[c-nsp] VLSM

[Ted Mittelstaedt]

Shaun,

  Here are 3 documents that I use as quick guides to allocation
of subnets out of our own /19, and that may help you to
understand the idea of VLSM better:

http://www.freebsd-corp-net-guide.com/CIDR/cidrtable.txt
http://www.freebsd-corp-net-guide.com/CIDR/IP_Conversion.htm
http://www.freebsd-corp-net-guide.com/CIDR/IPSubnetTable.txt

  If you take my advice before you start carving you will invest
the time into running a package such as:

http://www.freeipdb.org

  While this may seem like more work initially than just using a
spreadsheet, in the long run it will save you a great deal of time.

Ted

> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net
> [mailto:cisco-nsp-bounces at puck.nether.net]On Behalf Of Shaun
> Sent: Monday, January 10, 2005 1:45 PM
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] VLSM
> 
> 
> I dont have a huge amount of /24's and i need to start carving 
> them up.  I
> found on cisco.com some docs about VLSM and was hoping to get 
> some feed back
> from some of you about if one should use it or not.  The 
> concept of it is
> great, every customer has a diffrent need for how many ips 
> they need and
> rather than carving up one /24 into /29's, another into /28's 
> or whatever i
> could create a subnet to fit my customers exact needs.  Just 
> so you know, if
> it matters, this is for dedicated servers and colocation customers.
> 
> Thanks in advance.
> 
> Shaun
> 
> 
> 
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