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SBS2003 VPN RRAS loosing IP address

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  • SBS2003 VPN RRAS loosing IP address

    Problem:
    Our ADSL router has had to be replaced and after some reconfiguring of the hardware firewall we now have all services working again except for the VPN remote access.

    It seems that it will connect to the VPN ok but after about 30 seconds it will stop communicating with the internal network but the VPN tunnel stays connected.
    If you disconnect the VPN and re-connect it connects fine but there is no communication the the internal network still.
    After running the remote access wizard it will do the same. connect and work for 30 secs then stop.

    I have recently discovered a bit more information
    Under:
    Routing and Remote Access (Administrative Tools)
    {SERVERNAME} - IP Routing - General
    the interface named Internal seems to be the cause of my problem.

    After running the RRAS wizard the Internal interface shows that it has no IP address and that it is Administratively down and non-operational

    After connecting to the VPN the Internal interface then has an IP address which is consistent with the addressing of the internal network. At this point you can ping from Client-Server and Server-Client, this lasts about 30 seconds then stops. But the VPN tunnel stays connected, the Internal interface has changed it's IP address to an Automatically assigned address of 169.254.x.x

    Disconnecting and then re-connecting to the VPN has no effect and there is no communication as the IP address stays in this unwanted subnet.

    The only way to regain VPN access is to run the RRAS wizard or restart the RRAS Service. but again this is only momentarily and the Internal interface takes a unique 169.254 address every time I tried this.

    Any help would be appreciated.

  • #2
    Re: SBS2003 VPN RRAS loosing IP address

    I would re-run the CEICW followed by the Remote Access Wizard (on the To-Do List). If that doesn't fix it, post an IPCONFIG /ALL from the server to this forum.
    TIA

    Steven Teiger [SBS-MVP(2003-2009)]
    http://www.wintra.co.il/
    sigpic
    Iím honoured to have been selected for the SMB 150 list for 2013. This is the third time in succession (no logo available for 2011) that I have been honoured with this award.

    We donít stop playing because we grow old, we grow old because we stop playing.

    Comment


    • #3
      Re: SBS2003 VPN RRAS loosing IP address

      Hi, re-running the wizards has made no difference. I've done some IPconfigs though as below...


      IPConfig after RRAS service restart but before first VPN connection:


      Windows IP Configuration

      Host Name . . . . . . . . . . . . : trg-server
      Primary Dns Suffix . . . . . . . : xxx.co.uk
      Node Type . . . . . . . . . . . . : Unknown
      IP Routing Enabled. . . . . . . . : Yes
      WINS Proxy Enabled. . . . . . . . : Yes
      DNS Suffix Search List. . . . . . : xxx.co.uk
      co.uk

      Ethernet adapter Server Local Area Connection:

      Connection-specific DNS Suffix . :
      Description . . . . . . . . . . . : HP NC373i Multifunction Gigabit Server Ad
      apter
      Physical Address. . . . . . . . . : 00-1F-29-C6-29-BC
      DHCP Enabled. . . . . . . . . . . : No
      IP Address. . . . . . . . . . . . : 192.168.0.1
      Subnet Mask . . . . . . . . . . . : 255.255.255.0
      Default Gateway . . . . . . . . . : 192.168.0.253
      DNS Servers . . . . . . . . . . . : 192.168.0.1




      IPConfig during first VPN connection (in the first few seconds while it's still working)

      Windows IP Configuration

      Host Name . . . . . . . . . . . . : trg-server
      Primary Dns Suffix . . . . . . . : xxx.co.uk
      Node Type . . . . . . . . . . . . : Unknown
      IP Routing Enabled. . . . . . . . : Yes
      WINS Proxy Enabled. . . . . . . . : Yes
      DNS Suffix Search List. . . . . . : xxx.co.uk
      co.uk

      Ethernet adapter Server Local Area Connection:

      Connection-specific DNS Suffix . :
      Description . . . . . . . . . . . : HP NC373i Multifunction Gigabit Server Ad
      apter
      Physical Address. . . . . . . . . : 00-1F-29-C6-29-BC
      DHCP Enabled. . . . . . . . . . . : No
      IP Address. . . . . . . . . . . . : 192.168.0.1
      Subnet Mask . . . . . . . . . . . : 255.255.255.0
      Default Gateway . . . . . . . . . : 192.168.0.253
      DNS Servers . . . . . . . . . . . : 192.168.0.1

      PPP adapter RAS Server (Dial In) Interface:

      Connection-specific DNS Suffix . :
      Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
      Physical Address. . . . . . . . . : 00-53-45-00-00-00
      DHCP Enabled. . . . . . . . . . . : Yes
      Autoconfiguration Enabled . . . . : Yes
      Autoconfiguration IP Address. . . : 192.168.0.30
      Subnet Mask . . . . . . . . . . . : 255.255.255.255
      Default Gateway . . . . . . . . . :
      NetBIOS over Tcpip. . . . . . . . : Disabled



      IPConfig during first VPN connection (but after a few seconds when pings no longer reply)

      Windows IP Configuration

      Host Name . . . . . . . . . . . . : trg-server
      Primary Dns Suffix . . . . . . . : xxx.co.uk
      Node Type . . . . . . . . . . . . : Unknown
      IP Routing Enabled. . . . . . . . : Yes
      WINS Proxy Enabled. . . . . . . . : Yes
      DNS Suffix Search List. . . . . . : xxx.co.uk
      co.uk

      Ethernet adapter Server Local Area Connection:

      Connection-specific DNS Suffix . :
      Description . . . . . . . . . . . : HP NC373i Multifunction Gigabit Server Ad
      apter
      Physical Address. . . . . . . . . : 00-1F-29-C6-29-BC
      DHCP Enabled. . . . . . . . . . . : No
      IP Address. . . . . . . . . . . . : 192.168.0.1
      Subnet Mask . . . . . . . . . . . : 255.255.255.0
      Default Gateway . . . . . . . . . : 192.168.0.253
      DNS Servers . . . . . . . . . . . : 192.168.0.1

      PPP adapter RAS Server (Dial In) Interface:

      Connection-specific DNS Suffix . :
      Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
      Physical Address. . . . . . . . . : 00-53-45-00-00-00
      DHCP Enabled. . . . . . . . . . . : Yes
      Autoconfiguration Enabled . . . . : Yes
      Autoconfiguration IP Address. . . : 169.254.212.160
      Subnet Mask . . . . . . . . . . . : 255.255.0.0
      Default Gateway . . . . . . . . . :
      NetBIOS over Tcpip. . . . . . . . : Disabled

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