Shared on the Extreme Networks Community Hub:

1.- Mandatory, mgmt CLIP interface:

mgmt clip
ip address 1.1.1.1/32
enable

2.- Create VLAN, L3 interface and assigning it to a port:

vlan create 666 name DHCP type port-mstprstp 0
interface vlan 666
ip address 192.168.69.1 255.255.255.0

exit

vlan member add 666 1/4

3.- DHPC-SERVER subnet

ip dhcp-server subnet 192.168.69.0/24
pool 192.168.69.100 192.168.69.200
router 192.168.69.1
domain-name-servers 8.8.8.8 8.8.4.4
domain-name dhcp.int
lease-time 86400
enable

4.- Enable it globally

ip dhcp-server enable

At this point the server doesn’t work, in order to work you must enable dhcp-server relay on VLAN to mgmt CLIP

5.- Enable DHCP-RELAY

interface vlan 666
ip dhcp-relay

exit

ip dhcp-relay fwd-path 192.168.69.1 1.1.1.1 enable