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    Using igc# ports as WAN ports on 6100?

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    • O
      OctothorpAndrew
      last edited by OctothorpAndrew

      I am going through an overhaul of my home network to get rid of my UDM-Pro and prepare for Wifi 6e. I got the pfSense 6100 recently and have been configuring it.

      I have Xfinity's 1200/35 service at my house and I use the Motorola MB8611 as my cable modem. I went with this one because it has a 2.5GbE port rather than two 1GbE ports so I wouldn't have to mess around with LAGGs. While configuring the pfSense, I figured I would set up one of the igc ports on the pfSense as my WAN port, specifically igc3. That way I get the "full" 2.5GbE from the modem and don't have to purchase an SFP module.

      Yesterday, I went to put the pfSense into production and for some reason I could not get an IP address on the WAN port. The link showed as up in the Interface status - I tried rebooting the modem, releasing and renewing through pfSense, nothing. To troubleshoot, I switched the WAN interface over to ix3 (WAN1) and everything instantly started working no questions asked, albeit at 1GbE speeds. Switching the interface back igc3, same problems.

      I know the modem is capable of 2.5GbE speeds as use it with a 10GbE SFP module on my UDM-Pro and get the full speed from Xfinity, so I am pretty sure it's not the modem. I am new to the pfSense world, so any direction you can give me as far as further troubleshooting or log gathering would be great.

      Thanks!

      stephenw10S 1 Reply Last reply Reply Quote 0
      • stephenw10S
        stephenw10 Netgate Administrator @OctothorpAndrew
        last edited by

        Is it actually linking at 2.5G

        What do you see at the command line from: ifconfg -v igc3

        Are you sure you're using the right port? igc3 is the LAN4 port.

        Steve

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        • O
          OctothorpAndrew @stephenw10
          last edited by

          Will try that command tonight when I can try again - my wife and I both work from home, so I have limited windows to take down the internet.

          Yes, I confirmed that I was plugged into the LAN4 port. As part of troubleshooting, I tried LAN1 as well, in case the numbering was reversed. I don't think I switched the WAN interface to igc0, but can't remember exactly. I do know for the majority of the time, I was WAC as igc3 and the modem was in the LAN4 port.

          K 1 Reply Last reply Reply Quote 0
          • K
            kpswalin @OctothorpAndrew
            last edited by

            @octothorpandrew This is the exact configuration I want to run, did you ever resolve the issue of not obtaining an IP?

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