Date: Fri, 23 Mar 2007 12:50:43 +0100 From: Andre Albsmeier <Andre.Albsmeier@siemens.com> To: freebsd-pf@freebsd.org Subject: 6.2-STABLE: enc0 sees only outgoing packets in pf Message-ID: <20070323115043.GA6991@curry.mchp.siemens.de>
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[Retrying on -pf...] (This is FreeBSD 6.2-STABLE as of yesterday using pf and FAST_IPSEC.) Yesterday I started to play around with enc0 in pf. I hoped I could now control IPSEC traffic in the standard way with pf rules but it seems that only outgoing packets hit enc0. I added a pass quick log on enc0 all on top of all pf rules. When sending a single ping packet to the remote side everything works but the only thing I see is Mar 18 10:20:11 <local0.warn> gate pflogd: @0 pass out enc0 ICMP 192.168.164.81 -> 10.0.1.32 8 (echo) (192.168.164.81 is my local gif0 address and 10.0.1.32 the remote). However, when running a tcpdump on enc0 we see the answer as well: listening on enc0, link-type ENC (OpenBSD encapsulated IP), capture size 1550 bytes 10:20:11.475041 (authentic,confidential): SPI 0x50521518: IP A.B.C.D > E.F.G.H: IP 192.168.164.81 > 10.0.1.32: ICMP echo request, id 3631, seq 0, length 64 (ipip-proto-4) 10:20:11.560430 (authentic,confidential): SPI 0x0cf2344e: IP E.F.G.H > A.B.C.D: IP 10.0.1.32 > 192.168.164.81: ICMP echo reply, id 3631, seq 0, length 64 (ipip-proto-4) (A.B.C.D is my local gif0 tunnel endpoint and E.F.G.H the remote). Just to make things clear: IPSEC works (as it did for years), I'm just not able to control the incoming packets with enc0 in pf. Any ideas? Thanks, -Andre
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