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[Zyxel 8825] Enable NAT loopback

hitech95hitech95 Posts: 3  Junior Member
edited September 2019 in Questions
My provider give me this modem/router but I have some services that must be accessible by both the LAN and WAN.

Is there a way to enable NAT Loopback on this device? Otherwise I'll have to move to another product.



  • HikariHikari Posts: 98  Warrior Member
    Hi hitech
    Would you please give me the full module ID, value is after VMG8825? and please provide the FW verison to me as well. That would be easier to check. Thank you.
  • hitech95hitech95 Posts: 3  Junior Member
    Serial number: S192V0501645
    Firmware Version V5.13(ABLZ.1)b8_20190225

    It it a branded version of Zyxel VMG8825-B50B

  • Zyxel_KerwinZyxel_Kerwin Posts: 16  Zyxel Moderator
    edited October 2019
    After I checked it internally, it seems NAT Loopback is not supported on this device.
    My suggestion is to contact your service provider to get help.
  • hitech95hitech95 Posts: 3  Junior Member
    Is this option available on a not branded version of the Zyxel VMG8825-B50B?
  • Zyxel_KerwinZyxel_Kerwin Posts: 16  Zyxel Moderator
    In my test with VMG8825-B50B Generic Firmware V5.13(ABNY.2)C0, it does support NAT Loopback.
    I only add a port forwarding rule to map it to my LAN test server with a specific port number and then I can use a LAN client to access the server at the LAN side via the WAN IP of VMG instead of the LAN IP of the server.
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