On Aug 14, 2009, at 2:49 PM, Paolo Viotti wrote:

Hi,

I'm using the boost library to create and manage a UDP socket. I was wondering if there is a way to know the public address of my machine using the boost classes. With this code

udp::endpoint thisendpoint(udp::v4(), UDPPORT); boost::asio::ip::address myaddress = thisendpoint.address(); std::cout<< "__My IP address: " << myaddress.to_string() << std::endl;

I can only print the any_address (0.0.0.0)... thanks,

p_viotti _______________________________________________

You can always adress your own machine via the special ip adress 127.0.0.1 (or the special domain localhost) ------ What is a woman that you forsake her, and the hearth fire and the home acre, to go with the old grey Widow Maker. --Kipling, harp song of the Dane women Tommy Nordgren tommy.nordgren@comhem.se

Hello Paolo,

I'm using the boost library to create and manage a UDP socket. I was wondering if there is a way to know the public address of my machine using the boost classes.

Using a resolver to retrieve the address from the host name seems to do the trick: #include <iostream> #include <boost/asio.hpp> int main(int argc, char** argv) { boost::asio::io_service io_service; boost::asio::ip::tcp::resolver resolver(io_service); boost::asio::ip::tcp::resolver::query query(boost::asio::ip::host_name(), ""); boost::asio::ip::tcp::resolver::iterator it = resolver.resolve(query); boost::asio::ip::tcp::endpoint endpoint = *it; std::cout << endpoint.address().to_string() << '\n'; return 0; } Cheers, Bjorn Karlsson www.skeletonsoftware.net