Unknown Service Class – SonicWALL

IT Support Forum Forums Network & Firewall SonicWALL Troubleshooting Unknown Service Class – SonicWALL

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  • #2273


    When trying to configure NAT Policies on a SonicWALL, you get this error:

    Unknown service class

    This is because either:

    • You are translating one port to more than one port, or vice versa – You must make a separate NAT Policy for each port you wish to translate; you can only translate one port into one other port.
    • You are trying to translate a UDP port into a TCP port, or vice versa.

    Creating a NAT Policy in either of the above scenarios causes the Unknown service class error in SonicWALL.

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