Procedure

1. Go to Administration → IMSVA Configuration → Known Hosts.
   The Known Hosts screen appears.
2. Select the Enable Known Hosts check box.
3. Specify the IP address and description for the host to add.

   Note IMSVA supports IPv4 and IPv6 addresses for known hosts. Optionally specify a single IP addresses and subnet addresses.

4. Click Add.
   The new host appears in the known host list.

   Note Make sure to add this IP address as a Transport Layer Security (TLS) IP address and set its security level to Never. Otherwise, the newly added known host will not take effect. For details about how to add a TLS IP address, see Adding TLS Settings for Messages Entering IMSVA.

5. Click Save.