i have cisco 4948 as a core switch.it has 2 VLAN.VLAN 1:172.23.0.0/23 $ VLAN 2: 172.23.4.0/23.my all servers is in VLAN 1 and my internet is also in the same VLAN.1.i want vlan 1 should not communicate with vlan 2 except 2 host.2.i want vlan 2 user ...