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uniquewaheed
uniquewaheed
Visitor III
September 13, 2025
Question

Fortigate Transparent Remote Access VPN

  • September 13, 2025
  • 1 reply
  • 856 views

Hello all, 

 

I am using Fortigate F60 in transparent mode at Homelab using DSLRouter as WIFR Router,DHCP Server and Internet GW with Static Public IP . Now I want to use Fortigate as Remote Access VPN, as per my basic Fortigate knowledge may be it not possible due to DHCP service are not available in tranparent mode. 

 

Is there any possbility to configure Remote VPN Access in transparent mode. 

Regards

 

1 reply

kaman
Staff
kaman
Staff
September 14, 2025
Hi uniquewaheed,
 
FortiGate in transparent mode has significant limitations, especially when it comes to layer 3 services like DHCP, NAT, and VPN, because it's operating at Layer 2 (bridging) rather than Layer 3 (routing).
 
 
VPNs between two FortiGate units running in transparent mode do not support inbound/outbound NAT (supported through CLI commands) within the tunnel. In addition, a FortiGate unit running in transparent mode cannot be used in a hub-and-spoke configuration.
 
In a transparent VPN configuration, two FortiGate units create a VPN tunnel between two separate private networks transparently. All traffic between the two networks is encrypted and protected by FortiGate security policies.
 
Both FortiGate units may be running in transparent mode, or one could be running in transparent mode and the other running in NAT mode. If the remote peer is running in NAT mode, it must have a static public IP address.
 
You can refer to the document below for more information:
 
 
If you have found a solution, please like and accept it to make it easily accessible to others.
 
Regards,
Aman
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