NetBSD Problem Report #41304
From root@girsa.ro Wed Apr 29 15:47:50 2009
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Date: Wed, 29 Apr 2009 18:30:04 +0300 (EEST)
From: mihai.chelaru@ngnetworks.ro
Reply-To: mihai.chelaru@ngnetworks.ro
To: gnats-bugs@gnats.NetBSD.org
Subject: ipnat and ipsec don't play togheter
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>Number: 41304
>Category: kern
>Synopsis: ipsec + ipnat don't work in some cases
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: kern-bug-people
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Wed Apr 29 15:50:00 +0000 2009
>Originator: Mihai Chelaru
>Release: NetBSD 5.0
>Organization:
>Environment:
OS: NetBSD 5.0
Architecture: i386
Machine: i386
>Description:
Using a gateway with the following setup:
2 NICs - one for inside, one for outside
NAT from inside to outside
IPSec tunnel mode between outside address and another network (NET_A)
See the following behaviour:
packets sent from local gateway to NET_A work as expected
packets sent from inside network are reaching NET_A as expected
packets sent from NET_A are reaching gateway but gateway is not willing to do NAT and forward them to the inside network
a TCP handshaking on gateway outside interface looks like this:
1. SYN sent
2. SYN/ACK received
3. RST sent
>How-To-Repeat:
>Fix:
>Unformatted:
(Contact us)
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