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RIP isnt exactly the most complex routing protocol on the CCNA exam, but that makes it easy to overlook a number of the important facts you must bear in mind so as to pass the exam! Here are just a couple of those facts, to help you review for the examination! RIPs default behavior would be to send version 1 updates, but to simply accept both version 1 and 2 routing updates. R2 config #router split R2 config-router #net 172.16.0.0 R2 config-router #^Z R2#show internet protocol address protocols Routing Protocol is rip Sending updates every 30 seconds, next due in 6 seconds Invalid after 180 seconds, maintain down 180, flushed after 240 Outgoing update filter list for all interfaces is Incoming update filter list for all interfaces is Redistributing: grab Standard version control: send version 1, receive any version Interface Send Recv Key-chain Serial0 1 1 2 Automatically, RIP v2 autosummarizes routing updates sent across classful community boundaries. To eliminate this behavior, run no auto-summary beneath the RIP process. In case you hate to learn further on www.perrybelcher.sitew.org/#blog.a, we recommend heaps of libraries you should investigate. R1#conf t R1 config #router rip R1 config-router #version 2 R1 config-router #no auto-summary That you do not specify a mask or wildcard mask when establishing RIP just the classful network, even if youre working RIP v2. R1#conf t Enter configuration commands, one per line. Browse here at find perry belcher to read where to acknowledge this belief. End with CNTL/Z. R1 config #router split R1 config-router #version 2 R1 config-router #no auto-summary R1 config-router #network 172.10.0.0?? Debug ip rip shows the routing updates and metrics since the adverts are sent and requested. To see this in action without awaiting another regularly scheduled upgrade, run clear ip route *. R1#debug ip address tear RIP protocol debugging is on R1#clear ip address option * 01:16:54: RIP: sending v1 update to 255.255.255.255 via Loopback1 1.1.1.1 01:16:54: network 2.0.0.0, metric 2 01:16:54: network 3.0.0.0, metric 2 01:16:54: network 172.16.0.0, full 1 01:16:54: network 10.0.0.0, metric 2 01:16:54: RIP: delivering v1 update to 255.255.255.255 via Serial0 172.16.123.1 01:16:54: subnet 172.16.123.0, full 1 01:16:54: network 1.0.0.0, metric 1 01:16:54: system 2.0.0.0, metric 2 01:16:54: network 3.0.0.0, metric 2 01:16:54: network 10.0.0.0, full 2 To see only the routes discovered by a routing protocol, run show ip route followed by the title of the protocol: R1#show ip address way tear Dtc 2.0.0.0/8 [120/1] via 172.16.123.2, 00:00:26, Serial0 Kiminas 3.0.0.0/8 [120/1] via 172.16.13.2, 00:00:09, Serial1 [120/1] via 172.16.123.3, 00:00:09, Serial0 R 10.0.0.0/8 [120/1] via 172.16.13.2, 00:00:09, Serial1 [120/1] via 172.16.123.3, 00:00:09, Serial0 [120/1] via 172.16.123.2, 00:00:26, Serial0 And dont forget - to turn off all currently running debugs, work undebug all. R1#undebug all All possible debugging has been deterred As it pertains to the CCNA exam dont ignore RIP and IGRP. Learn new resources on our affiliated article by clicking find perry belcher. EIGRP and ospf are more complex to change, however, you need to understand how distance vector protocols work to be able to pass the CCNA!. To study additional information, consider peeping at: view site.