IP Addressing Questions?

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Can you use a mask lower than /24 for a Class C address and lower than /16
for a Class B address while subnetting?

Also, if the mask has to be consecutive 1s and 0s why can you not have
128.0.0.0, 192.0.0.0, 224.0.0.0, 240.0.0.0, 248.0.0.0, 252.0.0.0 or
254.0.0.0?

Regards

Mark




Re: IP Addressing Questions?


Mark Scott wrote:
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Hi Mark,

You are describing supernetting. A /23 mask on a class c will combine 2
class c networks in to 1 with twice as many hosts.

Bill


Re: IP Addressing Questions?


male@mark-scott-online.co.uk says...
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The interesting here about "classes" is that address Class should not
have to do anything with network mask.

--
-Ivan.

*** Use Rot13 to see my eMail address ***


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