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    Inbound SIP randomizing

    Scheduled Pinned Locked Moved NAT
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    • V
      Visseroth
      last edited by

      So I've been noticing on the firewall logs that a customer's SIP service provider is sending SIP traffic but the destination port is being randomized.
      Source port is 5060.
      The setup consists of internet devices, no SIP server on the network.
      Is there any way to forward that traffic even though it's being randomized into the phone network without a separate public IP and doing 1:1 NAT?
      My concern about doing 1:1 NAT is security.

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      • K
        kejianshi
        last edited by

        Change you sip port ranges to static port on outbound NAT.

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        • V
          Visseroth
          last edited by

          ok, just made the change from static "NO" to static "Yes"
          Guess I need to wait for the server to register the port change and start returning on the same port?

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          • V
            Visseroth
            last edited by

            I still see incoming ports randomizing.

            Anyone have any more ideas?

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