Windows Messenger over VPN thru ISA Server

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m_at_xp
Date: 12/22/04

  • Next message: Pete: "Error 21013 in Application Event Log" 
    Date: Wed, 22 Dec 2004 09:14:27 +0100

    Hi,
    I have a very strange problem using Windows Messenger with Exchange IM
    Messaging over a VPN thru our ISA Server (2000).
    The VPN is established using a software Cisco VPN client (v4.6) and it works
    fine for all application and services except for Windows Messenger: it seems
    that it connect correctly with the IM server on the other side of the VPN
    but when building the contact list the application hangs. Please note that
    if I run the VPN directly on the internet bypassing the ISA server Windows
    Messenger works correctly.
    Note that on the ISA server I've set the Protocols Definitions (and Protocol
    Rules) and the IP Packet Filters for UDP ports 500, 1701, 4500 and 10000
    (required by IPSec).
    Any hint?
    Thanks in advance.
    Ciao

  • Next message: Pete: "Error 21013 in Application Event Log"

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