FortiGate
FortiGate Next Generation Firewall utilizes purpose-built security processors and threat intelligence security services from FortiGuard labs to deliver top-rated protection and high performance, including encrypted traffic.
Babitha_M
Staff
Staff
Article Id 253536
Description This article describes how and what is needed to check when configuring SSL VPN with IPv6.
Scope FortiGate.
Solution

The configuration is similar to the IPv4, however, it is necessary to verify the information the user who is trying to connect the SSL VPN with Ipv6, should have the IPv6 address on his PC.

Firstly, it is necessary to enable the IPv6 from the feature visibility.
Select System -> Feature visibility -> enable the IPv6 and Select Apply.

 

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Once the IPv6 is enabled, configure the IPv6 address on the WAN interface.

 

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Once configuring the IPv6 address on the interface, it is possible to configure SSL VPN. Refer to the below link for the configuration: 

SSL VPN full tunnel for remote user

 

Below are the sample SSL VPN settings and SSL VPN portal using IPV6.

 

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Note that while creating a policy, remember to create it with an IPv6 address. Configure Firewall Policy using IPV6 address for source and destination.

 

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Once the client machine has a relevant public IPv6 address on the network, download the FortiClient tool and configure it using the public IPv6 address of the FortiGate and the associated listening SSL VPN port number.

 

Below is the sample configuration:

 

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Once, connected the user will receive the IPv6 address and can access the IPv6 subnet. It is possible to check the user details from GUI (Enable the SSL VPN monitor from the dashboard) and CLI:

 

FGT-HO # get vpn ssl monitor

 

On the Forticlient end, observe that SSL VPN is established and it uses the IPv6 address from the configured IPv6 range configured in SSL VPN settings.

 

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Related documents:

Technical Tip: How to configure specific SSL VPN address pool to SSL VPN Users/Usergroup

SSL VPN using web and tunnel mode

Dual stack IPv4 and IPv6 support for SSL VPN