Sophos XG Firewall: How to configure the Sophos XG Firewall as a DDNS server


  • Sophos XG Firewall (SF) support four methods of IP tunneling to promote interoperability between IPv4 and IPv6 networks. IP Tunneling is a mechanism that encapsulates one network protocol as a payload for another network protocol; i.e. either an IPv6 packet is encapsulated into an IPv4 packet for communication between IPv6 enabled hosts/networks via an IPv4 network or vice-versa.

How to configure Sophos XG Firewall as a DDNS server:

  • Go to Network > Dynamic DNS and click Add.
  • Complete the following sections and then click Save:
    • Hostname: Type the desired name. It must be <name> Example:
    • Interface: Select the external interface.
    • IPv4 Address: Select NATed Public IP.
    • IP Edit Checking Interval: Set the interval of time between IP address checks/edits.
    • Service Provider: Select Sophos from the drop-down menu.

  • You have now configured Sophos XG Firewall as a DDNS server.
  • NOTE: This feature is not supported in High Availability mode.

Sophos as the DDNS service provider

  • Sophos Firewall also supports the following DDNS service providers:
    • DynDNS
    • ZoneEdit
    • EasyDNS
    • DynAccess

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