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Sophos Firewall X4B.NET GRE Tunnel

RichardHughes1

Hello,

I am still using Sophos UTM as my main firewall, but looking to transition over to the Sophos Firewall. I have the Sophos Firewall installed as a VM at the moment. I was wondering if anybody here would know if it is possible/know how to add a GRE tunnel to the Sophos Firewall? I came across some console commands, but after running those, I don't see any entries for the tunnel in the Control Center? I am not even sure if the commands that I used are the correct commands for what I am trying to achieve.

I would like to add my X4B.net GRE tunnel to Sophos Firewall, so that I can route SMTP traffic through X4B. This would allow me to use my X4B IP address, instead of my residential IP which it's range has been blacklisted on Spamhaus as the range is considered residential.

Any help would be greatly appreciated!

Cheers,
Richard



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  • +1

    you can refer https://support.sophos.com/support/s/article/KB-000035813?language=en_US

    There is no UX footprint for GRE tunnel configuration, it's all on CLI. On TCP dump you should see traffic flowing via GRE.

  • 0 in reply to Alok

    Hi Alok,

    Thank you for getting back to me and for providing me with that info. I am really struggling to get this to work, I think the problem is that I don't really know what IP address goes where and the support from X4B is that they don't understand the syntax of the commands, case closed...

    I was wondering if you could advise me on what IP address would go where in those commands? I've tried several combinations but I just can't seem to get this to work. I am not sure if it's just not working because I am currently piggybacking the Sophos Firewall off of the Sophos UTM.

    I have obtained the following information from my X4B control panel -

    Internal IP

    Role

    10.16.0.124/30

    Network

    10.16.0.125

    Unified Gateway

    10.16.0.126

    Bound via NAT to *External X4B IP*

    10.16.0.127

    Broadcast

    *My External IP*

    Backend Endpoint


    X4B only have documentation for Mikrotik routers / RouterOS - https://www.x4b.net/kb/Tutorials/MikrotikTunnel. I have looked at this and attempted to use this to try and identify what IP goes where, but I am really just hitting a brick wall.

    Any help would be greatly appreciated.

    Cheers,
    Richard

Reply
  • 0 in reply to Alok

    Hi Alok,

    Thank you for getting back to me and for providing me with that info. I am really struggling to get this to work, I think the problem is that I don't really know what IP address goes where and the support from X4B is that they don't understand the syntax of the commands, case closed...

    I was wondering if you could advise me on what IP address would go where in those commands? I've tried several combinations but I just can't seem to get this to work. I am not sure if it's just not working because I am currently piggybacking the Sophos Firewall off of the Sophos UTM.

    I have obtained the following information from my X4B control panel -

    Internal IP

    Role

    10.16.0.124/30

    Network

    10.16.0.125

    Unified Gateway

    10.16.0.126

    Bound via NAT to *External X4B IP*

    10.16.0.127

    Broadcast

    *My External IP*

    Backend Endpoint


    X4B only have documentation for Mikrotik routers / RouterOS - https://www.x4b.net/kb/Tutorials/MikrotikTunnel. I have looked at this and attempted to use this to try and identify what IP goes where, but I am really just hitting a brick wall.

    Any help would be greatly appreciated.

    Cheers,
    Richard

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