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GRE TUNNEL BTW TWO XG FIREWALL NOT WORKING

Helix

Hello i configured GRE between two XG Firewalls on Azure.

but i cannot ping each others tunnel IP to ascertain that the tunnel is up

Kindly assist



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  • 0

    Why not using Route based VPN? 

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  • 0 in reply to LuCar Toni

    The main request is to setup a GRE tunnel between a Cisco and A Sophos Device and IPSec over it. I give support for the Sophos End and when the configuration was completed I was able to ping the Cisco Tunnel IP but the other end (cisco) could not ping my own tunnel IP.

    This is the reason why i decided to setup a LAB and create GRE tunnel between two sophos device and its obvious now that the issue i was facing with the Cisco device is occurring as i cant ping the two XG remote tunnel IP from the host.

    And Pcap share above shows that the traffic is going out but not been received. I have created several Firewall rule and routes it's still not working.

    So forget route based VPN the request is a GRE tunnel.

  • 0 in reply to Helix

    And Cisco does not support Route based VPN?

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  • 0 in reply to LuCar Toni

    I cant say but what they want is GRE are you saying GRE does not work on sophos ?

  • 0 in reply to Helix

    No but i did not have any use case in the last 2 years for GRE. All vendors moved on to route based VPN, as GRE was likely a workaround for that time. So icannot help about GRE. 

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  • 0 in reply to LuCar Toni

    No problem. I'll wait to see if there are engineers who have successfully implemented GRE

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