Connecting to the router across the Internet

Discussion in 'DD-WRT Firmware' started by nstublen, Sep 6, 2006.

  1. nstublen

    nstublen LI Guru Member

    I've upgraded a WRT54G to run "DD-WRT v23 SP1 Final (05/16/06) vpn".

    I'm trying to get VPN running, but I seem to be hitting a snag. I've configured DynDNS for the router and I can see that lookups of my hostname resolve to the router's IP address. So the DynDNS service setup would appear to be running correctly.

    However, if I go outside my LAN and try to ping the router, I just get a timeout. So if I'm on the LAN and ping "<subdomain>", I see the name is resolved to the correct IP and the ping works. When I go outside my LAN and ping "<subdomain>", I still see the name is resolved to the correct IP, but the ping request times out.

    Is there a setting I'm missing that allows the router to be seen from outside my LAN? (The ISP the router connects to is Verizon DSL.)

  2. HennieM

    HennieM Network Guru Member

    I forget what the exact setting is, but you probably have a router setting like "Discard ping to WAN interface" on. This is intended primarily to not let "bullies" ping you. You can still connect to your router from the WAN side by going to http://<subdomain> - the 8080 being the port you set for connection from the WAN side.
  3. jgutz20

    jgutz20 Network Guru Member

    if its resolving the correct IP address, the router is probably just dropping the icmp packets. If you forward the correct ports on the router you should be able to VPN in. also if the dynamic name doesnt work, try straight to the IP address (tho this shouldnt matter)

    HennieM, connecting through the internet to the router is only going to work if its enabled, this option is in the administration page (on DD-WRT).

    On the "security" tab is where the block "Block Anonymous Internet Requests" exists, if enabled its going to block the ping packets, make sure this is not enabled if you want to ping from over the internet
  4. nstublen

    nstublen LI Guru Member

    I turned off the "Block Anonymous Internet Requests" and I can ping the router, perform remote administration and establish a VPN connection. I re-enable "Block Anonymous Internet Requests" and remote administration and VPN keep working though they didn't before. I didn't need to set up any port forwarding.

    The only thing I can't do yet is browse computers over the VPN by name (though I can ping those computers using their IP address and I can browse them by IP in Windows Explorer).

    Thanks for the help! Hopefully, all will continue to go well.

  5. HennieM

    HennieM Network Guru Member

    Correct of course jgutz20, the remote management must be on.

    Happy that you got sorted nstublen. In order to browse your homenet machines by name from outside, you should probably specify your router (or whatever box hosts your DNS for your homenet) as one of your DNS servers. I say "probably", as NETBIOS stuff is (IMHO) such a crippled (maybe intentionally so) protocol that even if you have DNS resolving, it might still not work. However, in general, it seems that netbios name resolving works kind of when DNS resolving works with Windows boxes.
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