This section provides information to configure RIP and examples of common configuration tasks. For a router to accept RIP updates, in the config>router rip context, you must define at least one group and one neighbor. A router ignores updates received from routers on interfaces not configured for RIP. Configuring other RIP commands and parameters is optional.
By default, the local router imports all routes from this neighbor and does not advertise routes. The router receives both RIPv1 and RIPv2 update messages with 25 to 255 route entries per message.
The RIP configuration commands have three primary configuration levels:
Within these levels, the RIP configuration commands are identical. For repeated commands, the value most specific to the neighboring router is used. Therefore, a RIP group-specific command takes precedence over a global RIP command. A neighbor-specific configuration statement takes precedence over a global RIP and group-specific command. For example, if the user modifies a RIP neighbor-level command default, the new value takes precedence over group- and global-level settings.
At a minimum, the group- and neighbor-level RIP parameters must be configured in the config>router rip context.
The following example displays a basic RIP configuration:
ALA-A>config>router>rip# info
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group "RIP-ALA-A"
neighbor "to-ALA-4"
exit
exit
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ALA-A>config>router>rip#