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Remote Desktop, 2 routers, and my sanity

By tycho1974
Jun 16, 2008
  1. Okay, I've searched the forums and haven't found anything like my situation.

    I've got a home PC that I want to use to connect to my work PC. Problem is my work computer is behind 2 routers. Short version is that we piggyback broadband off our neighbor's line by connecting our router (Router 2) to theirs (Router 1). And don't worry, they know about it, we're sharing.

    So they've got their computers connected to their router on their own LAN, and we've got our LAN on our router connected to theirs simply for internet access.

    So, like I said, I want to connect to my work computer. After some experimentation (all failures), this is what I'm theorizing:

    Router 1 WAN IP - Dynamic
    Router 1 LAN IP - 192.168.1.1, Subnet 255.255.255.0
    Router 2 WAN IP - 192.168.1.2
    Router 2 LAN IP - 192.168.2.1, Subnet 255.255.255.0

    (Okay, here's where I'm not sure if this will work:)

    Router 1 - disable DHCP on the LAN side and setup 192.168.1.2 as the DMZ
    Router 2 - Enable DHCP on the LAN side and forward ports as needed

    Computer on Router 2 - Just use DHCP, it should be a 192.168.2.x ip address

    So theoretically, I will be able to forward port 3389 on Router 1 to 192.168.1.2, then forward port 3389 on Router 2 to 192.168.2.x - right?

    If I'm missing something completely obvious, bad on me. But I've been on this for two day straight and I'm ready to go suck exhaust. Anyone have any ideas? I'd appreciate any suggestions...
     
  2. jobeard

    jobeard TS Ambassador Posts: 9,351   +622

    good, because sharing is almost impossible (needs special routing in both routers)
    this should be working, ie: both LANs should be able to use the browser and get email.
    all that is unnecessary and forces LAN1 to use manual IP setup. it does not help with your gaming issues that follow
    NO. the circular routing will not work and fowarding ports in this layout
    will remove that/those services from LAN1
     
  3. tipstir

    tipstir TS Ambassador Posts: 2,393   +108

    Static IP on both ends you could do it with using one of those free services like No-IP address. Also you should connect to the other network using VPN client Nortel or Cisco VPN or using OpenVPN to protect both incoming/outcoming data streams using VPN tunnel.
     
  4. tycho1974

    tycho1974 TS Rookie Topic Starter

    Okay, so here's happened. This was how I configured:

    Router 1 WAN IP - Dynamic
    Router 1 LAN IP - 192.168.1.1, Subnet 255.255.255.0
    Router 2 WAN IP - 192.168.1.2
    Router 2 LAN IP - 192.168.2.1, Subnet 255.255.255.0

    The problem with this was that my computer (as opposed to everybody else's on the network) had serious problems with internet speed. Webpages, email, everything was wicked slow. So I changed to this:

    Router 1 WAN IP - Dynamic
    Router 1 LAN IP - 192.168.1.1, Subnet 255.255.255.0
    Router 2 WAN IP - 0.0.0.0
    Router 2 LAN IP - 192.168.2.1, Subnet 255.255.255.0

    This effectively allows Router 1 to assign an IP to Router 2, which it did. It assigned it 192.168.1.2. Then:

    Router 1 - DMZ=192.168.1.2
    Router 2 - Forward port 3389 to IP needed

    And this works. I can connect to my work computer from home, no problem. The only thing I can't figure out is why, when I specify the IP for Router 2, my PC gets all wonky, and everyone else's is the same; then when I let Router 1 assign the IP (which ends up being the same as the one I specified), everything's hunky-dory.

    Anyway, thought I'd pass this along...
     
  5. tipstir

    tipstir TS Ambassador Posts: 2,393   +108

    Thanks... Good to see others with complex setups too solve the mysteries of the network infrastructure blues! :)
     
  6. jobeard

    jobeard TS Ambassador Posts: 9,351   +622

    that's because all devices (both routers) are on the same subnet and traffic from
    either router can be seen/received by systems on the other; no special routing requirements :)
     
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