ip summary-address rip




ip summary-address rip ip-address ip-network-mask
no ip summary-address rip ip-address ip-network-mask


Syntax Description:

ip-address IP address to be summarized.
ip-network-mask IP network mask that drives route summarization for the specified IP address.


Command Description:

To configure a Cisco router running Routing Information Protocol (RIP) to advertise a summarized local IP address pool on a network access server so that the address pool can be provided to dialup clients and specify the IP address and network mask that identify the routes to be summarized, use the ip summary-address rip command in router configuration mode. To disable the configuration of the ip summary-address rip command, use the no form of this command.


In the following example the major network is The summary address overrides the autosummary address of, so that is advertised out Ethernet interface 1 and is not advertised.

Router(config)# router rip
Router(config-router)# network
Router(config-router)# neighbor peer-group mygroup
Router(config-router)# exit
Router(config)# router interface e1
Router(config-if)# ip address
Router(config-if)# ip summary-address rip
Router(config-if)# no ip split-horizon


If split horizon is enabled, neither autosummary nor interface summary addresses (those configured with the ip summary-address rip command) are advertised.

Related Commands:

ip split-horizon RIP

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