Connection to the remote computer by socket

Question

the computer which i want to access from my home is the computer of mine in the company. and i want to do this with socket programming.i will execute a java program listening the port 5101 for example at work.
my intranet IP is 10.10.20.84 (i think this is private IP)
but if i visit;
http://www.ilanonurajans.com/ip_ogren.asp
the IP is different from this (i think this is the public IP)
so how can i create the socket?
Socket clientSocket=new Socket("***.***.***.***",5101); //public one
or
Socket clientSocket=new Socket("10.10.20.84",5101); //private one
thanx

Answer 1

Let me see if i understand you correctly you want to access your work pc from your home pc right? So the serverSocket will be on your work pc.
IF this is the case it won't be easy to do so. This is because you are behind something known as a NAT (network adress translation). Since you have a different public and private ip you can't reach your pc from outside of the internal network. The only way to accieve this is if you have access to the router that manages your nat at work and make it foreward all incomming connections on your port to your pc. If you do that you need to do
Socket clientSocket=new Socket("***.***.***.***",5101); //public one
If you can't configure the router there is no way to do what you want.
HTH
Lima