Using router with pace 5268ac modem.
I’m installing security camera’s that the dvr needs to be connected to a router by Ethernet cable, so I can view them from my phone or tablet. my question is, can an added wireless router get on my WiFi network from the pace5268ac modem and then I plug the dvr by Ethernet into the wireless router? Trying to get around having to run a Ethernet cable to the other room where the modem is. Sorry I don’t understand how these things work!