790 BigIron RX Series Configuration Guide53-1001986-01Filtering26The seq parameter is optional and specifies the IP prefix list’s sequence number. Ifyou do not specify a sequence number, the software numbers them in increments of 5, beginningwith prefix list entry 5. The software interprets the prefix list entries in numerical order, beginningwith the lowest sequence number.The deny | permit parameter specifies the action the software takes if a neighbor’s route is in thisprefix list.The prefix-list matches only on this network unless you use the ge or le parameters. (See below.)The / parameter specifies the network number and the number of bitsin the network mask.You can specify a range of prefix length for prefixes that are more specific than/.• If you specify only ge , then the mask-length range is from to 32.• If you specify only le , then the mask-length range is from length to .The or you specify must meet the following condition.length < ge-value <= le-value <= 32If you do not specify ge or le , the prefix list matches only on the exactnetwork prefix you specify with the / parameter.For the syntax of the neighbor command shown in the example above, refer to “Configuring BGP4neighbors” on page 761 and “Configuring a BGP4 peer group” on page 768.Defining neighbor distribute listsA neighbor distribute list is a list of BGP4 address filters or ACLs that filter the traffic to or from aneighbor.To configure a distribute list that uses ACL 1, enter a command such as the following.BigIron RX(config-bgp)# neighbor 10.10.10.1 distribute-list 1 inThis command configures the device to use ACL 1 to select the routes that the device will acceptfrom neighbor 10.10.10.1.Syntax: neighbor distribute-list in | outThe parameter specifies the neighbor.The parameter specifies the name or number of a standard, extended, or namedACL.The in | out parameter specifies whether the distribute list applies to inbound or outbound routes.• in – controls the routes the device will accept from the neighbor.• out – controls the routes sent to the neighbor.
