Hoping someone might be able to assist in fixing a configuration. Currently have 3 separate networks that use the FortiGate for internet. Lan 1 (192.168.100.0/24) and Lan2 (192.168.200.0/24) each are on a separate interface on the FGT.
Lan 3 (172.16.25.0/24) is also on a separate interface, but that network has a L3 switch acting as the gateway for all devices. The DHCP server resides on Lan 3 and while I have DHCP Relay enable on the FGT interface clients aren't getting DHCP leases. I've confirmed that the request is reaching the server and a lease is made, but it doesn't reach the client. I suspect what's happening is the L3 switch on Lan 3 is trying to send the response back to FGT interface on Lan3 and it's being dropped.
Does that make sense. And if so, is there a way to permit this traffic?
Edit think I figured this out and was a matter of some changes that were made for testing. Working as expected in terms of getting an IP.
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