Category Archives: December

Setup VPN to Access Home Lab

I have been recently working on a personal project to access my home lab from outside home. My Home lab has a mac mini server 2012 where i have baremetal ESXi running instead of OSX.
I have an ADSL 2 conection at my home where modem/router functionality is both handeled by the same device. The modem/router does not have VPN functionality inbuild. My ISP is Telstra here in Australia.
Modem/Router Model : Technicolor TG799vac (Telstra Gateway MAX)

I bought an ASUS RT-68U router, the stock Firmware (ASUSWRT) on this router has openVPN server built in. After some research, i formulated a plan to configure my current Telstra modem/router in Bridge mode and use ASUS RT-68U as the primary wifi device for my home network. Here is the plan:

  • Telstra modem has a LAN IP address of 10.0.0.138
    • Login to http://10.0.0.138 and take screenshots of all tabs that might be useful
    • Record your ISP username and figure out the password. You’ll need to use this while setting us ASUS RT-68U router
  • Poweron ASUS RT-68U router and check if it boots up, i mean make sure it’s not faulty
  • Configure Telstra Modem/Router in Bridge Mode
    • Have a laptop directly connected with ethernet cable to Telstra router
    • Go to http://10.0.0.138
    • Go to Advanced
      • Turn off wifi for 2.4 and 5.0 GHZ (also guest wifi)
    • Go to Local Network
      • Scroll to Bridge Mode
      • Confirm
    • The router/model restarts in to bridge mode
    • The router will have RED LEDs, don’t worry
    • As a second measure, turn off wifi with the button on the front of the router/modem
    • After reboot, the router is still accessible via http://10.0.0.138 however, does not have all the tabs previously available
  • Now verify if internet is working by setting up a PPPoE connection
  • Connect ASUS RT-68U to Telstra modem
    • plug the LAN port from Telstra modem in to WAN port of ASUS RT-68U router
    • restart ASUS RT-68U
    • plug your laptop to one of the LAN ports on ASUS RT-68U
    • ASUS router web page automatically opens up else use the default IP address in the setup sheet which comes with ASUS RT-68U
    • Setup ASUS RT-68U with your Telstra username and password and configure Wifi
    • Connect your devices to new wifi and verify everything works
  • For VPN, Go to Advanced Settings -> VPN -> OpenVPN
    • Setup using Advanced Settings, use TUN instead of TAP
    • OpenVPN server on ASUS RT-68U assigns an IP address in the range 10.8.0.0/24 which is different to Local LAN IP range. With this IP address you cannot ping any of local devices. You will need to add a static route in OpenVPN settings page, to get this functionality working
      • push “route <local-LAN-IP-range> <subnet-mask>”
      • e.g push “route 192.168.2.1 255.255.255.0”
      • OpenVPN-Route
  • Connect to Home VPN from outside on a MAC

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