From mboxrd@z Thu Jan  1 00:00:00 1970
From: Kim Jensen <kimj@dawn.dk>
Subject: Re: SSH and NAT
Date: Mon, 24 Mar 2003 23:14:13 +0100
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To: James O'Gorman <james@netinertia.co.uk>, netfilter@lists.netfilter.org

On Monday 24 March 2003 21:36, James O'Gorman wrote:
> What I thought, was if I set up box1.domain.com and box2.domain.com as =
A
> records of my external IP with my ISP, then get iptables to read
> 'box1.domain.com' from a string in the header it might work, but
> obviously not. Does the IP packet header only contain IP, or address as
> well?
>
The IP packet only contain some primitive information - if you wish to de=
al=20
with names, then you have to use DNS. You can't store the name informatio=
n in=20
the packet header.

I can recommend that you read about IP headers if you wish to know more a=
bout=20
the construction of these magic little packets :-)

/Kim