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 Post subject: supernetting v subnetting
 Post Posted: Mon May 31, 2010 8:18 am 
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Joined: Thu Sep 04, 2008 7:30 pm
Posts: 80
I am a confused about the difference between subnetting and supernetting. I understand both are designed to get more usable networks. Would I be right in saying that subnetting takes a subnet such as 11111111.11111111.11111111.00000000 or 255.255.255.0 and borrows from the last octet to change it to 11000000 or 192 for example (only last octet is shown). This would give you 4 more networks.
If that is correct does supernetting simply take that idea and move it to the left instead of the right? In other words take the above subnet and change it to 11111100.00000000 or 252.0 for example (only last 2 octets are shown)
Can someone please explain how this works. I am pretty sure I understand subnetting and could do some subnetting but how supernetting fits in is getting me.
Thanks in advance.


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 Post subject: Re: supernetting v subnetting
 Post Posted: Mon May 31, 2010 10:02 am 
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Joined: Sun Feb 04, 2007 11:44 am
Posts: 5803
There is an excellent tutorial on subnetting (and supernetting) here. The original proposal for supernetting can be seen here. The latter is more of a backbone/ISP concern. Scott.


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 Post subject: Re: supernetting v subnetting
 Post Posted: Mon May 31, 2010 10:24 am 
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Joined: Thu Sep 04, 2008 7:30 pm
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great thanks!


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