What port is used to login to Windows?

Posted on 2011-10-26
Last Modified: 2012-05-12
I have a site with no DC and users authenticate across a point-to-point VPN tunnel. I believe the port is being filtered by a piece of hardware and I need to know what port it is that I should be seeing in my packet capture. Any info would be helpful.
Question by:pamplinit
    LVL 57

    Expert Comment

    by:Mike Kline
    Look for 389, 3268, 88, 54, 445, list to look at here


    LVL 6

    Expert Comment

    The key to successful tunneling using PPTP is the ability of the ISPs involved to support Protocol 47 and Port 1723

    Accepted Solution

    I found out that a piece of Hardware - Link Load Balancer from Barracuda was filtering the ports. After a quick reboot I was then able to get through. Thank you for your help.

    Author Closing Comment

    Upgrades to software.

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