Ok, I havent got linux mail server, I have MS :(
And I think that is more robust having 2 FW with 2 different ISP.
Well, the solution I test it and it works!!!
THANKS again
On Wed, Oct 22, 2008 at 3:41 PM, Tom Eastep <[EMAIL PROTECTED]> wrote:
> Nico Pagliaro wrote:
> > Ok, I will explain why I need this
> >
> > I have 2 ISP and 2 firewall and I want to have 2 MX records, one per
> > firewall/ISP
> > So, the map look like this
> >
> > ISP1/FW1
> > 192.168.0.1 <http://192.168.0.1>
> >
> >
> > LAN MailSrvr 192.168.0.110 <http://192.168.0.110>
> > (deafult gw 192.168.0.1 <http://192.168.0.1>)
> >
> > ISP2/FW2 192.168.0.4 <http://192.168.0.4>
> >
> >
> > The problem is that the Mail server have 1 default gw, 192.168.0.1
> > <http://192.168.0.1> and when a packet comes from ISP2 the mail server
> > return the packet to the ISP1 because the default gw. This happens
> > because the mail server receive a packet from a External IP, so the
> > connection SYN_SENT in my mail server is to a external IP.-
> > So, how can I fix it? I think that one solution is that all the
> > connection to the mail server thought FW1 or FW2 are masq with the
> > internal IP, in the situation the mail sevrer CAN return the packet to
> > the Internal IP.
>
> If the mail server is a Linux machine, you could run Shorewall-perl
> 4.2.0 on the mail server and use the new feature that allows two or more
> providers through a single interface (your two firewalls would be the
> two providers). Or you could use Shorewall multi-ISP support and only
> have one firewall that serves both ISPs.
>
> -Tom
> --
> Tom Eastep \ The ultimate result of shielding men from the
> Shoreline, \ effects of folly is to fill the world with fools.
> Washington, USA \ -Herbert Spencer
> http://shorewall.net \________________________________________________
>
>
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