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Block ioT access to internet but, allow NTP time synchronization
I have some home security cameras (Reolink, Amcrest and Foscam). I'd like to block them from having general access to the internet while still allowing them to auto-update their time settings from an NTP server. Anyone know how to do that?
Orbi routers have a feature called Block Services (on the Advanced Tab, Security Menu).
Network Time Protocol (NTP) uses UDP port 123. Three rules would block a camera from everything else:
- Block TCP ports 1-65535
- Block UDP ports 1-122
- Block UDP ports 124-65535
It would be really convenient if all of the cameras have consecutive IP addresses.
1 Reply
Orbi routers have a feature called Block Services (on the Advanced Tab, Security Menu).
Network Time Protocol (NTP) uses UDP port 123. Three rules would block a camera from everything else:
- Block TCP ports 1-65535
- Block UDP ports 1-122
- Block UDP ports 124-65535
It would be really convenient if all of the cameras have consecutive IP addresses.