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Daniel8
Daniel8
New Member
January 22, 2025
Question

How to route to another site through middle site on Fortigate

  • January 22, 2025
  • 1 reply
  • 450 views

Introduce: 

OS 7.4.6

Site A has 2 tunnel VPN (site-site 1 and site-site 3)

Site B has 2 tunnel VPN (site-site 2 and site-site 3)

Site HO has 2 tunnel VPN (site-site 1 and site-site 2)

 

Scenario:

- Site A and Site B disconnected tunnel site-site 3

 

Request:

How to configure routing on 2 tunnel site-site 1 and 2 for Site A can access Site B through site HeadOffice is middle.

VPN.jpg

#IPsec, #FortiGate

1 reply

AEK
SuperUser
AEK
SuperUser
January 22, 2025

Have you tried by just adding the two static routes through ss1 and ss2 with higher distance?

Doing so should force your FG-40Fs to use ss3 tunnel when its up, and once ss3 is down its route is removed and the FG-40Fs will use the remaining routes ss1 and ss2.

You will also need a firewall rule on FG-100F to allow traffic from site-A to site-B and vice versa.

AEK
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