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Comcast static IP

Scheduled Pinned Locked Moved Routing and Multi WAN
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  • V
    Valley
    last edited by Jun 26, 2017, 4:52 AM

    Hi,

    I would like to use the load balancing within pfsense. I have two internet provider –> Comcast business with a fixed IP and Xfinity.
    Before I can setup the load balancer I have to confugure the static ip correctly. And this is my problem:

    After installing pfsense I have my wan configured with the static IP address: xx.xx.xxx.77 and the gateway address xx.xx.xxx.78.

    My Router from Comcast is in Bridge mode.
    --> no internet connection, as soon as I run it with DHCP I'm connected.

    Can someone please help me?

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    • C
      chpalmer
      last edited by Jun 26, 2017, 7:59 PM

      I wasn't aware you could use a bridged modem and get static IP's working with Comcast Business..

      What model modem did they give you to use?

      Triggering snowflakes one by one..
      Intel(R) Core(TM) i5-4590T CPU @ 2.00GHz on an M400 WG box.

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      • V
        Valley
        last edited by Jun 26, 2017, 10:28 PM

        It's from technicolor - DPC 3941b

        But what's the reason that I couldn't get an internet connection when I use the provided fixed IP plus the gateway IP from Comcast?
        What am I doing wrong?

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        • D
          dotdash
          last edited by Jun 26, 2017, 10:35 PM

          Login and check the modem settings. There is generally a checkbox to bypass the firewall for the public block. If you can't get it working, talk to their support. Painful, but sometimes unavoidable.

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          • C
            chpalmer
            last edited by Jun 26, 2017, 10:37 PM

            http://forums.businesshelp.comcast.com/t5/Equipment-Modems-Gateways/How-to-enable-bridge-mode-on-DPC3939B-and-keep-static-IPs/td-p/20409

            Triggering snowflakes one by one..
            Intel(R) Core(TM) i5-4590T CPU @ 2.00GHz on an M400 WG box.

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            • V
              Valley
              last edited by Jun 27, 2017, 7:20 PM

              Hey,

              Thanks for the tip. I managed to get the load balancer up and running.

              :-)

              I have now Xfinity with a dynamic IP and Comcast with a stativ ip.
              When I check my public IP address my dynamic Xfinity is shown - how can I setup up my Comcast static IP address as the default address?

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              • C
                chpalmer
                last edited by Jun 27, 2017, 9:35 PM

                @Valley:

                When I check my public IP address my dynamic Xfinity is shown - how can I setup up my Comcast static IP address as the default address?

                One way is to bridge a third interface to your WAN port and put the static IP's on devices on that interface.

                Other is to use VIP's and then port forwarding or 1:1 NAT to the intended devices.

                https://doc.pfsense.org/index.php/What_are_Virtual_IP_Addresses

                Triggering snowflakes one by one..
                Intel(R) Core(TM) i5-4590T CPU @ 2.00GHz on an M400 WG box.

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