Gre tunnel unable to Ping when cisco 7600 as a PE

Problem:- If you are using cisco 7600 as a PE router and configuring Vrf forwarding over GRE then you will be unable to ping CE side GRE tunnel ip from Remote PE.

Solution:-put a global command on Cisco 7600 PE "mls mpls tunnel-recir".

Cause:-Packet gets corrupted when it is received from CE back to PE, so conversion of IPv4 to MPLS doesn't happen.

IP precedence value over L2tpv3

To reflect ip precedence value over l2tpv3, you can use Ip tos reflect command under psuedowire configuration.

PE to CE eigrp flapping in mpls/vpn scenario

In this post i am explaining one case of Eigrp neighborship is flapping between PE to CE over L2tpv3 in MPLS VPN scenario, it could be the bug if you are using entservicesk9-mz.123-14.T5.bin IOS.

please find the attached scenario.