LevelOne GTL-2691 - Manual (Page 661)

C HAPTER 20 | Unicast Routing
Configuring the Routing Information Protocol
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Figure 413: Showing External Routes Redistributed into RIP
S PECIFYING AN
A DMINISTRATIVE
D ISTANCE
Use the Routing Protocol > RIP > Distance (Add) page to define an
administrative distance for external routes learned from other routing
protocols.
CLI R EFERENCES
◆ "distance" on page 1460
C OMMAND U SAGE
◆ 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.
◆ An access list can be used to filter networks according to the IP address
of the router supplying the routing information. For example, to filter
out unreliable routing information from routers not under your
administrative control.
◆ The administrative distance is applied to all routes learned for the
specified network.
P ARAMETERS
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.
◆ ACL Name – Name of the access control list. Any type of ACL can be
specified, including standard or extended IP ACLs and MAC ACLs.
(Range: 1-16 characters)