From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org)
	by finch.gentoo.org with esmtp (Exim 4.60)
	(envelope-from <gentoo-user+bounces-115551-garchives=archives.gentoo.org@lists.gentoo.org>)
	id 1P4V9U-0007V2-My
	for garchives@archives.gentoo.org; Sat, 09 Oct 2010 08:51:38 +0000
Received: from pigeon.gentoo.org (localhost [127.0.0.1])
	by pigeon.gentoo.org (Postfix) with SMTP id A2A5DE06BE;
	Sat,  9 Oct 2010 08:50:25 +0000 (UTC)
Received: from mail-wy0-f181.google.com (mail-wy0-f181.google.com [74.125.82.181])
	by pigeon.gentoo.org (Postfix) with ESMTP id 64AF9E06BE
	for <gentoo-user@lists.gentoo.org>; Sat,  9 Oct 2010 08:50:25 +0000 (UTC)
Received: by wyf22 with SMTP id 22so951722wyf.40
        for <gentoo-user@lists.gentoo.org>; Sat, 09 Oct 2010 01:50:24 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=gamma;
        h=domainkey-signature:mime-version:received:received:in-reply-to
         :references:date:message-id:subject:from:to:content-type;
        bh=nretBgprpT0p0aCIDZIR1hURhl7qBQsgm/lZNFrrXxw=;
        b=lw1ayRyeprhgkG8eMqWjKqytsyruraUAOTemeoycIqErXGOAFKVy/EXZrzDq/ZUKNw
         K4Hcw07oamOOEBvM3nANTs82ejIN8PYFA3KA2+19NvddQx+TvV7oda3BkDjEAWPuvqxO
         NI7T1lLcybYjO3bdpxHPsaVco3QRGrEB8VCu0=
DomainKey-Signature: a=rsa-sha1; c=nofws;
        d=gmail.com; s=gamma;
        h=mime-version:in-reply-to:references:date:message-id:subject:from:to
         :content-type;
        b=U5Xe6vBVbrSrg4Fl8U2bLlMML9tRclARbR7YTNXdmImcmRYVkGYbVKx47oMBJLXoFH
         8r1+KdNSsoE20zK8gfIJiyxYEExSyV6waGHTPlQqNKvL5n03nQQRBICEEGve20D84fFR
         CoXz3F5TSZD4nM8ZM8zt5J+9FTz6GjrpUMmwU=
Precedence: bulk
List-Post: <mailto:gentoo-user@lists.gentoo.org>
List-Help: <mailto:gentoo-user+help@lists.gentoo.org>
List-Unsubscribe: <mailto:gentoo-user+unsubscribe@lists.gentoo.org>
List-Subscribe: <mailto:gentoo-user+subscribe@lists.gentoo.org>
List-Id: Gentoo Linux mail <gentoo-user.gentoo.org>
X-BeenThere: gentoo-user@lists.gentoo.org
Reply-to: gentoo-user@lists.gentoo.org
MIME-Version: 1.0
Received: by 10.216.153.140 with SMTP id f12mr1537880wek.111.1286614215996;
 Sat, 09 Oct 2010 01:50:15 -0700 (PDT)
Received: by 10.216.21.141 with HTTP; Sat, 9 Oct 2010 01:50:15 -0700 (PDT)
In-Reply-To: <AANLkTimpt2tG479XK6301_DgaynQUDXwyYrPw2meNHGk@mail.gmail.com>
References: <AANLkTimCM5GOqobaD6n3e_EGWVAc8rucf3ZhzyptZx0y@mail.gmail.com>
	<83278B16-B7CE-4C16-8695-08F4E4051690@stellar.eclipse.co.uk>
	<AANLkTikwapbW+SPcUSEk3Bxfd-ykX7otG34fMmsdd=5J@mail.gmail.com>
	<3F408658-08E1-4D30-A7DA-4663CFEEC9B3@stellar.eclipse.co.uk>
	<AANLkTingSzBTDKbFr29YoQ1nmLwhwe6aB7L3Noz+PPJC@mail.gmail.com>
	<810692.43662.qm@web51906.mail.re2.yahoo.com>
	<6618B87A-60A7-493B-BD8D-83C45B9305BA@stellar.eclipse.co.uk>
	<AANLkTimpt2tG479XK6301_DgaynQUDXwyYrPw2meNHGk@mail.gmail.com>
Date: Sat, 9 Oct 2010 19:50:15 +1100
Message-ID: <AANLkTi=jRyKeKKcuz4+8j06jjewb_KqDRW549inrZ_4W@mail.gmail.com>
Subject: Re: [gentoo-user] IP aliasing problem
From: Adam Carter <adamcarter3@gmail.com>
To: gentoo-user@lists.gentoo.org
Content-Type: multipart/alternative; boundary=0016e65b54dc4ebce504922b3757
X-Archives-Salt: 1d3ab470-0959-4777-bc1e-e2efb809f237
X-Archives-Hash: abad6baeb5568efc9a6f2e04eff9a10b

--0016e65b54dc4ebce504922b3757
Content-Type: text/plain; charset=ISO-8859-1

> > The same TX & RX are shown for both interfaces.
>

That implies that they are layer 2 counters and will therefore be the same
for a given physical interface.

> I don't know whether the tools have changed much since those I'm using on
> this box, but the difference *might* be that Grant's IPs are on the same
> subnet. I *think* it's possible for the route (as in: `man route`) to
> configure packets that come in on 1.2.3.2 to be replied to via 1.2.3.1.
>

If the return packets are part of the same TCP session it will automatically
be sent from the correct IP address. If it didnt, the remote end wouldnt
consider the return packets part of the same session and reject them.

--0016e65b54dc4ebce504922b3757
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

<br><div class=3D"gmail_quote"><blockquote class=3D"gmail_quote" style=3D"m=
argin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); paddin=
g-left: 1ex;">
&gt; The same TX &amp; RX are shown for both interfaces.<br></blockquote><d=
iv>=A0<br>That implies that they are layer 2 counters and will therefore be=
 the same for a given physical interface.<br><br></div><blockquote class=3D=
"gmail_quote" style=3D"margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rg=
b(204, 204, 204); padding-left: 1ex;">

&gt; I don&#39;t know whether the tools have changed much since those I&#39=
;m using on this box, but the difference *might* be that Grant&#39;s IPs ar=
e on the same subnet. I *think* it&#39;s possible for the route (as in: `ma=
n route`) to configure packets that come in on 1.2.3.2 to be replied to via=
 1.2.3.1.<br>
</blockquote><div><br>If the return packets are part of the same TCP sessio=
n it will automatically be sent from the correct IP address. If it didnt, t=
he remote end wouldnt consider the return packets part of the same session =
and reject them.<br>
<br>=A0<br></div></div><br>

--0016e65b54dc4ebce504922b3757--