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RD fails through VPN (Win2008&Cisco ASA)

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  • RD fails through VPN (Win2008&Cisco ASA)

    I have a problem with Remote Desktop, Windows 2008 DC and Cisco ASA VPN.

    I have a core network 10.0.0.0 with PC and servers .
    I have an X server (10.0.0.100) which runs on Win2008 and VMWARE Server with virtual machines configured on secondary network 172.16.0.0, and there is a DC (172.16.0.10).
    I have a Cisco ASA prepared to give VPN access to users outside the company.

    Inside the core network I can access to the DC using Remote Desktop without any problems.

    Inside the VPN I can access through Remote Desktop to any server on the core network without any problems.

    But inside the VPN cannot access through RD to any secondary servers, and specifically to DC, but I can ping the DC and the remote user and vice versa, or use VNC, without any problem, or make "Telnet 172.16.0.10:3389" perfectly.

    Notice that the DC request the credentials through RD and if I wrote bad the login and password I receive an error message at the momment.

    If I check the log of the DC that there are a lot of repeated events:

    4776 Crediential Validator
    4648 Logon Attempted
    4624 Successfully Logon
    4672 Special logon
    4648 Logon Attempted
    4624 Successfully Logon
    4648 Logon Attempted
    4624 Successfully Logon
    4672 Special logon

    until it finally cancel the connection after 2 minutes.

    In the same way, when I look the log of the DC when the RD works from a PC from the core network (not using VPN) I can recognize two differences:

    4776 Crediential Validator
    4648 Logon Attempted
    4624 Successfully Logon
    4672 Special logon
    4768 Kerberos Authentication Ticket !!!
    4769 Kerberos Service Ticket !!!


    Any help / suggestions are greatly appreciated.

    Thanks.
    Last edited by onlyamd; 8th February 2009, 02:17.
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