![]() ![]() ![]() In practice, there are almost no routers forwarding broadcasts, and a lot of stacks simply send one copy of the packet to the interface where the default route points to. In principle, 255.255.255.255 is the "global" broadcast address, which means that the IP stack is supposed to send the packet to all network interfaces, and routers that are configured to forward broadcasts are supposed to send them on. If your network is 192.168.0.0/16, then your network address will be 192.168.0.0 and your broadcast address will be 192.168.255.255.ΔΆ55.255.255.255 is a special broadcast address, which means "this network": it lets you send a broadcast packet to the network you're connected to, without actually caring about its address in this, is similar to 127.0.0.1, which is a virtual address meaning "local host". If your network is 192.168.1.0/24, then your network address will be 192.168.1.0 and your broadcast address will be 192.168.1.255. A broadcast address is always relative to a given network, there is no broadcast per se when you have a network, you can compute its broadcast address by replacing all the host bits with 1s simply put, the broadcast address is the highest numbered address you can have on the network, while the network address is the lowest one (with all host bits set to 0s) this is why you can't use either of them as actual host addresses: they are reserved for this use. ![]()
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