BCP38 and Access Layer Filtering

BCP 38: http://tools.ietf.org/html/bcp38

Solved with:

ip verify unicast source reachable-via rx

Customer/Access Layer Filtering Template:

ip verify unicast source reachable-via [rx|any]

Note that on certain platforms like ASR9000 for example there is a limited number of uRPF strict rules in search memory.