From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Salim" <salim.si@askey.com.tw>
Subject: PPTP/IPSec multiple clients behind iptables  NAT
Date: Fri, 23 Sep 2005 09:57:55 +0800
Message-ID: <001701c5bfe2$62013e90$205f030a@askeyrd3>
References: <1127361547.43322c0b7a8da@mail.sify.com>
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I am using iptables 1.3.3

I had some problems with multiple clients behind NAT(a simple MASQUERADE
rule is set) connecting to the same VPN server. ONly one client can connect
at a time.
I have enables the CONFIG_IP_NF_PPTP and CONFIG_IP_NF_CT_PROTO_GRE options
in kernel.

I have read a few posts about this issue in the list from as early as in
2003. But could not find a conclusion.

Could you guys please clarify? Is this scenario supported by iptables? If
not, is there a way to get around this issue?

thanks
Salim