> On 15 Dec 2023, at 16:29, Greg Troxel <g...@lexort.com> wrote: > > For reasons that are not clear, I am seeing packets from hosts that > should be on the vlan also appear on wm0, and I want dhcpd to ignore > those. I think this may be a Unifi bug.
Try disabling VLAN hardware tagging on the wm(4) interface. It’s enabled by default: ifconfig wm0 -vlan-hwtagging My understanding is that wm(4) auto-strips the VLAN tag from the packet before it’s tapped off by bpf(4), so dhcpd(8) gets to see the packets twice; once on wm(4) and again on the vlan(4) interface. I have the same issue on my setup, but it doesn’t seem to cause any problems so I just live with it. Steve
