Question

To mitigate possible attacks, it may be required to whitelist certain IP addresses from Opentok SIP. Where do I find the list of IP blocks Opentok uses?

Applies To

• SIP Interconnect

Answer

The list of IP blocks can be found under the security considerations section of our SIP interconnect sample Github link. The blocks are as below:

52.200.60.16 – 52.200.60.31

52.41.63.240 – 52.41.63.255

52.51.63.16 – 52.51.63.31

Additional Information

Be aware that TokBox can add new IP blocks in the future, and you will need to change your configuration.