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Date: Thu, 3 Nov 2011 16:52:58 +0100
From: Kurt Jaeger <pi@opsec.eu>
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Subject: fbsd 8.2, L2TP over IPsec and pf ?
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Hello,

I'm building a setup for incoming L2TP over IPsec connections
using FreeBSD 8.2-REL.

IPsec based on ports/security/ipsec-tools, the l2tp part
works from net/mpd5/.

If I disable the PF rules, everything works.

If I enable the PF rules, the IPsec connection still comes up,
but the L2TP requests are lost somewhere in the PF rules 8-(

Interestingly, tcpdump enc0 does not see any encrypted packets (!)
as long as the PF rules are active.

Any hints on the PF rules required to allow those packets in ?

Thanks!

-- 
pi@opsec.eu            +49 171 3101372                         9 years to go !