i'm a little confused.
all these websites will be on different internal servers. lets say i have 100 hundered web address spread accross 10 servers intenal servers. 10 on one computer 10 on another and so on. instead of having 1 external ip going to 1 internal ip i will now have 1 external ip redirecting traffic to 10 different internal servers right now i have 1-1 static nat. iis determines which directiory to send it to by reading the host headers. Here is a better visual
webaddress external ip internal ip
xyzco.com 1.1.1.50 192.168.1.1
www.z123.com 1.1.1.51 192.168.1.2
but now my situation has changed. i will only have one external ip address to use but many internal ipaddresses. so
webaddress external ip internal ip
xyzco.com 1.1.1.50 192.168.1.1
www.z123.com 1.1.1.50 192.168.1.2
how will the traffic get directed to the right internal server?