

Task 2: Update the network with outbound interface static routes.

Step 1 – Remove the next hop static routes.

On each of the three routers enter global configuration mode and enter the following commands:

R1

R1(config)# no ip route 172.16.1.0 255.255.255.0 172.16.2.2
R1(config)# no ip route 192.168.1.0 255.255.255.0 172.16.2.2
R1(config)# no ip route 192.168.2.0 255.255.255.0 172.16.2.2

R2

R2(config)# no ip route 172.16.3.0 255.255.255.0 172.16.2.1
R2(config)# no ip route 192.168.2.0 255.255.255.0 192.168.1.1

R3

R3(config)# no ip route 172.16.1.0 255.255.255.0 192.168.1.2
R3(config)# no ip route 172.16.2.0 255.255.255.0 192.168.1.2
R3(config)# no ip route 172.16.3.0 255.255.255.0 192.168.1.2

Step 2 – Configure outbound interface static routes.

On each of the three routers, enter the following commands:

R1

R1(config)# ip route 172.16.1.0 255.255.255.0 s0/0/0
R1(config)# ip route 192.168.1.0 255.255.255.0 s0/0/0
R1(config)# ip route 192.168.2.0 255.255.255.0 s0/0/0

R2

R2(config)# ip route 172.16.3.0 255.255.255.0 s0/0/0
R2(config)# ip route 192.168.2.0 255.255.255.0 s0/0/1

R3

R3(config)# ip route 172.16.1.0 255.255.255.0 s0/0/1
R3(config)# ip route 172.16.2.0 255.255.255.0 s0/0/1
R3(config)# ip route 172.16.3.0 255.255.255.0 s0/0/1

Step 3 – Save the updated configurations.

On each of the three routers, exit configuration mode by hitting Ctrl+z. Save the configuration by issuing the command copy run start.

Task 3: Examine the network with outbound interface static routes.

Step 1 – View the configuration.

On each of the three routers:

  • Enter the command show running-config to see the revised configuration.
  • Enter the command show ip route to see the effect of the changed configuration. Each static route appears as directly connected and no recursive lookup is needed to forward a packet.

Step 2 – Verify connectivity.

From the command line prompt on each of the three PCs, ping the other two PCs. All pings should succeed, if not troubleshoot the static routes.

Download Packet Tracer (.pka) file:

Subscribe
Notify of
guest

0 Comments
Inline Feedbacks
View all comments