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i was wondering about this a long time ago and finally decided to ask. how is it that you can have a subnet mask of 255.255.254.0 it doesnt make any sense to me, unless im thinking of it wrong... well if someone could give me an answer to this, thanks.
What you're asking for involves a detailed reply regarding binary and 32 bit addressing.
I'm willing to bet if you search online for 'Subnetting' or 'TCP/IP addressing' you'll find all the information you want. Check it out.
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well the last time i heard, you cant have a subnet mask of /23 and i was taught how to do subnetting and so i tried figuring the IP ranges of this, but you cant because the 1-2 is the network address and broadcast address and 3-4 is the same and 5-6 is the same. it makes no sense.
and if you wonder why i ask, it's because my computer has a subnet mask of /23 and it has internet access.
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Here is a quick explanation.
The 23 is how many of the 32 bits are used for the network address.
If you have a mask of 24 then your mask will be 255.255.255.0.
or 11111111.11111111.11111111.000000000
if you count the 1's you should have 24 (if I counted my keystrokes right) of them and the last 8 bits are the client address.
So if your mask is 23 then
11111111.11111111.11111110.00000000
or
255.255.254.0
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FBI agent, I think at one time there was a guy who asked this question in this forum, and you tried to answered his question. If I remember it right, the guy tries to have a subnet mask of 255.255.253.0. That is impossible because subneting based on the power of 2 when doing you bit calculation. And Chris is right on the subnet/23. The 23 represents the bits for network. Because the current ip uses 4 oct and makes up of 32 bits, just use the 32-23 = 9 which is your hosts, or subnet = 255.255.254.0.
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oh cool someone answered.
yeah i remember seeing that one, ip256. but my computer actually has a subnet of /23 and that obviously means 255.255.254.0 and that also leaves no room for an IP address, does it not? so thats what my question is, does it leave room and am i missing something or what?
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