tree aead454110ed2accfaa3d6891d59c99c3cef0e04
parent edcc3b8945785cefd9ece0d760e8d278e45b7c3a
author Harald Welte <laforge@gnumonks.org> 1275055613 +0200
committer Harald Welte <laforge@gnumonks.org> 1275055613 +0200

[GPRS] NS: Respond to GRE keepalive messages

GRE has the strange notion of keepalive messages being encapsulated IPv4
packets adressed back to the sender.  Since we actually really only care
about frame relay, this is a bit strange.  However, we'll do some sanity
checks and send it back through our GRE socket...