Structure about DDNS information.
struct{
BYTE byDevAddress[MAX_DOMAIN_NAME/*64*/];
BYTE byDevDdns[MAX_DOMAIN_NAME/*64*/];
BYTE byDdnsType;
BYTE byRes1[3];
WORD wDevPort;
WORD wDdnsPort;
BYTE byres[64];
}NET_DVR_DDNS_ADDRESS, *LPNET_DVR_DDNS_ADDRESS;