Netgate Discussion Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Search
    • Register
    • Login

    Chelsio T520 not working as WAN interface

    Scheduled Pinned Locked Moved General pfSense Questions
    25 Posts 5 Posters 4.1k Views
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • stephenw10S
      stephenw10 Netgate Administrator
      last edited by

      Yes large packets would be my first thought. Disabling pf wouldn't affect that though.
      However it does disable pf-scrub. Perhaps you have packet fragments that are not being assembled correctly. Maybe the Chelsio card is doing something with them, it has all sorts of offloading hardware that we don't use.

      You can disable pfscrub separately in System > Advanced > Firewall & NAT.

      Steve

      1 Reply Last reply Reply Quote 0
      • S
        ssjucrono
        last edited by

        Hello I am having a very similar issue! I have a chelsio t404-bt and I am using Centurylink. Which WAN tags vlan201 and pppoe. This setup worked fine with 2 intel nics. Now with the chelsio card I get an WAN IP and I can traceroute from pfsense out but I have no internet on my devices.

        Any solution to this?

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

          Do you have other connectivity from pfSense itself? Can it check for updates or install packages for example?

          If so it's a different issue. Probably no NAT.

          Steve

          S 1 Reply Last reply Reply Quote 0
          • S
            ssjucrono @stephenw10
            last edited by ssjucrono

            @stephenw10 no I cannot get a list of packages either on pfsense

            see odd graph and wan ip

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

              Ok so you can ping out though?

              Try pinging out with large packets:
              ping -s 1000 -c 3 1.1.1.1

              Try different sized packets to see if you really are seeing an MTU issue.

              Steve

              1 Reply Last reply Reply Quote 0
              • M mehiyok680 referenced this topic on
              • First post
                Last post
              Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.