| 7.2 |  | RIP |
| 7.2.6 |  | Troubleshooting RIP update issues |

| Most of the RIP configuration errors involve an incorrect network statement, discontiguous subnets, or split horizons. One highly effective command for finding RIP update issues is the debug ip rip command. The debug ip rip command displays RIP routing updates as they are sent and received. The example in Figure shows the output from a router using the debug ip rip command after receiving a RIP update. After receiving and processing the update, the router sends the newly updated information out its two RIP interfaces. The output shows the router is using RIP version 1 and broadcasts the update (broadcast address 255.255.255.255). The number in parenthesis represents the source address encapsulated into the IP header of the RIP update. There are several key indicators to look for in the output of the debug ip rip command. Problems such as discontiguous subnetworks or duplicate networks can be diagnosed with this command. A symptom of these issues would be a router advertising a route with a metric that is less than the metric it received for that network. Other commands to troubleshoot RIP: show ip rip database show ip protocols {summary} show ip route debug ip rip {events} show ip interface brief
| Lab Activity Lab Exercise: Troubleshooting RIP This lab is to set up an IP addressing scheme using class B networks.
| Lab Activity e-Lab Activity: Troubleshooting RIP Update Issues This lab is to perform a basic configuration of the router Pretoria.
| Lab Activity e-Lab Activity: Troubleshooting RIP In this lab, the students will be troubleshooting the Routing Information Protocol on the routers Gadsen and Birmingham.
| Web Links Configuring RIP http://www.cisco.com/en/US/products/sw/ iosswrel/ps1831/ products_configuration_guide_ chapter09186a00800d97f7.html#xtocid1