SDN No DHCP address when Datacenter firewall is enabled.

[morax]

I have firewall enabled on the datacenter level.
When setting up simple sdn with DHCP. Created a new VM, but DHCP address is not getting assigned to guest.

If i disable the firewall, I am able to get a DHCP address without issue. Im assuming i need to add a firewall rule to allow, just not sure which rule to add.

 

[itkfm]

Luckily, this is documented here:
https://pve.proxmox.com/wiki/Setup_Simple_Zone_With_SNAT_and_DHCP#Firewall_Setup