how can i configure multiple IP's on a single network card ?(XP)?

Question

(very sorry for my previous post --- it's multiple IP's that i wanted to say not multiple ISP's)
My ISP provided me 2 IPs. Extern/real ip and local one.
What i want to know is that if it's possible to put 2 ips on a single network card in this way :
-When using extern connection -- use extern/real ip
-When using local network connection -- use the local one
At least that's the way they told me it should work . It's a small ISP and the guys are quite new in this stuff and they couldn't handle my configuration.
I've tryied the Alternate ips stuff on the network config but i couldn't reach the desired result.(my extern ip isn't the one that it should be-and a few network failures).Sugestions ? ... beside changing my ISP...

Answer 1

the two ips can be -- one to assign ip address to computer and other to assign to the dns server (statistic ip).

Answer 2

Go to the PROPERTIES screen for your adapter then select the properties of the TCP/IP protocol. You will need to turn off get an address automatically and then click on advanced at the bottom of the screen. You will then be able to add a list of IP addresses.