MSN messenger behind a Firewall

Discussion in 'Windows MSN Messenger' started by Daniel Camps, Dec 1, 2004.

  1. Daniel Camps

    Daniel Camps Guest

    I have a Linux box with a Firewall and behind windows clients aiming to use
    MSN messenger, I am using NAT so the LAN has private IP's, I just want to
    allow the instant messaging services, I don't care by now about the file and
    video/voice transfers.

    Which rules should I configure in the Firewall ?
    I checked a Windows XP SP2 firewall configured to let MSN messenger go
    through and it was allowing the following ports:

    TCP->8653 and UDP->8661

    I tried with these ports and it didn't work, I cheked in the Internet and I
    found out that instant messaging uses 1863 and TCP, I tried with this but it
    didn't work either. So does anybody know which ports to configure and how
    (which direction) ?

    Thanks a lot !
     
    Daniel Camps, Dec 1, 2004
    #1
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  2. Greetings Daniel,

    The Windows XP firewall blocks incoming connections only; what you're seeing open in the
    firewall is for voice/video conversations (and uses random ports from 5004-65535 UDP).

    The only ports required for basic services are outgoing 1863 or 80 and 443 (all TCP)

    All posts unless otherwise specified are (c) 2004 Jonathan Kay.
    You *must* contact me for redistribution rights.
     
    Jonathan Kay [MVP], Dec 1, 2004
    #2
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  3. Daniel Camps

    Daniel Camps Guest

    Thank you very much, what I was missing was the SSL (443) and this is why I
    couldn't log in.

    Best Regards
     
    Daniel Camps, Dec 1, 2004
    #3
  4. Hi Daniel,

    Glad to be of assistance =)

    All posts unless otherwise specified are (c) 2004 Jonathan Kay.
    You *must* contact me for redistribution rights.
     
    Jonathan Kay [MVP], Dec 1, 2004
    #4
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