1. On which device are you having the problems? If it is the 6500 switch then it sounds like you're entering the same commands as you have on the router's sub-interface. On the switch you should have something along the lines of:-
interface vlan 2
ip address 192.168.x.x 255.255.255.x
interface fastethernet 3/12
switchport mode access
switchport access vlan 2
2. I hope you're not connecting directly from your ISP to your core network without going through a firewall, that would be silly, even if it is just a pass-through VLAN then it still carries risks.
3. If you are running VTP then be sure about if VLAN 2 is used elsewhere on the VTP domain. You could end up overwriting existing setup.
I'm not on here much, so may not be able to respond to any further info you post.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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