On 12.01.2019 12:30, Osman Zakir via Boost-users wrote:
I was also told that the problem could be either my network environment, something in my code, or both, and I was just giving info to help with figuring out which one it might be. And notice that I did also ask about a problem with building Boost, too.
Now, to ultimately check where the problem is, here's a homework for you. Write the code using the plain sockets (WinSock2 on Windows) that binds the TCP socket to the address you wish to bind your acceptor to. If the bind doesn't fail, it is a problem with the boost library, and return here for more help. If the bind fails, it is a problem outside the boost library. In this case, first read the following, then read some network introduction books and then seek help on network forums. IP addresses you see from outside your local network (possibly from the Internet) are typically not the IP addresses that belong to your local computer but are NAT mapped by some router in your environment. You mentioned that you computer has loopback and a network interface with an IP address in range 192.168.x.x. That's typical home environment. The latter address is a private number belonging to your private network and is not visible from outside, hence some piece of equipment in your environment is mapping this private number into external IP address (usually assigned by ISPs). Generally, you cannot reach a computer behind the router that uses NAT from the outside using the externally visible IP address. Unless you configure the router properly. You cannot bind a socket to the IP address that is not an IP address of a network interface on your computer. When calling bind, unless having a very good reasons against it, one typically binds to INADDR_ANY (IP address 0.0.0.0) which binds a socket to all network interfaces on your local computer. Good luck , Leon