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how to configure routing information protocol rip

Posted: 2014-04-02

RIP (Routing Information Protocol) is an old interior gateway protocol created for use in small, homogeneous networks. It is a classical distance-vector routing protocol. RIP uses UDP protocol to exchange routing information every 30 seconds and determines the best route by doing hop count or number of routers to the destination with maximum allowable hop count of 15 by default. The administrative distance of RIP is 120. RIP is not recommended protocol since it’s out of date. RIP Version 2 is updated version of RIP that supports plain text and Message Digest 5 (MD5) authentication, route summarization, classless interdomain routing (CIDR), and variable-length subnet masks (VLSMs). To Enable RIP basically turn on the protocol with router rip command and network command. Example of Enable RIP on a router or layer 3 switch Router#conf t Router(config)#no ip route Router(config)#router rip Router(config-router)#network Router(config-router)#network Router(config-router)#network Router(config-router)#no auto-summary In the example above, we simply removed any static routing and enabled RIP with three remote networks configured. If not removed, static routing will override RIP because of its administrative distance of 1 but there is no default gateway for unknown networks in this configuration. Use the command show ip route to see the routing table and parameters used to advertise remote networks.

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