From: Robert Nichols <rnicholsNOSPAM@comcast.net>
To: netfilter@lists.netfilter.org
Subject: Re: NATing on a single interface?
Date: Thu, 26 Oct 2006 10:45:08 -0500 [thread overview]
Message-ID: <ehql65$f08$1@sea.gmane.org> (raw)
In-Reply-To: <ehptuc$bo6$1@sea.gmane.org>
Philip Pemberton wrote:
> So what I'd like to do is have the DSL router forwarding to the
> firewall server, then have the firewall server do NATing and firewalling
> for the entire LAN subnet, all on a single interface. Is this doable, or
> do I really need to add another Ethernet interface?
There's no reason a forwarded packet can't go back out the same
interface on which it arrived. There's an obvious compromise in
security when you have both sides of the firewall on the same
physical network, but if you trust your own machines and just
want to protect against external attacks you should be OK as
long as the DSL router forwards packets to the firewall machine
only.
--
Bob Nichols Yes, "NOSPAM" is really part of my email address.
next prev parent reply other threads:[~2006-10-26 15:45 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-26 9:08 NATing on a single interface? Philip Pemberton
2006-10-26 15:45 ` Robert Nichols [this message]
2006-10-26 20:44 ` Philip Pemberton
2006-10-26 23:52 ` Robert Nichols
2006-10-27 9:09 ` Philip Pemberton
2006-10-27 14:40 ` Robert Nichols
2006-10-27 19:33 ` Port forwarding fun (was NATing on a single interface?) Philip Pemberton
2006-10-27 20:26 ` Philip Pemberton
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