The router supports the auto-generation of IPv4 and IPv6 prefix list entries for BGP peers which are configured in the Base router or in VPRN services using the match-list apply-path filter. This capability simplifies the management of CPM filters to allow BGP control traffic from trusted configured peers only. By using the match-list apply-path, filter the operator can:
specify one or more regex expression matches per match list, including wildcard matches (".*")
mix auto-generated entries with statically configured entries within a match list
Additional rules are applied when using apply-path as follows:
Operational and administrative states of a specific router configuration are ignored when auto-generating address prefixes.
Duplicates are not removed when populated by different auto-generation matches and static configuration.
Configuration fails if auto-generation of an address prefix results in the filter policy resource exhaustion on a filter entry, system, or line card level.