I usually do ingress acl on CE facing PE interfaces , that way I can provide one level of anti spoofing on IPs "I control" . I've not had the need for an egress ACL yet but then again I think it depends on network design and habits from Day 1.
One use case though may be to mitigate DDOS attack on a customer facing link. Sent from my iPhone On Jun 30, 2013, at 5:34 PM, Glen Kent <glen.k...@gmail.com> wrote: > Hi, > > Under what scenarios do providers install egress ACLs which could say for > eg. > > 1. Allow all IP traffic out on an interface foo if its coming from source > IP x.x.x.x/y > 2. Drop all other IP traffic out on this interface. > > Glen
