[racktables-users] Re: Subnetting
- From: Denis Ovsienko <infrastation@xxxxxxxxx>
- To: racktables-users@xxxxxxxxxxxxx
- Date: Wed, 08 Sep 2010 11:05:57 +0400
08.09.2010, 01:58, "Tyler J. Wagner" <tyler@xxxxxxxxxxx>:
> David,
>
> Increasing an existing subnet is, unfortunately, not possible in the existing
> UI. You can create the supernet but you can't delete the subnet as long as any
> IPs within it are allocated. The way through the UI is:
>
> 1. Clear all IP properties (names)
> 2. Clear all IP allocations (associations with objects)
> 3. Delete the /30
> 4. Create the /28
> 5. Assign allocations and names again
There is another way to delete a /30, which is inside a /24, when IP
address(es) block /30 from being deletable. A UI option
"Enable IPv4 address allocations w/o covering network" disables the allocation
check and one can wipe just any network. A dangerous setting.
> The way I do it, however, is use phpmyadmin to change the subnet length field.
> Just make sure the supernet doesn't exist first.
May be, in future the interface will allow that.
--
Denis Ovsienko
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