Question

I read raw socket tutorial in order to implement my own bridge (i capture package from one side and send them to the other interface by raw socket). I am coming from Java world, so low level programming is strange to me, so forgive me for my ignorance.

I implement a bridge, so I need to send traffic from A to interface B and vice versa.
I created a single raw socket and I used it to send data to both servers by 2 different interfaces.is there any reason to why not use the same socket in order to send from interface A or B? I am asking if it’s a good practice? problems and etc

It will be great if you can clarify to me how socket is not binded to a physical interface in the underline. this is the reason that it seems strange to me that the same raw socket use to send data for different interfaces.

Answer 1

There is no problem to use the same raw socket for two different interfaces. the use in the specific interface is done when you call to send.