i have configured a new lan address 192.168.3.xx  with dhcp server  from 192.168.3.2 to 254 and i have associated it to routers port number 4, then i set a new VLAN ID "3" and then i associate it to port  N° 4 the vlan id number 3 mode TAGGED and disabled the other LAN.

if i put a cable from router port  N°4 and pc's NIC my ethernet obtain an ip address 192.168.3.2 and it is right but why i obtain an ip even if i did not set a VLAN ID 3 on my pc's NIC? can someone help me plissss?  

Enrico