>I have a little LAN with 3 PCs running windows XP Professional with
>only one network adapter per PC. They are connected to a switch. Each
>PC must use a special application and they must have a different public
>IP address (they can not access Internet via NAT with only one external
>IP, each IP must be used with only one client)
>My ISP gave me a cablemodem. It has a built in DHCP that gives public
>and dynamic IP addresses for each PC.
>If each PC has a public and dynamic IP ¿How can I connect them
>internally in the LAN? I can only think in three possibilities, but I
>am not satisfied with any of them
>
>1) I could use the public IPs for the LAN, but I would be exposing
>resources to the Internet and I don't know how the name resolution
>would work in the LAN.
>
>2) I could use other protocols for the LAN, perhaps IPX or netbeui, but
>I refuse to do that, it's a dirty solution.
>
>3) I could add another IP for each adapter. But if I manually add IPs I
>can not use the DHCP of the cablemodem. I need one IP assigned by the
>DHCP and another one assigned by me.
>
>¿What can be done?
>