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Re: [FW-1] Static NAT Question


  • To: [email protected]
  • Subject: Re: [FW-1] Static NAT Question
  • From: Lars Troen <[email protected]>
  • Date: Tue, 4 Jun 2002 23:44:15 +0200
  • Reply-to: Mailing list for discussion of Firewall-1 <[email protected]>
  • Sender: Mailing list for discussion of Firewall-1 <[email protected]>
  • Thread-index: AcIL8a5wZ9DAhftPQCysSYgilgd0CAAHsuiQ
  • Thread-topic: Re: [FW-1] Static NAT Question

The answer here would be yes. But if you have different domains for each of these mail servers, you could as well use firewall-1's smtp proxy. You could make one resource for each server pointing one domain to each of the mail servers. I have done this before and it works well. It can also be used to point individual mail boxes to a specific server.

Lars

> -----Original Message-----
> From: Jim Parker [mailto:[email protected]]
> Sent: Tuesday, June 04, 2002 19:39
> To: [email protected]
> Subject: Re: [FW-1] Static NAT Question
>
>
> Could the answer be to use static nat to one smtp host such
> as mailsweeper
> and then use individual private addressing on the internal
> mail servers? The
> mailsweeper (or something similar) could forward mail to the correct
> internal domains?
>
> Just an idea
>
>
> jp
>
>
>
> > -----Original Message-----
> > Subject: Re: [FW-1] Static NAT Question
> >
> >
> > > If I have multiple mail servers on the internal network,
> > can they all share
> > > the same NAT'd external address?
> > >
> > > This is NT4, 4.1 SP5.
> > You could perform port address trnaslation, but since they
> > are all mail
> > servers, you would most likely want every server to be
> > uniquely accessible
> > on port 25. You can not do this with 1 address. Unless you
> > mean in some
> > sort of load balancing configuration. You could do this with connect
> > control, but MX weights through DNS is a better idea in that case.
> >
> > -Don
>
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