LACP and VLAN Issues with Netgear Switch



  • I'm having trouble getting LACP and VLANs to work with pfSense and our new Netgear switch. The LAGG interface shows as up but doesn't seem to receive any traffic from the switch.

    Setup:

    Netgear GS748Tv5
    Create LAG1 group with ports 2 and 3
    Create VLANs 30 (data) and 10 (mgmt)
    Assign port 1 tagged VLANs 10, 30 PVID 10  (mgmt port)
    Assign port 5 untagged VLAN 30, PVID 30 (testing port)
    Assign LAG1 tagged VLAN 30, PVID 10

    pfSense 2.4.2-p1 FreeBSD 11.1-p6 - QOTOM-Q355G4
    LAGG0 with parent interfaces igb2 and igb3 and LACP.
    Assign and enable new interface for LAGG0. Static IPv4 10.99.110.1 /24
    Add VLAN 30 priority 0
    Assign and enable new interface for VLAN 30. Static IPv4 10.99.30.1 /24
    Enable DHCP for VLAN 30.

    The pfSense shows LAGG0 and VLAN 30 as connected and up but I'm unable to contact the DHCP server on port 5.

    Weirdly, it works perfectly if I just setup a single trunk interface (no LAGG/LACP) between the ig3(or ig2) and one of the LAG1 ports on the Netgear, without changing anything else.

    Clearly something is wrong with the LACP setup on the Netgear switch and/or the pfSense box. Any ideas would be appreciated. I've been banging my head against the wall all day.



  • I figured it out. Static Mode needs to be set to disable on LAG1 on the Netgear to enable LACP.  ::)