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From: "Kristopher L. Bachtal" <kbachtal@gmail.com>
To: 'Mail List - Netfilter' <netfilter@vger.kernel.org>
Subject: IPSEC VPN Pass-Through/Nat-T Help Needed
Date: Mon, 22 Sep 2008 16:10:13 -0400	[thread overview]
Message-ID: <48D7FBA5.70402@gmail.com> (raw)

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Hello,

I have a Fedora Core 5 machine running kernel 2.6.20-1.2320 and
iptables/netfilter acting as a gateway/Nat for a private network to the
internet. I have several client machines (aprox. 10, Running Windows XP)
that are behind this router that need to create individual IPSec VPN
(Cisco IPSec Software Cleint)connections over the internet to a Cisco
VPN Concentrator (Diagram Below). I can only seem to get one client at a
time to work. If I try to start a second VPN connection from another
machine it connects to the VPN Concentrator but will not carry any data.
(i.e. Cant ping, traceroute, etc.) I'm thinking I need some type of
connection tracking kernel module for IPSec Connections (like
nf_conntrack_ftp but for Ipsec instead of FTP) but I cant find any
reference to one in the documentation or google searches that I have
done. Any help would be greatly appreciated.

Clients(10) -->	Gateway/Nat	--->	Internet  --->	Remote Network
(Windows XP)	(Fedora Core 5)				(Cisco VPN Box)
Private IP	Private IP / Public IP			Public IP		

Thank you,
Kristopher L. Bachtal
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             reply	other threads:[~2008-09-22 20:10 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-09-22 20:10 Kristopher L. Bachtal [this message]
2008-09-23  3:56 ` IPSEC VPN Pass-Through/Nat-T Help Needed Anton V. Antonenko
2008-09-23  4:40   ` Kristopher L. Bachtal

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