I just want send some information (logwatch) directly from firewall to my gmail. That secondary IP has a reverse name configured using the 201.xx.xx.4 IP. If i could send directly from firewall with this IP, It isn't necessary do any configuration on mail server.

I will read more about SNAT end try some changes.

Thanks!


On Tue, Apr 28, 2009 at 08:47, Ljubomir Ljubojevic <office@plcomputers.net> wrote:
Do you want firewall to act as secondary mail server?

Or would you accept to just send mails from firewall to your main mail
server, and let main mail server forward it to desired destination?

Answer to your question is to SNAT to secondary IP all traffic from
<Firewall> with source tcp port 25 to <Any>. Sorry, I do not have time
to check what exactly you have to enter to shorewall scripts.
Ljubomir

Bruno Ayub wrote:
> Hello!
>
> My firewall have the main IP and some alias on interface of Internet. I
> configure one of this alias whith IP of my mail server and use DNAT to
> communicate with LAN. I configure the masq file and the e-mails are
> sending with correct IP. Everything is working fine but...
>
> Now, I want my firewall also send e-mails with the same IP of alias. The
> firewall is send e-mails with the main IP of interface. I don't know
> where I do this configuration.
>
> Some information:
> Internet: eth0
> LAN: eth1
>
> Main IP: 201.xx.xx.2
> Alias (mail): 201.xx.xx.4
>
> masq file:
> eth0:1                  eth1            201.xx.xx.4    tcp     smtp
> eth0                    eth1
>
>
> Thanks a lot!
>
> [ ]'s
>
> --
> Bruno Ayub.
>
>
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Bruno Ayub.