Socket option to prevent routing, use local interfaces only.

typedef implementation_defined do_not_route;

Implements the SOL_SOCKET/SO_DONTROUTE socket option.

Examples

Setting the option:

std::experimental::net::ip::udp::socket socket(io_context);
...
std::experimental::net::socket_base::do_not_route option(true);
socket.set_option(option);

Getting the current option value:

std::experimental::net::ip::udp::socket socket(io_context);
...
std::experimental::net::socket_base::do_not_route option;
socket.get_option(option);
bool is_set = option.value();