I'm working to configure route map to set high preferance for a specific subnet. I want to ensure the same routemap should not filter the other subnet routing advertisements. As far as I know route-map is like ACL,by default will there be explicit deny at the end of the route-map?
neighbor 10.0.0.2 route-map set-local-pref-on-routes-from-DMZ-Firewall in
Yes, there is deny at the end if the traffic does not match the ACL.
Have a look:
Each ACL ends with an implicit deny statement, by design convention; there is no similar convention for route-maps. If the end of a route-map is reached during matching attempts, the result depends on the specific application of the route-map. Fortunately, route-maps that are applied to redistribution behave the same way as ACLs: if the route does not match any clause in a route-map then the route redistribution is denied, as if the route-map contained deny statement at the end.
create a deny seq 5 in your route map which matches all the subnets which u do not want to be processed for this change and follow that with a permit seq 10 which matches the ip address you are after for this change. that will do it for you.
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