Aparecen caracteres confusos en el extremo receptor de la transmisión udp

DWORD dwIP;

((CIPAddressCtrl *)GetDlgItem(IDC_IPADDRESS1))->GetAddress( dwIP );

SOCKADDR_IN addrTo;

addrTo.S_addr.sin_family = AF_INET;

addrTo.sin_port = htons( 6180 );

addrTo.sin_addr.S_un.S_addr = htons( 6180 );