I tried to change ip adresses but it still doesnt work

thanks my friend, I read the note but I still cant solve the problem.

my LAN ip is <snip>
I wonder that: if I must change the adress in the both program codes
to that ip or it must stay the same...

hello friends,

I have two program: receive.cpp and send.cpp

They re very simple, when compiling there is no error in both.

I only wanna see them to talk to each other but when run these...