The only module that allows specifying the from address is the omudpspoof module which can fake it per message

What is it you are trying to accomplish?

David Lang

On Tue, 18 Feb 2014, Andreas Mock wrote:

Date: Tue, 18 Feb 2014 12:15:02 +0000
From: Andreas Mock <[email protected]>
Reply-To: rsyslog-users <[email protected]>
To: rsyslog-users <[email protected]>
Subject: Re: [rsyslog] How to config the IP address of outgoing upd/tcp log
    messages

Hi Rainer,

your answer explains why I searched for a phantom in the documentation... ;-)

Thank you
Andreas Mock


-----Ursprüngliche Nachricht-----
Von: [email protected] 
[mailto:[email protected]] Im Auftrag von Rainer Gerhards
Gesendet: Dienstag, 18. Februar 2014 12:20
An: rsyslog-users
Betreff: Re: [rsyslog] How to config the IP address of outgoing upd/tcp log 
messages

On Tue, Feb 18, 2014 at 10:42 AM, Andreas Mock <[email protected]>wrote:

Hi David,

thank you for your answer.

a) Yes, I meant the source IP of the outgoing log packet.
b) Do I understand it right that there is no way to influence
which IP is taken in the case there are two equivalent (in the
sense of routing) IP adresses? A kind of explicit binding?


I think it's not implemented. Maybe in the current versions.

Rainer


Best regards
Andreas Mock


-----Ursprüngliche Nachricht-----
Von: [email protected] [mailto:
[email protected]] Im Auftrag von David Lang
Gesendet: Dienstag, 18. Februar 2014 08:16
An: rsyslog-users
Betreff: Re: [rsyslog] How to config the IP address of outgoing upd/tcp
log messages

On Mon, 17 Feb 2014, Andreas Mock wrote:

Hi all,

after hours of debugging a problem (rsyslog 5.8.10) and searching the
docs and google
I'm totally frustrated and want to ask you the following:

- I want to send log messages out to a remote syslog server => no problem
- But I don't know how to tell the sending side to use a certain IP
address.
I have bound two IP addresses to one device and the IP address of the
alias and
NOT the main interface is taken.
- Can someone explain the rules which IP address is taken and how I can
influence it?

when you say "which IP address is taken" do you mean the source IP address
for
the packet?

If so, the answer is that unless you set things up otherwise with iptables
tricks, the source IP is going to be the IP of the interface picked by the
routing table to get to that destination, exactly the same way that the
source
IP would be selected for SSH, your web browser, or just about every other
piece
of software on your system.

David Lang

Some information:
- 'uname -n' is "test"
- host "test" resolves to  main ip
- host "main ip" resolves to "test.full.domain"
- hostname resolves to "test"
- hostname -d resolves to "full.domain"



Best regards
Andreas Mock

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