How do ip phone and computers get the correct ip address from the DHCP server?
I know that a string can be put into option 128 and that string tells the phone where the TFTP server with the phone configuration is.
The dhcp server knows what scope to use because of the ip address of the default gateway with the ip helper address assigned? The dhcp packet has the default gateway address so it knows which ip scope to use?
What if the port is a trunk and the phone and data are on different vlans?
The phone and the computer don't know what vlan they belong to so how can you put the phone and data traffic seperate vlans.