Local binding configuration structure of UDP port.
struct{ WORD wLocalBindUdpMinPort; WORD wLocalBindUdpMaxPort; BYTE byRes[60]; }NET_DVR_LOCAL_UDP_PORT_BIND_CFG, *LPNET_DVR_LOCAL_UDP_PORT_BIND_CFG;
Port bind strategy: provide a port number segment to ensure all used port numbers are in the segment (except multicast); the ports from port pool are tried to bind one by one until the port is not occupied, if all ports are occupied, error will be returned; binding the system reserved ports (form 1 to 1024) is not suggested.
The maximum port number to be bound should be equal to or larger than the minimum port number, [0,0]: clear the binding; [0,non-0]: setting failed, as 0 can't be bound.