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Another PPTP post

Discussion in 'DD-WRT Firmware' started by sufrano63, Jan 5, 2006.

  1. sufrano63

    sufrano63 Network Guru Member

  2. whatsthedeal

    whatsthedeal Network Guru Member

    it works fine for me.

    how are you trying to connect to the server?
     
  3. sufrano63

    sufrano63 Network Guru Member

    Well, I followed the wiki instructions to setup the PPTP server on the router, then use Windows XP VPN setup to connect

    http://www.onecomputerguy.com/networking/xp_vpn.htm

    I'm getting a 678 error (remote computer did not respond). My router is up and working because I'm currently connect to my router via ssh. I prefer ssh, but want it to get this working so my family can connect to my router.

    Thanks for any help you can provide.
     
  4. DoC_DaR

    DoC_DaR Network Guru Member

    Mine also works great. I set up exactly how the links you posted instructed. I'm using DD-WRT v23 as my PPTP server, a Windows XP Pro laptop as my client. occasionaly I am at a location with my laptop where PPTP trafic is blocked (port TCP 1723), but from most locations, I have no trouble connecting. Insure that the router was factory reset after firmware flash and that you know your WAN IP address. Mine is static. Hope this helps.
     
  5. sufrano63

    sufrano63 Network Guru Member

    My ISP provider is using DHCP, so I setup dyndns. I'm connecting using dyndns name instead of my WAN IP address. Do I need to forwarding port on top of configure as documented in the wiki?

    Thanks
     
  6. sufrano63

    sufrano63 Network Guru Member

    I'm at work and went to www.grc.com and checking to see if my office has the 1723 port open and its "closed".... :sad:

    Anyone know of a workaround?

    Thanks
     
  7. whatsthedeal

    whatsthedeal Network Guru Member

    something that i think is worth noting: in the windows xp vpn connection settings to use the remote network's gateway. i have to disable this for my connection to work.

    network connections->right click on the vpn->properties->networking tab->double click tcp/ip->click advanced->uncheck the box labled "use default gateway on remote network"

    hit ok on all the boxes related so that your settings are saved.

    i hope that helps with something.

    as far as going around the port 1723...ask your network administrator if you can get it opened.
     
  8. jpark

    jpark Network Guru Member

    Doesn't mean anything. I have my work and my home network set so that grc.com reports all ports closed.

    PPTP VPN is working with no problems at all.
     
  9. whatsthedeal

    whatsthedeal Network Guru Member

    that makes sense...grc.com is just saying you don't have something waiting for a connection on that port. i.e., if you had an ftp server on port 21, and scanned it, it would say port 21 was open. otherwise, it would return that it's closed.
     
  10. sufrano63

    sufrano63 Network Guru Member

    According to the author, he suggested try

    - enabled "loopback" in Administration/Management
    - disabled value in Security/VPN passtrough

    Thanks
     
  11. jpark

    jpark Network Guru Member

    Mine is set to use the default gateway on the remote network and it works fine. In fact, I want to use the gateway on the remote network when connecting to that network.
     
  12. whatsthedeal

    whatsthedeal Network Guru Member

    Hmmm weird. I thought it was a common problem...I'm wrong every now and again :(

    Just curious OP, what is the LAN ip of your router?
     
  13. jpark

    jpark Network Guru Member

    LAN IP of remote router 192.168.1.1, LAN IP of local router 10.18.86.1
     
  14. whatsthedeal

    whatsthedeal Network Guru Member

    i guess what i should have said was to make sure that the server ip field on the pptp server setup page should be set to the lan ip of your router.

    you probably already did this but i'm trying to cover all bases (mistakes that i would probably make haha)

    so if you have the pptp on the server with address 192.168.1.1, the pptp server ip address is 192.168.1.1. and if the other one is the server, use it's lan ip as the address.

    let us know how that goes....lets fix this thing.
     
  15. sufrano63

    sufrano63 Network Guru Member

    My settings are as followed:

    - server IP (dyndns name = WAN IP according to wiki)
    - client IP(s) = 192.168.1.200-210
    - CHAP-Secrets = username * password *

    You're recommending

    - server IP = 192.168.1.1 instead???
     
  16. DoC_DaR

    DoC_DaR Network Guru Member

    Yes, the dyn dns should only be on the remote.
     
  17. DoC_DaR

    DoC_DaR Network Guru Member

    Wan IP address = dyn dns This is not 192.168.1.1, this is router local address. Your router has 3 mac address's. One at the wan port, one at wireless port, one for lan port. They are separate.
     
  18. apoena

    apoena Network Guru Member

    ok, so what is the final veredict on what IP to put in the Server IP field?

    right now I have the LAN IP address and it's not working.

    I've tried putting the WAN IP but since I'm using PPPoE with a dynamic IP, every time I put the new IP in and hit [save settings] it picks up another IP from my ISP. Which means that I'll never be able to save the right WAN IP number - EVER. So I'm either really NOT supposed to put that in there or that's a major bug in the software.

    little help?
     
  19. DoC_DaR

    DoC_DaR Network Guru Member

    To properly use PPTP, you must have either a static IP at the WAN port or a DNS service that keeps track of your router from the WAN side. The point of a VPN is to connect two or more LANS across a WAN. When crossing the WAN, only a WAN address can be resolved. Unless you use a pay service like gotomypc.com, you should know something about VPN technology. Setting up a VPN without understanding it tends to be confusing. Good Luck.
     
  20. apoena

    apoena Network Guru Member

    ok, so what is the final veredict on what IP to put in the Server IP field?

    I'm gonna assume you mean I'm supposed to have the WAN IP address there, but as I explained above, that's impossible. I have a domain registered with dyndns. Can I put a domain name in the Server IP field?
     
  21. DoC_DaR

    DoC_DaR Network Guru Member

    DD-WRT v23 1st field, put in router IP address, IE 192.168.1.1. 2nd field put IP range, IE 192.168.1.20-30. 3rd field, PC name and password that will be connecting, IE hal900 * password *
    Yes their are spaces between the name and the asterisk and the password and the 2nd asterisk. This completes the setup on PPTP server on the DD-WRT v23 router. Now on the client side, you will need to setup the connection with the static WAN IP address or the DYN DNS name. Also will need the sign on name and password. The setup for the client PC can be found in great detail at www.microsoft.com under PPTP setup. Hope his helps.
     
  22. apoena

    apoena Network Guru Member

    Ok, I've done that already and it didn't work. I did follow those instructions found on the wiki and something is still not working right somewhere.

    I'll do a few more tests and post the results.

    Thanks
     
  23. matthiaz

    matthiaz Network Guru Member

    The WIKI tutorial works exactly as posted!

    Just put
    SERVER IP = LOCAL IP e.g. 192.168.1.1
    and pay attention how to set up users and passwords. Then it's no problem at all to connect from the "outside" world.
     

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