Doing first 2012 active/passive cluster install. On the screen which looks the same as 2008 where it needs to validate the cluster network I put in the IP I was give to link to the sql instance name. It fails and tells me it can not validate the ip address. I can't even ping the IP from a command prompt. Am I missing something, I don't think this will work and validate if I can't ping it.
For a 2 node single instance cluster,this is what you need
One IP for the actual Windows Cluster
One IP for the SQL server instance
One IP for the MSDTC virtual ip
One IP for the Public NIC (each node)
One IP for the heartbeat network
Are you meeting those requirements? ... also, your public NIC and SQL server instance virtual IP, should be on same subnet.
Also, you do not mention which Os you are using. But if you are using Windows 2008R2 or similar, please ensure it is fully patched (both nodes). And that you can ping via IP and name to other node. I also like to ping (name and IP) the Domain Controller as well; MS Cluster uses AD a lot, so you need to ensure both nodes can ping the DC too.