Windows Messenger for Exchange 2000 over VPN

[David]

We are using a Cisco VPN concentrator for our remote clients. The chat
works fine, but application sharing does not. From my reading, it appeared
that all communications was between the clients and the server on tcp port
80, and that the clients never communicated directly. This being the case,
I should not see this problem. What am i misssing?

The other odd thing that I am seeing is that the adding a new contact hangs
for a time if you are attached through the VPN, but it does eventually work.
Once thet VPN is up, the client machines should be able to connect to the AD
servers, as well as the mail server, so I am also not clear on what might
cause this problem.

[Jonathan Kay [MVP]]

Greetings David,

Actually, Application Sharing requires a direct connection between the two contacts, using
port 1503.
____________________________________________
Jonathan Kay
Microsoft MVP - Windows Messenger/MSN Messenger
Associate Expert
http://www.microsoft.com/windowsxp/expertzone/
Messenger Resources - http://messenger.jonathankay.com
All posts unless otherwise specified are (c) 2004 Jonathan Kay.
You *must* contact me for redistribution rights.


"David" > wrote in message
...
> We are using a Cisco VPN concentrator for our remote clients. The chat
> works fine, but application sharing does not. From my reading, it appeared
> that all communications was between the clients and the server on tcp port
> 80, and that the clients never communicated directly. This being the case,
> I should not see this problem. What am i misssing?
>
> The other odd thing that I am seeing is that the adding a new contact hangs
> for a time if you are attached through the VPN, but it does eventually work.
> Once thet VPN is up, the client machines should be able to connect to the AD
> servers, as well as the mail server, so I am also not clear on what might
> cause this problem.
>
>

[David]

If it is TCP port 1503, it should be available.
I am allowing all IP traffic, and rdp does work.

"Jonathan Kay [MVP]" > wrote in message
...
> Greetings David,
>
> Actually, Application Sharing requires a direct connection between the two
contacts, using
> port 1503.
> ____________________________________________
> Jonathan Kay
> Microsoft MVP - Windows Messenger/MSN Messenger
> Associate Expert
> http://www.microsoft.com/windowsxp/expertzone/
> Messenger Resources - http://messenger.jonathankay.com
> All posts unless otherwise specified are (c) 2004 Jonathan Kay.
> You *must* contact me for redistribution rights.
>
>
> "David" > wrote in message
> ...
> > We are using a Cisco VPN concentrator for our remote clients. The chat
> > works fine, but application sharing does not. From my reading, it
appeared
> > that all communications was between the clients and the server on tcp
port
> > 80, and that the clients never communicated directly. This being the
case,
> > I should not see this problem. What am i misssing?
> >
> > The other odd thing that I am seeing is that the adding a new contact
hangs
> > for a time if you are attached through the VPN, but it does eventually
work.
> > Once thet VPN is up, the client machines should be able to connect to
the AD
> > servers, as well as the mail server, so I am also not clear on what
might
> > cause this problem.
> >
> >
>
>