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FTOS Configuration Guide for the C-Series - Force10 Networks

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For example, in Figure 243, remark 10 corresponds to rule 10 and as such <strong>the</strong>y have <strong>the</strong> same number<br />

be<strong>for</strong>e and after <strong>the</strong> command is entered. Remark 4 is incremented as a rule, and all rules have retained<br />

<strong>the</strong>ir original positions.<br />

Figure 243 Resequencing Remarks<br />

<strong>Force10</strong>(config-ext-nacl)# show config<br />

!<br />

ip access-list extended test<br />

remark 4 XYZ<br />

remark 5 this remark corresponds to permit any host 1.1.1.1<br />

seq 5 permit ip any host 1.1.1.1<br />

remark 9 ABC<br />

remark 10 this remark corresponds to permit ip any host 1.1.1.2<br />

seq 10 permit ip any host 1.1.1.2<br />

seq 15 permit ip any host 1.1.1.3<br />

seq 20 permit ip any host 1.1.1.4<br />

<strong>Force10</strong># end<br />

<strong>Force10</strong># resequence access-list ipv4 test 2 2<br />

<strong>Force10</strong># show running-config acl<br />

!<br />

ip access-list extended test<br />

remark 2 XYZ<br />

remark 4 this remark corresponds to permit any host 1.1.1.1<br />

seq 4 permit ip any host 1.1.1.1<br />

remark 6 this remark has no corresponding rule<br />

remark 8 this remark corresponds to permit ip any host 1.1.1.2<br />

seq 8 permit ip any host 1.1.1.2<br />

seq 10 permit ip any host 1.1.1.3<br />

seq 12 permit ip any host 1.1.1.4<br />

Route Maps<br />

Like ACLs and prefix lists, route maps are composed of a series of commands that contain a matching<br />

criterion and an action, yet route maps can change <strong>the</strong> packets meeting <strong>the</strong> criterion. ACLs and prefix lists<br />

can only drop or <strong>for</strong>ward <strong>the</strong> packet or traffic. Route maps process routes <strong>for</strong> route redistribution. For<br />

example, a route map can be called to filter only specific routes and to add a metric.<br />

Route maps also have an “implicit deny.” Unlike ACLs and prefix lists, however, where <strong>the</strong> packet or<br />

traffic is dropped, in route maps, if a route does not match any of <strong>the</strong> route map conditions, <strong>the</strong> route is not<br />

redistributed.<br />

Implementation In<strong>for</strong>mation<br />

The <strong>FTOS</strong> implementation of route maps allows route maps with no match command or no set command.<br />

When <strong>the</strong>re is no match command, all traffic matches <strong>the</strong> route map and <strong>the</strong> set command applies.<br />

<strong>FTOS</strong> <strong>Configuration</strong> <strong>Guide</strong>, version 7.7.1.0 357

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