Troubleshooting Tip: Client receives the wrong DHCP scope

[mle2802]

Description	This article describes the reasons why the client receives a different DHCP scope.
Scope	FortiGate and Windows.
Solution	On FortiGate, there are 2 different DHCP scopes which are port7 and VLAN 70: CLI configuration: The client host is intended to get the IP from the VLAN 70 DHCP scope, but here it is receiving the 10.10.10.0/24 range instead. This is because traffic is not being tagged with the correct VLAN ID. In this example, it is possible to tag the VLAN ID on a Windows NIC using the following steps: Open Device Manager on the Windows machine. In Device Manager, open Network adapters. Right-click on the NIC and choose Properties. Select the Advanced tab. Scroll down to VLAN ID. Set the ID that is desired for the NIC to have and select OK. After that, renew the DHCP and confirm if it is getting the correct IP now. Note: For an Intel NIC, it may be necessary to install Intel Advanced Network Services. See: Intel® Advanced Network Services for more information. Here is a related article that provides an example packet capture of DHCP Messages with a VLAN tag:  Troubleshooting Tip: Check DHCP Messages with VLAN Tag using Wireshark Packet Capture