Administrator Guide

– Two or more match clauses within the same route-map sequence have dierent match commands, matching a packet against
these clauses is a logical AND operation.
• If no match is found in a route-map sequence, the process moves to the next route-map sequence until a match is found, or there are
no more sequences.
• When a match is found, the packet is forwarded and no more route-map sequences are processed.
– If a continue clause is included in the route-map sequence, the next or a specied route-map sequence is processed after a match
is found.
Conguration Task List for Route Maps
Congure route maps in ROUTE-MAP mode and apply the maps in various commands in ROUTER RIP and ROUTER OSPF modes.
The following list includes the conguration tasks for route maps, as described in the following sections.
• Create a route map (mandatory)
• Congure route map lters (optional)
• Congure a route map for route redistribution (optional)
• Congure a route map for route tagging (optional)
Creating a Route Map
Route maps, ACLs, and prex lists are similar in composition because all three contain lters, but route map lters do not contain the permit
and deny actions found in ACLs and prex lists.
Route map lters match certain routes and set or specify values.
To create a route map, use the following command.
• Create a route map and assign it a unique name. The optional permit and deny keywords are the action of the route map.
CONFIGURATION mode
route-map map-name [permit | deny] [sequence-number]
The default is permit.
The optional seq keyword allows you to assign a sequence number to the route map instance.
Examples of Working with Route Maps
The default action is permit and the default sequence number starts at 10. When you use the keyword deny in conguring a route map,
routes that meet the match lters are not redistributed.
To view the conguration, use the show config command in ROUTE-MAP mode.
The following example shows viewing a congured route-map.
Dell(config-route-map)#show config
!
route-map dilling permit 10
Dell(config-route-map)#
You can create multiple instances of this route map by using the sequence number option to place the route maps in the correct order.
The system processes the route maps with the lowest sequence number rst. When a congured route map is applied to a command, such
as
redistribute, trac passes through all instances of that route map until a match is found. The following is an example with two
instances of a route map.
Dell#show route-map
route-map zakho, permit, sequence 10
Match clauses:
Set clauses:
140
Access Control Lists (ACLs)