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Sophos XG 125 18.0.3 MR3 - Loopback not working

Ross Fraser

Nat rules are configured 

Original source                   ANY - Have tried the network as well
Translated source              MASQ - have tried Original as well
Original destination            EXTERNAL IP - (Alias on the WAN interface)
Translated destination        Internal IP
Original service                  Any
Translated service             Original

A ping to the device does not work form the same internal network but does from other internal networks and from the internet.



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  • 0

    Which Firewall ruel did you use? 

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  • 0 in reply to LuCar Toni

    Its a Sophos Xg 125 with 18.0.3 MR3 firmware

    The outside interface is setup with 3 ip addresses

    one of the alias ip addresses is forwarded to an internal server which is on a vlan on the inside which is used by one of the offices.

    They need to be able to reach their web and mail server using the external ip address when in their office.

    I used the dnat wizard to create the routes and had to add the external ip to the reflexive routes so that the mail server sends out on the correct IP

    the loopback does not seem to work 

    Now that i am writing this out would i need to set the loopback to translate to the correct external IP as well instead of MASQ?

  • 0 in reply to Ross Fraser

    You need a matching Firewall rule for the Loopback NAT rule. Is this created and does the data ticker increase? 

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