Re: VPN with Exchange issue

setup the vpn such as there is a dedicated tunnel for the ip address of
the exchange server (and leave the rest for other access), this should
install, in theory a host route for exchange server to the virtual
adapter and make the problem less lickely to occur due to routing
problem. I only make asumption that the shiva client works as most of
it's conterparts, beeing by installing a virtual adapter.

On Tue, Nov 30, 2004 at 08:14:29PM -0500, Dube, Paul wrote:
> Greetings all,
> I have a client that is presenting me with a new issue for which I do 
> not yet have all the facts. I will be on site tomorrow and hope to at 
> least get those. However, from what I have gathered so far, they are 
> using Outlook and Exchange with a custom developed application using 
> public folders. The data in the public folders must be available when 
> not connected so it must use the 'available offline' aspect of that 
> combination.
> I am not completely familiar with Outlook/Exchange but I believe that 
> this synchronization of content only transpires when using the native 
> connect mode which is not commonly available without a VPN. My client is 
> using the Shiva VPN client to connect to the LAN and access the Exchange 
> server. The issue arises when they are in a hotel or other location with 
> a LAN in the same subnet (192.169.1.255) and there is a machine on the 
> LAN at the same IP address as the exchange server on the corporate LAN.
> I am wondering if simply putting the Exchange server on an IP unlikely 
> to be assigned to a machine on another LAN, using a reserved address and 
> 1-1 NAT, or routing the connection over an SSH redirect would be a 
> workable solution. I am also wondering if the issue only arises due to 
> an oversight in initial implementation and the Shiva VPN can be 
> configured to route all requests on the specified ports over the VPN to 
> a remote machine, ignoring any local machine with the same IP address.
> 
> Thank in advance,
> Paul Dube
> 	
> Paul Dube <[email protected]>

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  I think that God in creating Man somewhat overestimated his ability.
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