To configure RIP:
These timers allows you to vary the frequency with which updates are sent and when routes expire.
The Add Interface window opens
Option |
Description |
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Update Interval |
The amount of time, in seconds, between regularly scheduled RIP updates. To prevent synchronization of periodic updates, RIP updates are actually sent at a time from the uniform distribution on the interval (0.5T, 1.5T) where T is the Update Interval value. Note - Be careful when you set this parameter, because RIP has no protocol mechanism to detect misconfiguration.
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Expire Interval |
The amount of time, in seconds, that must pass with no update for a given route before the route is considered to have timed out. This value must be 6 times the update interval before the network drops packets which contain an update.
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Auto Summarization |
Automatically aggregates and redistributes non-classful RIP Version 1 into RIP. This applies only to RIP Version 1. If you do not select the Auto summarization field option, you must use route aggregation and route redistribution and do the aggregation and redistribution manually. Note - Be careful when you set this parameter, because RIP has no protocol mechanism to detect misconfiguration.
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Option |
Description |
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Interface |
The interface on which RIP is enabled. |
Version |
The version of RIP to run. If you enter version 2, the default is to send full version 2 packets on the RIP multicast address.
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Metric |
The RIP metric to add to routes that are sent with the specified interface(s). The default is zero. This is used to make other routers prefer other sources of RIP routes over this router.
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Accept updates |
Defines if RIP packets from other routers which use the interface are accepted or ignored. Ignoring an update may result in suboptimal routing.
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Send updates |
Defines if RIP packets are sent through the interface. This causes the interface to be a passive RIP listener.
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Virtual Address |
Make RIP run only on the VRRP Virtual IP address related to this interface. If this router is not a VRRP Master then RIP does not run if this option is selected. It only runs on the VRRP Master. Note - You must use Monitored Circuit mode when you configure VRRP to work with virtual IPs, and when you configure virtual IP support for a dynamic routing protocol, including RIP.
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Transport |
Selecting Multicast specifies that RIP version 2 packets should be multicast on this interface. This is the default.
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Authentication Type |
The type of authentication scheme to use for the link. This option applies to rip version 2 only. In general, routers on a given link must agree on the authentication configuration in order to form neighbor adjacencies. This is used to guarantee that routing information is accepted only from trusted routers.
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