VPN behind WRT54GS in Win Xp Pro SP2

Discussion in 'Cisco/Linksys Wireless Routers' started by crjpilot, Apr 1, 2006.

  1. crjpilot

    crjpilot LI Guru Member

    Trying to set up a VPN behind at Linksys WRT54GS router, have the accounts made, port 1723 has been opened and forwarded to the local static IP of the server (my machine) and no success. My friend is getting error 800 when he tries to connect. I have SBC DSL with a dynamic IP (which he can ping) but it won't let him connect. VPN settings are all set to allow in router setup, and router has been updated to firmware v 4.70.6. Under the connection properties in Windows XP Pro, I have allowed caller to specify IP address and opened the range from to I even turned off the "block anonymous internet requests" checkbox in the router setup. Any suggestions would be appreciated.

    I can connect fine with my other machine (on the same LAN) but when he tries to connect over the internet is when we have a problem.
  2. jgutz20

    jgutz20 Network Guru Member

    im guessing its not an issue with the router, just to make sure you could put that VPN server in a DMZ. what are you using for a VPN server? can you connect to the VPN server from another local computer?
  3. crjpilot

    crjpilot LI Guru Member

    The server is just a windows XP pro machine, and I configured the VPN in Windows to accept incoming calls (VPN). We got it to connect once and were transferring files, then the client tried to open outlook to check his email and it crashed and since then we have not been able to get it to reconnect. I will try the DMZ thing and get back to you, thanks for the advice. I can connect with local machines.
  4. crjpilot

    crjpilot LI Guru Member

    Still no luck after putting my machine in the DMZ, any other ideas?
  5. Toxic

    Toxic Administrator Staff Member

    check with your ISP that they allow you to use the ports you want to. some ISPs block certain ports. i hope this is not the issue in your case however.
  6. crjpilot

    crjpilot LI Guru Member

    They are not blocking port 1723, which I have opened for the VPN.

    Here's what I found on their website:

    In response to a recently announced vulnerability attributed to computers running certain Microsoft Operating Systems, SBC Internet Services has blocked TCP ports 135, 139, 445 and 1025 for all basic dynamic subscribers nation wide. (These ports are no longer being blocked for static subscribers.) These ports are known to be used by worms and viruses to spread to other computers through the Internet. Blocking these ports may affect your ability to use:

    Microsoft Outlook to access a Microsoft Exchange server over the Internet
    File sharing over the Internet
    Print sharing over the Internet

    This action should not affect the vast majority of our members, and does not affect using Microsoft Outlook or other email programs over a local area network.

    The block is scheduled to begin on Thursday, April 29, 2004. Beginning at that time, you may notice that you are unable to continue the above activities over the Internet. Other uses of your Internet Access service will not be affected.

    How long will this port blocking last?

    With the cooperation of subscribers, and the use of anti-virus software and firewalls, we hope to have this issue contained in a relatively short period of time.

    Are there any workarounds?

    You may be able to work around port blocking. Some workarounds you may want to investigate include:

    Using Microsoft Outlook Web Access
    Using Microsoft point-to-point tunneling
    Using a Virtual Private Network (VPN)

    You may need assistance from a networking professional to set up these workarounds.
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