Obective is to find cluster IP
I have one protal which consist so many applications, and my portal is deployed in Two servers sp1 and sp2 , if i hit url of sp1 it will open portal belongs to sp1 and if hit url of sp2 it will open portal belongs to sp2. but now i want to change that senario. basicaaly i need one common IP, Virtual IP, Cluster IP or DNS for both the servers, if i hit that cluster IP it will open either sp1 or sp2 which one is free at that time just like web farm or NLB. So is there any methodology to apply this scenario if yes, please let me know all possible technique.