IBGPLoopFilter is a BGPRouteFilter that drops routes that came to us from an IBGP peer. Typically it is used in a outgoing filter on a branch to another IBGP peer, and prevents routes coming from one IBGP peer from being forwarded to another IBGP peer.
| IBGPLoopFilter ()
|bool filter (InternalMessage<A>& rtmsg)
Reimplemented from BGPRouteFilter.