tree ed497f5f9c9f98dffe2957af0fdf17d61e433f60
parent 188bda621a83c34c56f771da15d4a8655637f5b9
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...