From: Chris Brenton <cbrenton@chrisbrenton.org>
To: patrick kuah <patrickkuah@msn.com>
Cc: netfilter@lists.netfilter.org
Subject: Re: VPN question
Date: 14 Oct 2003 13:45:40 -0400 [thread overview]
Message-ID: <1066153540.1322.11.camel@valhalla> (raw)
In-Reply-To: <BAY4-F42tUqsLKqewA30000cc37@hotmail.com>
On Tue, 2003-10-14 at 11:25, patrick kuah wrote:
> Thanks Chris :)
Glad to! :)
>
> I'm using ipsec. Currently, my iptables is configured using stateful packet
> inspection.
You still need to open the correct ports as well create the proper DNAT
and SNAT rules.
> Do i have to add the rules for port TCP/UDP 50 and TCP 50 ???
> Thank you :)
Here's what you need to open up:
1) IKE to and from your IPSec gateway. something like:
iptables -p udp -s 0/0 --sport 500 -d 192.168.1.10 --dport 500 -j ACCEPT
iptables -p udp -s 192.168.1.10 --sport 500 -d 0/0 --dport 500 -j ACCEPT
2) Protocol 50 (ESP) to and from the gateway
iptables -p 50 -d 192.168.1.10 -j ACCEPT
iptables -p 50 -s 192.168.1.10 -j ACCEPT
Again, make sure your clients are not negotiating Authentication Header
(AH). If you try the above and you log drops to protocol 51, AH is being
negotiated.
HTH,
C
next prev parent reply other threads:[~2003-10-14 17:45 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-14 15:25 VPN question patrick kuah
2003-10-14 17:45 ` Chris Brenton [this message]
-- strict thread matches above, loose matches on Subject: below --
2004-10-06 19:35 Sunny Shum
2004-10-06 19:58 ` Jason Opperisano
2003-10-14 10:19 patrick kuah
2003-10-14 10:44 ` Chris Brenton
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