RE: Question about MS Exchange and Smoothwall Express

At 02:52 PM 11/12/2004, Richard Doiron wrote:
>Hi,
>
>I have a need to set up Exchange 2003 on a private lan with users who need
>access to the Exchange server from both from the private lan and the
>internet. I have port forwarding set up so that a user can access the
>Exchange server fine from the internet using the public address of the
>Smoothwall. Similarly, users on the private lan get their Exchange fix
using
>the private address of the exchange server.
>
>The problem comes in with laptop users. If they set up their Exchange
>account to use the private lan address, when out of the office nothing
>works. If they set up the Exchange account to use the public address of the
>Smoothwall, being out of the office works, but when inside, the Smoothwall
>is discarding all packets (Martians?).
>
>The old setup used a Symantec  Firewall VPN 200r and it worked in this
>configuration.
>
>  Setting up an Orange segment is not feasible as the client only has one
box
>to run server and exchange.
>
>Any help would be appreciated.


There are various workarounds here. I have a mail server on orange but had
the same issues with regard to laptops. I ended up implementing the GREEN to
GREEN masq. mod as provided by Frank711 in this post:
http://community.smoothwall.org/forum/viewtopic.php?t=2871&postdays=0&postor
der=asc&start=15

This way, everyone uses the external IP of the mail server (both inside and
outside). The mod allows clients on GREEN to get to the mail server using
the RED  address. You should probably read the whole sticky that the above
link takes you to. You might find that one of the other methods provided is
more to your liking.

Regards,

Alistar Francis
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