Communication is attempted over TCP port 4043 to "tmc.tippingpoint.com". It does not go to an IP address but rather the DNS name so it may need to be configured if you are using an internal DNS server(s) for DNS IP correlation. If a new DV/SMS upgrade is found, a follow-up request to download the new DV will be redirected to the Akamai servers utilizing port 443 to perform the download.
The range of values is in minutes from 30 to 9999. An example command to set the poll interval to 45 minutes is 'set pkg.tmc-poll-rate=45'
Assigning the attribute the value of '0' will disable polling. This setting may be desirable when the SMS is behind a firewall which prevents outbound communications or in a high security environment.