Alexander Motin 575573fb08 Check for infinite recursion possible on some broken PPTP/L2TP/... VPN setups.
Mark packets with mbuf_tag on first interface passage and drop on second.

PR:		ports/129625, ports/125303,
MFC after:	2 weeks
2009-01-20 22:26:09 +00:00
..
2008-12-13 22:26:24 +00:00
2008-03-04 11:10:54 +00:00
2008-09-03 18:17:45 +00:00
2008-11-22 16:55:55 +00:00
2008-09-21 07:33:33 +00:00