I'm trying to encrypt all the IP traffic in a small LAN network but the in that network all kind of devices are connected i.e. PCs, Laptops, IP Cameras, IP Sensors, etc (new and old devices).
I have looked into IPSec, MACSec and pfsense. But I'm confused if there will be compatibility issues in any device on the network.
I think installing ssl on router or switch level in the above software will solve the problem for PCs and Laptops because they have a interface (browsers) which can encrypt the data before sending. But I'm not sure about the IP Cameras and sensors. Will there data be also encrypted if I simple just connect them to the network.