C
Chris
Quick background: one Windows XP SP2 station behind a dsl modem and
stateful firewall using Outlook 2003 connecting over a VPN to the main office
Exchange 2003 SP2 server.
When Outlook 2003 goes ot establish a connection to the server, I can see it
fire up port 135, a local udp port to * (new mail listener I assume?). It
then tries to set up two more ports (send and receive I assume) which seem to
establish their connection to a port on the remote server and then close,
open the next ephemeral port and close and so on. This will use up over 200
ports.
A real world example is I open Outlook in cached mode, Inbox appears.
Compose an e-mail, click Send and it hangs for a long time. During this long
time is when the port issue above is happening. Eventually it goes through
but we're talking a couple minutes. Once it does go through, subsequent
attempts are fine until I close and open Outlook again in which case the same
hang occurs.
Any ideas? Port 135 is open throughthe firewall. If it was a closed port
then I would never succeed in making a connection.
stateful firewall using Outlook 2003 connecting over a VPN to the main office
Exchange 2003 SP2 server.
When Outlook 2003 goes ot establish a connection to the server, I can see it
fire up port 135, a local udp port to * (new mail listener I assume?). It
then tries to set up two more ports (send and receive I assume) which seem to
establish their connection to a port on the remote server and then close,
open the next ephemeral port and close and so on. This will use up over 200
ports.
A real world example is I open Outlook in cached mode, Inbox appears.
Compose an e-mail, click Send and it hangs for a long time. During this long
time is when the port issue above is happening. Eventually it goes through
but we're talking a couple minutes. Once it does go through, subsequent
attempts are fine until I close and open Outlook again in which case the same
hang occurs.
Any ideas? Port 135 is open throughthe firewall. If it was a closed port
then I would never succeed in making a connection.