How do I calculate the number of host addresses?

How do you calculate broadcast address?

My understanding is, that it will be something like: Sender 1 to Sender 2.

Sender 2 to Sender 3. And so on. Am I correct? And then how do I send a broadcast, with a group of IP's in it? eg. GroupA -> IP1,2,3,4. GroupB -> IP4,5,6,7. Do you then calculate the address out of the group (from first address to last)? I have tried to google it but couldn't find any info. Thanks! If you're looking for an example of an initial multicast group request which ends up broadcasting, take a look at the request for initial group subscription shown in the ARP specification. In short, after sending the request, the sender keeps the group local, and when there are "no more destinations to forward the packet" it sends the packet out as a "self-multicast".

On the receiving end, a multicast routing table is consulted. The routing table contains entries mapping source and/or destinations to network addresses which must be used to contact the source. When the multicast destination is found in the routing table, the MAC source address that sent the packet is contacted, and the packet is forwarded to that MAC address. If the destination was found, the forwarding MAC address is in the group that has been discovered, and the destination receives the packet.

What is the 255.255 255.255 address?

What is the 255.

255 address? 255 The address that defines an ip address that belongs to Class C network, the most common one used for connecting to devices in the internet. The following steps show how to determine a class C range using our favorite computer and an html page on a web server. If you look up your routers IP address, note the IP addresses of the other hosts connected, it is one of them that belongs to class C IP Address . I recommend using something like www.whatismyip.com because it will tell you the name of the ISP and your range of Class C. In this case we use the address 192.168.2 as that is the address that corresponds to the gateway. Now we would open a command prompt in c:cmd and type ping 192.

First we have to determine the gateway address, we use 192.1 as the gateway, so in c:cmd type ping 192.1 -t -s 192.4 and then type ping 192. So now the router will forward requests to the 192.2 address for internet access. Then type ping 192.2 -t -s 192.2 (to see if its still working properly). In my own situation I don't need to make sure everything works properly, there is only ever one host connected at any given time in my house, so I can rely on it working once.

255 the following steps show how to determine a class C range using our favorite computer and an html page on a web server. First we have to determine the gateway address, we use 192. When you look up your routers IP address, note the IP addresses of the other hosts connected, it is one of them that belongs to class C IP Address .

How do I calculate the number of host addresses?

I am looking to calculate the number of host addresses that are in use (ie, not in use). For a single IP address, this is easy - it's 0. But for a range of IP addresses (eg, 1.2.3.4, 1.5, 1.6, .), it becomes much more complicated.

The method I have found for calculating the number of hosts using a range of IP addresses is as follows: #!
Is there a better way to do this? You can use something like this: seq 1 6