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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Unable to establish the site to site communication between sophos firewall to Microtik router

We set a local ip to our branch office 13.1 to the microtik switch and configured the IP sec in sophos firewall and established the connection and connection also up. We created the policies in microtik and added the IP address. Then established the connection. 

But unable to communicate from branch office to head office.

Branch office ( microtik) -  head office (sophos firewall). 

Please help us to resolve this issue.



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  • Hi Anurag,

    Can you confirm if the Microtik switch is a layer 2 or 3 switch?

    If it’s a layer 2, you must create an SNAT rule in the firewall. 

    If it’s a layer 3 switch, you’ll need to add a route on that switch for traffic going to and from the VPN networks.

    It will also help if you provide us with your network topology so that we can visualize the traffic.

    Let us know if this works

    Thank you

  • Yes, we are using Microtik CCR2004-16G-2S+  (Branch office) & Firewall Sophos XG115 (Head office)