Chapter 19
| Unicast Routing
Configuring the Routing Information Protocol
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Figure 474: Showing External Routes Redistributed into RIP
Specifying an
Administrative
Distance
Use the Routing Protocol > RIP > Distance (Add) page to define an administrative
distance for external routes learned from other routing protocols.
Command Usage
â—† Administrative distance is used by the routers to select the preferred path when
there are two or more different routes to the same destination from two
different routing protocols. A smaller administrative distance indicates a more
reliable protocol.
â—† The administrative distance is applied to all routes learned for the specified
network.
Parameters
These parameters are displayed:
◆ Distance – Administrative distance for external routes. External routes are
routes for which the best path is learned from a neighbor external to the local
RIP autonomous system. Routes with a distance of 255 are not installed in the
routing table. (Range: 1-255)
◆ IP Address – IP address of a route entry.
◆ Subnet Mask – This mask identifies the host address bits used for associated
routing entries.
Web Interface
To define an administrative distance for external routes learned from other routing
protocols:
1. Click Routing Protocol, RIP, Distance.
2. Select Add from the Action list.
3. Enter the distance, the external route, and optionally enter the name of an ACL
to filter networks according to the IP address of the router supplying the
routing information.
4. Click Apply.
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