DHCP will not run on logical interfaces
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Hey Team,
Been troubleshooting for a bit now, confident it's not a configuration issue. The DHCP server is not listening on the VLAN interfaces I've created.
I can replicate the issue without a doubt. The LAN interface will reply to discovers. All of the VLAN interfaces are ignoring them. I see the discovers hitting the gateway, but there is no offer being sent back. Had to revert a migration because of this.
I've seen multiple threads regarding this all over the forum. Would definitely be willing to troubleshoot or provide logs if needed.
The 3 VLANs are running over a LACP bond that is trunked to a Cisco 3560-CX. While I'm not familiar enough in the PFSense CLI to provide data on my own, I'm fairly certain the dhcpd is not listening over anything other than the default LAN interface that is created day 1.
In the other threads I've seen on the forum over the past few hours, the red herring seems to be the VLAN tagging and I really don't think this is the case here. The FW is the gateway to these subnets and sits on the same L2 as the hosts. All the tagging is working as expected, as the gateway is seeing the hosts. When static IPs are used, all route/switch/policy works as expected.
Any suggestions would be great.
-T -
Did you enable DHCP Server on those interfaces?
Have you stopped and started the DHCP server in System > Services? Should not be necessary but sometimes it needs a kick. Don't restart it. stop it and start it.
I can assure you that DHCP Server works just fine on VLAN tagged interfaces. I have seen newly-added interfaces not get picked up on occasion.
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Restart is all I did, not stop and start. Let me get a maintenance ready and I'll give it a shot. Thanks for the quick reply!
-Tom -
Wanted to follow up. That did the trick! No restart, hard stop hard start. Thanks for the help!
