what is the broadcast address of a Cisco router?
i was reding a book about Cisco routing, and it mentioned broadcast addresses. i administer the network at my house, and am curious about it.
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the broadcast address is the last ip on the network
so for ex. the network of 10.10.1.0/24 would be 10.10.1.255 or if your network is 10.10.1.0/25 the broadcast would be 10.10.1.127 when a packet is sent out on a broadcast if nothing is there to split it up(i.e. a router) then the packet is received by all network devices
Broadcasting is an interesting little beast. It is – these days – typically the last (typically non-usable) address within a subnet after applying a mask to it. As stated below, if you had a 10.10.10.0/24 subnet/mask, then the following would be true:
10.10.10.0 = network (non-usable)
10.10.10.255 = network broadcast (usually non-usable)
10.10.10.1 – 254 = usable addresses within the subnet
There is another type of broadcast, often called “all-nets” broadcast and back in the day, it could cause some securtiy issues, and that is the 255.255.255.255 address (a broadcast to all networks). Hope some of this helps.