So I watched ton's of youtube videos, everyone from random indian blokes to Lawerence Systems, and for the life of me I cannot get this working.
So here is my network config
LAN 1, 192.168.1.1/24
Servers 2, 192.168.2.1/24
Home Wifi 10, 192.168.10.1/24
IotWifi 20, 192.168.20.1/24
WifeWifi (no security per wife request) 30, 192.168.30.1/24
Guest Wifi 40, 192.168.40.1/24
I have 4 Unifi AP's and have a Unifi controller built on docker(running on Unraid on a host setup, so it has its own IP address), The Unifi config is correct with all wifi network connections being routed to their specific VLANs.
I set up firewall rules(for setup purposes) for all/any for inter-VLAN communication.
I configured interfaces and DHCP for each VLAN with static and their IP addresses above.
If I remove the VLAN's, they can get 192.168.1.x IP's but it seems as though the DHCP absolutely refuses to work on any of the VLAN's, I even made new gateway's on each VLAN to see if that would fix it, it did not. All I get is 169 IP's from the devices attempting to use a VLAN, which means it cant talk to the DHCP server.
Any advice would be greatly appreciated as I am trying to get rid of my Unifi UDM due to their utterly terrible Suricata implementation.
Taking the unifi AP controllers out of the equation i.e. assuming they don't attempt to give out dhcp addresses, the in OPN, on Services > DHCPv4 > {VLAN name} > At the top select "Enable DHCP server on the {VLAN name} interface". This is for ipv4 of course, and chose your options.
Then you need to have firewall rules to allow dhcp (udp 67 and 68). Creating the VLAN, I think with OPN default options it creates them automagically. Check they're there. If not, you can copy it from the LAN.
Have you tried rebooting after setting up the new VLANs ?
Recently had the case where I added a new VLAN.
Everything seemed (and turns out was) set up fine, but I couldn't get DHCP to work. Spent a few hours eliminating everything else and finally decided to reboot.
Et voila, everything worked as expected after the reboot.
Quote from: cookiemonster on February 19, 2022, 10:23:00 PM
Taking the unifi AP controllers out of the equation i.e. assuming they don't attempt to give out dhcp addresses, the in OPN, on Services > DHCPv4 > {VLAN name} > At the top select "Enable DHCP server on the {VLAN name} interface". This is for ipv4 of course, and chose your options.
Then you need to have firewall rules to allow dhcp (udp 67 and 68). Creating the VLAN, I think with OPN default options it creates them automagically. Check they're there. If not, you can copy it from the LAN.
This fixed it.
The rules were
not created automagically. I rebuilt all of them and then they did show up. That's an interesting bug.
Thank you for the help!
Quote from: Bonkerton on February 20, 2022, 02:38:28 AM
Have you tried rebooting after setting up the new VLANs ?
Recently had the case where I added a new VLAN.
Everything seemed (and turns out was) set up fine, but I couldn't get DHCP to work. Spent a few hours eliminating everything else and finally decided to reboot.
Et voila, everything worked as expected after the reboot.
I work in IT hahaha, the first thing i tried was a reboot. Sadly as stated above I believe it was a bug. Not sure how to replicate it, or I would report it =(