setsockopt($sock, Socket::SOL_SOCKET, Socket::SO_BINDTODEVICE, $bind_iface_raw)
|| die "Unable to bind socket to interface '$bind_iface': $!\n";
}
setsockopt($sock, Socket::SOL_SOCKET, Socket::SO_BINDTODEVICE, $bind_iface_raw)
|| die "Unable to bind socket to interface '$bind_iface': $!\n";
}