Lab Objective:
The focus of this lab is to understand Cisco Policy Based Routing (PBR) implementation and configuration in Cisco IOS routers. Additional technologies include EOT and path control.
Lab Topology:
The lab network topology is illustrated below:
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IMPORTANT NOTE If you are using the www.howtonetwork.net racks, please bring up the LAN interfaces connected to the routers by issuing the no shutdown command on the connected switches. If you are using a home lab with no interface fastethernet 0/0 Alternately, you can simply connect the interfaces to a hub or switch if you have one available in your own lab. |
Task 1
Configure hostnames, IP addressing on all routers as illustrated in the network topology. In addition, configure a Loopback 0 interface on R1 with the IP address 1.1.1.1/32.
Task 2
Configure EIGRP as illustrated in the topology. Do NOT enable EIGRP on the R1-R3 link or the R2-R3 link. You should ensure that no EIGRP packets are sent out of the FastEthernet0/0 interface on R2. R1 should advertise a default route to R4. Configure a static default route on R2 pointing to R3. Configure three static routes on R3: two static routes for the 150.1.1.0/24 subnet should point to R1; two static routes for 150.2.2.0/24 and 0.0.0.0/0 should point to R2.Verify your configuration using the appropriate commands.
Task 3
Configure IOS PBR on R1 so that all TCP and ICMP traffic from the 150.1.1.0/24 subnet to any subnet is forwarded to 10.0.0.2 (R2). In the event that the path via R2 is unavailable, configure PBR so that the router forwards this traffic to 10.0.0.6 (R3). However, this alternate path should ONLY be used based on Cisco Discovery Protocol (CDP) reachability information. Finally, ensure that all other traffic from the 150.1.1.0/24 subnet to any subnet should be forwarded via 10.0.0.3 (R3). If this path is down, this traffic should be discarded. Verify your configuration using the appropriate show commands and/or debugging commands.
Task 4
Configure IOS PBR with EOT on R2 and R3 such that when either of the routers’ WAN links to R1 is down, all traffic from the local LAN is sent across the R2-R3 link. When the WAN link is up, traffic from the LAN segments should be forwarded to R1. Verify your PBR configuration using the appropriate show and/or debugging commands.