I have two switches that are running our phone system. They get DHCP from the phone central.   They are all on a closed network and so the switches are not connected to our LAN and therefore do not have internet access.   Now I want to connect the switches to the LAN and make 5 - 6 ports isolated from the rest so I can combine the switch to serve my normal LAN and my phone network   The phones run off native LAN 1   I dont want the DHCP of my LAN to give IP adresses to phones and vice versa.   How do I seperate these two in the same switch? ... View more