373 - SBCE - Firewall Blacklist by MAC Address | Voters

373 - SBCE - Firewall Blacklist by MAC Address

David Creech

Add the capability to blacklist devices based on MAC address. On occasion, users will lose their remote worker phone or not return it after leaving the firm. This would allow us to blacklist those specific devices.

March 13, 2025

Sam Osheroff

At the firewall level, the endpoint's MAC address is not known (SBC uses Linux iptables). There is a feature that allows for MAC authentication based on a MAC address in the SIP REGISTER message. Do a search on the Help -> Online Document page for "MAC".

In general, though, it would probably be better to change the SIP communication password on the SIP account for a lost device.