Reference Guide

Access Control Lists (ACLs) | 141

Configuring Route Map Filters

Within the ROUTE-MAP mode, there are match and set commands. Basically, match commands search

for a certain criterion in the routes and the

set commands change the characteristics of those routes, either

adding something or specifying a level.

When there are multiple match commands of the same parameter under one instance of route-map, then

FTOS does a match between either of those match commands. If there are multiple match commands of

different parameter, then FTOS does a match ONLY if there is a match among ALL match commands.

Refer to the following examples:

Example 1

In the above route-map, if a route has any of the tag value specified in the match commands, then there is a

match.

Example 2

In the above route-map, only if a route has both the characteristics mentioned in the route-map, it is

matched. Explaining further, the route must have a tag value of 1000 and a metric value of 2000. Only then

is there a match.

Also, if there are different instances of the same route-map, it is sufficient if a permit match happens in any

instance of that route-map. For example:

In the above route-map, instance 10 permits the route having a tag value of 1000 and instances 20 and 30

denies the route having a tag value of 1000. In the above scenario, FTOS scans all the instances of the

route-map for any permit statement. If there is a match anywhere, the route is permitted, though other

instances of the route-map denies it.

FTOS(conf)#route-map force permit 10