netdev - Re: Configure ICMP error source address

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Message-ID: <56C196AB.5080403@heinlein-support.de>
Date:	Mon, 15 Feb 2016 10:13:15 +0100
From:	Robert Sander <r.sander@...nlein-support.de>
To:	netfilter@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: Configure ICMP error source address

On 08.01.2016 10:31, Robert Sander wrote:

> We have the situation that our routers use RFC1918 addresses on their
> transfer networks (which should be quite common nowadays to save on
> public IPv4 addresses). ICMP errors are generated with RFC1918 source
> addresses and therefor never reach the original sender.

A follow-up to this request:

It is much easier to accomplish when settings routes with a source
address that is a public IP like this:

ip route add default via 10.10.10.1 src 192.0.2.24

ICMP errors will then use 192.0.2.24 as the source address.

No need for a kernel patch. Thanks for all the input.

Regards
-- 
Robert Sander
Heinlein Support GmbH
Schwedter Str. 8/9b, 10119 Berlin

http://www.heinlein-support.de

Tel: 030 / 405051-43
Fax: 030 / 405051-19

Zwangsangaben lt. §35a GmbHG:
HRB 93818 B / Amtsgericht Berlin-Charlottenburg,
Geschäftsführer: Peer Heinlein -- Sitz: Berlin

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