can an ip address end in 0?

Answer 1

Nope, that is a reserved network address. It simply can't be used for anything other than that.
Here is a full explanation if you want..
http://expertanswercenter.techtarget.com/eac/knowledgebaseAnswer/0,295199,sid63_gci1053572,00.html
And a quote from that
"To help make this clear, if we selected network address 192.168.0.0/255.255.255.0 for our office, then we can say that:

The network identifier would be 192.168.0.0
The broadcast address would be 192.168.0.255
Valid (or usuable) ip addresses would be 192.168.0.1 to 192.168.0.254. "

HOWEVER. if the subnet is larger than that

"If we consider 172.16.0.0 / 255.255.0.0 as the preferred choice, then the network characteristics are as follows:

Network identifier: 172.16.0.0
Network Broadcast: 172.16.255.255
Valid (or usable) IP addresses: 172.16.0.1 to 172.16.255.254

If you take a closer look at the valid addresses, you'll notice that IP addresses 172.16.255.0 and 172.16.0.255 can be used! "
But very few networks use that scheme. Only large ones with many thousands of terminal.
So really I guess you could say it can be used but not within a class C network which most of us are used to.

Answer 2

The short answer is yes, that is valid.
The long answer is, "it depends".

We'll use a simple example to illustrate.

My linksys router at home configures the following IP network for my house
192.168.1.X / 255.255.255.0
The first 3 octets (the first 3 numbers separated by periods) are what is known as the "network", with the last octet being the host. On any network, the very FIRST address (zeros count) is known as the "network address" and is not used by a host. The very last number, in this case 255, is used for broadcasts-- sent to every computer on the network.

In this example, all of my devices (iPod Touch, Computer, network printer, linksys router, laptop computer) need an IP address. The Linksys router (by default) takes the first available address (192.168.1.1) and the rest of the addresses (from 2 thru 254) are available for any devices I wish to connect.

The network in the above example has a maximum of 254 devices attached to it. For a large business this wouldn't be enough. Instead we might use a larger pool of addresses. If we setup the network 10.X.X.X/255.0.0.0 then only the first octet (the number 10) is the network id. The remaining 3 octets can be assigned as hosts. Again, the first number is reserved for the network (10.0.0.0) and the last number is reserved for broadcast (10.255.255.255). Everything else inbetween is eligible for use for hosts (computers, printers, servers, etc etc)

Hope this helps

Answer 3

tracy is wrong...It depends on the ISP whether or not they assign IP adds ending in 0....and I know this is fact because my emule was indicating a low id but not to panic, investigating further I was told by the emuke forums that the low id was due to being allocated a dynamic IP ending in zero, I rebooted my rooter the dynamic add allocated now ended in 1 and the emule problem was gone,
So it is perfectly possible to have an ip adds ending with 0, I cannot clarify ip's ending in 255 though, I simply do not know this

Answer 4

Yes. The numbers can go from 0 to 255.

However, traditionally the "0" is used for the router on a subnet, rather than given to a computer. So it is best to avoid using the "0" address so that you do not have people "pinging" your computer and attempting to hook to it because they think it is the router.

Answer 5

Yes 0 to 255 is valid

wdw