ip prefix-list PL-OUT seq 5 permit 192.168.1.0/24 le 32
ip prefix-list PL-OUT seq 10 permit 192.168.2.0/24 le 32
ip prefix-list PL-OUT seq 15 permit 192.168.3.0/24 le 32
ip prefix-list PL-OUT seq 20 permit 192.168.4.0/24 le 32
!
ip as-path access-list 10 permit ^$
!
route-map ActiveLink_Out permit 10
match as-path 10
set metric 1000
set community 65000:1
!
route-map ActiveLink_Out permit 15
match ip address prefix-list PL-OUT
set as-path prepend 65000
!
In this example, Please could someone clarify that the route-map will not move onto line 15.
If this is the case, how does the "route-map" know that within the permit ^$, all routes have been matched.
Say if the ACL 10 had permit _65000_ instead of permit all?
ip as-path access-list 10 permit _65000_
The route-map would continue to line 15? Correct?
Im a little confused with the logic and how it works?
Route maps have the following common characteristics:
-Route maps are executed in the order of the lowest sequence number to the highest.You
can edit or modify maps by using the sequence number.
-If a match is found within a route map instance,execution of further route map instances
stops.
-You can use route maps to permit or deny the information found true by the match
statements.
-If multiple match statements are called within a single route map instance,all match
statements must match for the route map instance to yield a true result.
-If route maps are applied in a policy-routing environment,packets that do not meet the
match criteria are then forwarded according to the route table.
-If there is no match statement in the route map instance,all routes and packets are
matched.The set statement will apply to all routes or packets.
-If there is not a corresponding ACL to the match statement in the route map instance,all
routes are matched.The set statement,in turn,applies to all routes.
-As with ACLs,an implicit deny is included at the end of the route map policy.
