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

    Having Problems Setting Up VLAN's

    Scheduled Pinned Locked Moved Problems Installing or Upgrading pfSense Software
    26 Posts 5 Posters 8.0k 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 Online
      stephenw10 Netgate Administrator
      last edited by

      You could still try disabling hardware vlan tagging. There loads of reports of NICs reporting capabilities they don't fully or correctly support. Surprised to see it from a Broadcom NIC though. I believe the command to do it would be:

      ifconfig bge0 -vlanhwtag
      

      Steve

      1 Reply Last reply Reply Quote 0
      • R Offline
        RobinGill
        last edited by

        Thanks Steve although I read the bge driver doesn't support disabling hardware vlan.

        Anyway just thought I would report back, thought I would forget about VLAN's and got a docking bay with intel MT dual port, still getting intermittent packet loss on WAN. Using ifconfig I realised the Draytek modem I had plugged straight into one of the MT ports only connected at 10Mb!

        Connected them via a managed switch instead and noticed the Draytek only connected at half duplex! Locked the switch port to full duplex and it all started behaving itself.

        I'm wondering if duplex mismatch was the problem all along - but I currently have run out of patience to try messing around any further. However my gut feeling is the the ESXi config was perfect but the native install may not have been working right.

        I'll see if I've regained the will to mess around further next week to see if we can determine throughput with one port VLAN'ed.

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

          A duplex auto-negotiation failure can cause all sorts of weird and wonderful issues. Normally it reduces throughput to a crawl though. Sounds like a promising lead.  ;)

          Steve

          1 Reply Last reply Reply Quote 0
          • R Offline
            RobinGill
            last edited by

            That seems to have done the trick except that every few days however it looses pppoe connection and fails to reconnect (normally reconnects quickly). Need to setup a syslog server to determine what's going on there.

            However, I was thinking it would be nice to have a direct connection between the modem and pfSense to free up the managed switch for other purposes. Unfortunately the modem doesn't have facility to set autonegotiation/duplex so I thought I would do it on pfSense.

            If I use
            ifconfig em0 media 100baseTX mediaopt full-duplex
            at command line and then unplug/replug the wan network lead it works, but if I follow the instructions on this page it doesn't http://doc.pfsense.org/index.php/Forcing_Interface_Speed_or_Duplex_Settings

            I suspect this is because the <wan>section in my config.xml describes a pppoe interface rather than the em0 interface I am trying to configure.

            I do realise the "proper" thing to do when autonegotiation fails and we can only set one device is to set half duplex on that device but forcing fdx is working fine with this equipment.

            I could really do with something that will persist after reboots, but my *nix skills are very limited - I would be very grateful for any suggestions.</wan>

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

              Setup another interface on em0 and set it as type 'none'. Then set the speed and duplex on that instead.

              Steve

              1 Reply Last reply Reply Quote 0
              • R Offline
                RobinGill
                last edited by

                Perfect!

                Just tried it out and rebooted and the change has stuck.

                Thanks a million for all your advise  :)

                1 Reply Last reply Reply Quote 0
                • First post
                  Last post
                Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.