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From: David Cannings <lists@edeca.net>
To: netfilter@lists.netfilter.org
Subject: Re: iptables dnat to loopback
Date: Sun, 8 Aug 2004 09:41:38 +0100	[thread overview]
Message-ID: <200408080941.38256.lists@edeca.net> (raw)
In-Reply-To: <1091945878.12669.0.camel@localhost>

On Sunday 08 August 2004 07:17, Damian Gatabria wrote:
> :o( no luck.
> I even tried -F ing INPUT, FORWARD, OUTPUT, PREROUTING and POSTROUTING
> before adding the rule, (all policies set to ACCEPT) and still no luck!
> Forwarding is enabled,
> net.ipv4.conf.all.forwarding = 1
> net.ipv4.ip_forward = 1
> and still the packets are going nowhere... however giving
> the loopback an alias with an ip address of, say, 200.136.136.136
> works... so why can't I route to 127.0.0.x? Is there anything
> else I should check/add?

You can't send packets from non 127/8 addresses to 127/8.  The kernel 
filters them out and drops them as it considers them "martians".

David


  reply	other threads:[~2004-08-08  8:41 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-08-06 17:13 iptables dnat to loopback Jason Opperisano
2004-08-07 10:15 ` David Cannings
2004-08-08  6:17 ` Damian Gatabria
2004-08-08  8:41   ` David Cannings [this message]
2004-08-08 17:50     ` Alistair Tonner
2004-08-09 14:40       ` Damian Gatabria
2004-08-10  1:29         ` Damian Gatabria
  -- strict thread matches above, loose matches on Subject: below --
2004-08-06 12:48 Jason Opperisano
2004-08-06 11:38 Damian Gatabria
2004-08-06 11:54 ` Klemen Kecman

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