Currently I POCing Fortigate UTMS with plan to split company network to several vlan for ease of management. I got 3 3COM Switch 4400 SuperStack 3 3C17203 aggregated together into 1 VLAN. To start the test small, I configured 2 free ports on of the switch into VLAN 2 and configured the DMZ port on the Fortigate firewall to issue DHCP. I tested it with a cross cable connect to my laptop the DHCP issue is with no issue. I connect cross cable from the Fortigate DMZ to one VLAN 2 port while the other VLAN 2 port is connected to the test laptop.
I can ping to the dhcp server using static ip neither can I grab any ip from the dhcp server set at the fortigate DMZ port. Any 3COM switch experts out there can lend me a hand. Thanks.