Important note about SSL VPN compatibility for 20.0 MR1 with EoL SFOS versions and UTM9 OS. Learn more in the release notes.

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Relay traffic from branch office site-to-site to remote site through head office

Good Day,

We have four site-to-site VPNs setup and working.

  • Site A (Head Office)
  • Site B (Branch Office 1)
  • Site C (Branch office 2)
  • Site D (External party (Fortinet) site)

Site A (Head Office) connects to Site D (external party) to allows us to communicate to the Site D (external party) and connect to their server. Note: We have NATed the Site A to Site D site-to-site vpn. 

My issue is that users from Site B and C cannot communicate to the external party via the Site-to-Site VPN through Site A to the external party site D. Only way users from Site B and C are able to connect to Site D is with (windows server VPN) to Site A. 


How can I allow Site B and C to also communicate with Site D using Site A site-to-site VPN?



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