Question

There is a server machine and the client is routed to the server using two routes.
Using netstat -r, I have both of the interface names. How do I create a Socket object using these names?

I know the Socket constructor has localAddr 3rd argument, but how to find it for a given interface name?

Note: netstat -r will print the interface names in the last column.

Socket(InetAddress serverAddr,
       int port,
       InetAddress localAddr,
       int localPort)
       throws IOException 

Answer 1

Alternatively, you can define hostname for each interface (/etc/hosts).
This way you could construct the InetAddress speficying the hostname chosen.