10 Sep
2017
10 Sep
'17
9:09 a.m.
Null-routing may not be sufficient, if the edge/border router has a route to that /128; the (forwardable) /128 entry will win from the blackholed /64 FIB entry since it is more-specific.
just thought about it a bit. As mentioned (in other post) I was thinking of a specific use case/setting, but wouldn't a static null-route (of a blackholed /64) win over a /128 learned from a RP anyway (given the better AD)? Am I missing sth here?
Longest prefix match wins. Steinar Haug, Nethelp consulting, sthaug@nethelp.no