3com 5500-ei pwr Reference Guide

 

5-8 

to", and the meaning of less-equal is "less than or equal to". The range is len <= greater-equal <= 

 <= 32. When only greater-equal is used, it denotes the prefix range [greater-equal, 32]. 

When only less-equal is used, it denotes the prefix range [len, less-equal]. When both greater-equal 
and less-equal are specified, the prefix range is [ less-equal,greater-equal ]. 

Use the ip ip-prefix command to configure an IP-prefix list or one of its entries. 

Use the undo ip ip-prefix command to delete an IP-prefix list or one of its entries. 

By default, no IP-prefix list is configured. 

An IP-prefix list is used for IP address filtering. An IP prefix list may contain several entries, and each 
entry specifies one address prefix range. The inter-entry filtering relation is OR. That is, passing an 
entry means filtering through this address prefix list. Not filtering through any entry means not filtering 
through this IP-prefix. 

The address prefix range may contain two parts, which are determined by len and [greater-equal, 

], respectively. If the prefix ranges of these two parts are both specified, the IP to be filtered 

must match the prefix ranges of these two parts. 

If you specify network len as 0.0.0.0 0, it matches the default route only. 

To match all the routes, use 0.0.0.0 0 less-equal 32. 

# Define an ip-prefix named p1 to permit only the routes whose mask lengths are 17 or 18 on network 
segment 10.0.192.0/8 to pass. 

<Sysname> system-view 

System View: return to User View with Ctrl+Z. 

[Sysname] ip ip-prefix p1 permit 10.0.192.0 8 greater-equal 17 less-equal 18 

 route-policy-name { permit | deny } node node-number 

 route-policy-name [ permit | deny | node node-number ] 

System view 

: Name of a routing policy, a string of 19 characters. This argument identifies a 

routing policy uniquely. 

: Specifies the match mode of the defined routing policy node as permit. When a route entry 

meets all the if-match clauses of the node, the entry is permitted to filter through the node and the apply 
clause of the node will be performed. If a route entry does not meet the if-match clause of the node, the 
next node of the route-policy will be tested. 

: Specifies the match mode of the defined Route-policy node as deny mode. When a route entry 

meets all the if-match clauses of the node, the entry is prohibited from filtering through the node and the 
next node will not be tested.