Dell PowerSwitch S4820T 9.50.1 Configuration Guide for the S4820T System - Page 138

ip access-list extended test remark 4 XYZ remark 5 this remark corresponds to permit any host 1.1.1.1 seq 5 permit ip any host 1.1.1.1 remark 9 ABC remark 10 this remark corresponds to permit ip any host 1.1.1.2 seq 10 permit ip any host 1.1.1.2 seq 15 permit ip any host 1.1.1.3 seq 20 permit ip any host 1.1.1.4 Dell# end Dell# resequence access-list ipv4 test 2 2 Dell# show running-config acl ! ip access-list extended test remark 2 XYZ remark 4 this remark corresponds to permit any host 1.1.1.1 seq 4 permit ip any host 1.1.1.1 remark 6 this remark has no corresponding rule remark 8 this remark corresponds to permit ip any host 1.1.1.2 seq 8 permit ip any host 1.1.1.2 seq 10 permit ip any host 1.1.1.3 seq 12 permit ip any host 1.1.1.4 Route Maps Route maps are supported on S4820T platform. Similar to ACLs and prefix lists, route maps are composed of a series of commands that contain a matching criterion and an action; however, route maps can change the packets meeting the criterion. ACLs and prefix lists can only drop or forward the packet or traffic. Route maps process routes for route redistribution. For example, a route map can be called to filter only specific routes and to add a metric. Route maps also have an "implicit deny." Unlike ACLs and prefix lists; however, where the packet or traffic is dropped, in route maps, if a route does not match any of the route map conditions, the route is not redistributed. Implementation Information The Dell Networking OS implementation of route maps allows route maps with the no match or no set commands. When there is no match command, all traffic matches the route map and the set command applies. Important Points to Remember • For route-maps with more than one match clause: - Two or more match clauses within the same route-map sequence have the same match commands (though the values are different), matching a packet against these clauses is a logical OR operation. - Two or more match clauses within the same route-map sequence have different 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 specified route-map sequence is processed after a match is found. 138 Access Control Lists (ACLs)