#define CTL_NET_IPv4_LOCAL_BROADCAST_ADDR 0xFFFFFFFF
CTL_NET_IPv4_LOCAL_BROADCAST_ADDR is the IP broadcast address 255.255.255.255. It is the broadcast address of the zero network (0.0.0.0/0), which in IP standards stands for this network, i.e. the local network. Transmission to this address is limited by definition—it is never forwarded by routers that connect the local network to the Internet.