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Chapter 16: Dynamic Routing Protocols

STANDARD Revision 1.0 C4® CMTS Release 8.3 User Guide

The C4/c CMTS continues to support distribute-lists for filtering RIP IP prefixes that are redistributed into OSPF. The

CadPolicyAclTable MIB must be used when creating an ACL. The ACL defined must be a standard ACL (range 0-99).

Execution of this command will create an entry in the cadDistListOutTable. If the corresponding route redistribution

command has already been executed, then each entry in the ACL table will create an entry in the rtmRedistTable.

There must also be a "wildcard" match entry in the rtmRedistTable for either the "permit_all" or "deny_all" ACL case, with

the rtmRedistFlag set to AMB_TRUE or AMB_FALSE.

Note: The priority (rtmRedistPriority) must be set to a value greater than (implies lower priority) the more specific

matches.

For example:

configure access-list 10 deny 130.10.0.0 0.0.255.255

configure access-list 10 permit 0.0.0.0 255.255.255.255

configure router ospf [vrf <VRF>] distribute-list 10 out rip

Filtering Redistributed BGP Routes

To filter redistributed BGP routes, use the following commands:

configure router bgp [no] distribute-list ACL-NUM out static

configure router bgp [no] distribute-list ACL-NUM out connected

configure router bgp [no] distribute-list ACL-NUM out rip

configure router bgp [no] distribute-list ACL-NUM out ospf

configure router bgp [no] distribute-list ACL-NUM out isis

Although not specifically associated with route redistribution, the C4/c CMTS continues to support filtering IP routes based

on an egress interface. The existing CadPolicyAclTable MIB must be used when creating an ACL. The ACL defined must be a

standard ACL (range 0-99).