Принять IP пакет

OpenPort()
{
    ClosePort();
    m_sock = -1;
    m_connection_state = false;
 
    double current_time = GetTickCount();
    if ( (current_time - m_last_connect_try) < m_read_timeout )
    {
        usleep(10000);  //мкс
        return false;
    }
 
 
 
    if ((m_sock = socket(AF_INET, SOCK_RAW , IPPROTO_UDP)) < 0) {
        return false;
    }
 
    timeval timeout = {0, 0};
    timeout.tv_usec = 0;
    timeout.tv_sec = (int)((double)m_read_timeout/1000);
 
    if (setsockopt(m_sock, SOL_SOCKET, SO_RCVTIMEO, (char*)&timeout, sizeof(timeout)) < 0);{
 
    }
 
    int buffsize = MAX_UDP_BUFFER;
    if ( setsockopt(m_sock, SOL_SOCKET, SO_RCVBUF, reinterpret_cast<const char*>(&buffsize), sizeof(buffsize)) < 0 )
    {
    }  
 
    m_connection_state = true;
    return true;
}

struct sockaddr_in echoclient;
    char buffer[MAX_UDP_BUFFER];
    unsigned int echolen, clientlen;
    clientlen = sizeof(echoclient);
    int nNumberOfBytesReaded = -1;
    if (m_connection_state == true )
    {
        nNumberOfBytesReaded = recvfrom(m_sock, buffer, MAX_UDP_BUFFER, 0,
                                (struct sockaddr *) &echoclient, &clientlen);
    }

m_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL))

m_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_IP))