Accept router solicit messages, block router advertisements.
Accept router solicit messages, block router advertisements.

As a router, clients send us RS packets and we respond with
RA packets.  This worked before because there's a periodic
RA broadcast anyway.

neiljerram/felix,matthewdupre/felix,neiljerram/felix,kasisnu/calico,alexhersh/calico,ocadotechnology/calico,TrimBiggs/calico,Metaswitch/calico,beddari/calico,neiljerram/felix,TrimBiggs/calico,alexhersh/calico,ocadotechnology/calico,matthewdupre/felix,anortef/calico,Metaswitch/calico,kasisnu/calico,beddari/calico,anortef/calico,neiljerram/felix