Technical Tip: FortiGate displays FortiClient UID when end users connected to IPsec SAML IKEv2 VPN

[btan]

Description	This article describes how to resolve the issue whereby FortiGate does not display the Xauth username properly.
Scope	FortiOS 7.2.6 onwards, 7.4.0 and 7.4.1. IPsec SAML IKEv2 VPN is introduced in FortiClient 7.2.3 and above.
Solution	In FortiGate -> Dashboard -> IPsec Monitor: FortiGate displays FortiClient UID instead of the actual username under the column 'Xauth User'. Run the command:  diagnose vpn ike gateway list FortiGate (root) # diagnose vpn ike gateway list vd: root/0 name: FCT_SAML_ version: 2 interface: vlan5555 55 addr: 5.5.5.5:4500 -> 5.5.5.6:64917 tun_id: 192.168.1.1/::10.0.0.185 remote_location: 0.0.0.0 network-id: 0 transport: UDP created: 149s ago eap-user: 48B5CB6355D24C8C9BA77807C8DB6CB7 <-- It shows FortiClient UID instead of the actual username. This is a known issue in the FortiOS version lower than FortiOS 7.4.2. The solution is to upgrade FortiOS to 7.4.2 to resolve this issue.