RE: Partial vs Full tables

[Brian Turnbow via NANOG <nanog () nanog org>]

Hi all,

> Loose mode RPF will essentially drop traffic received on the interface if the
> router does not have any route for. (will not match a default or a discard
> route, at least in IOS-XR)
>
> As Bill has pointed out, this may drop traffic from some peering networks that
> are not in the global routing table. Though one could argue that if a packet
> needs to be fragged it's typically closer to the edges rather than the
> transit/peering links.

No one has mentioned it , but you can also use an acl combined with urpf.
You could even go so far as permiting everything and just using urpf for rtbh purposes.


Brian