[racktables-users] Re: Subnetting

Hi,

Got a chance to test that. Very nice. Bit confused about the Here Be Dragons
images though?
Anyway here's a trickier one - Let's say I've a /30 assigned to a server and
it needs to be increased to a /28 for example. How would a human achieve
this task?



On 7 September 2010 16:50, David Comerford <davestyle@xxxxxxxxx> wrote:

> Great stuff,
>
> Thanks guys
>
>
> On 7 September 2010 01:42, Michael Richardson <mcr@xxxxxxxxxxxx> wrote:
>
>>
>> >>>>> "David" == David Comerford <davestyle@xxxxxxxxx> writes:
>>    David> I work for a hosting provider which has a few assignments of
>>    David> /19 and /20 IP blocks.  At the moment we use bloody
>>    David> spreadhseets to track them in blocks of /24. On the plus side
>>    David> it does make it easy to further subnet down to /29's and
>>    David> /30's for dedicated servers.
>>
>>    David> If we add our existing /24's to RackTables, how would we go
>>    David> about subnetting them into smaller blocks? Would it be a case
>>    David> of deleting a whole prefix and adding the split up chunks
>>    David> back in?
>>
>> It's not obvious, but after you add the /24 in, and then you add a /29
>> or something within the /24, the rest of the space gets marked as
>> 'empty' and you can create subnets within it.
>>
>> --
>> ]       He who is tired of Weird Al is tired of life!           |
>>  firewalls  [
>> ]   Michael Richardson, Sandelman Software Works, Ottawa, ON    |net
>> architect[
>> ] mcr@xxxxxxxxxxxxxxxxxxxxxx http://www.sandelman.ottawa.on.ca/ |device
>> driver[
>>   Kyoto Plus: watch the video <http://www.youtube.com/watch?v=kzx1ycLXQSE
>> >
>>                       then sign the petition.
>>
>>
>

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