5 Replies Latest reply on Jun 21, 2012 10:06 AM by michal.hrncirik

    Ability to change a subnet into a supernet

    misoto


      Change/edit an existing subnet and convert it into a supernet.  Ex. If I have already an existing /24 subnet and I wanted to break it down into smaller /27 subnets. I will not be able to unless I delete the subnet, recreate it into a /24 supernet and hen I can create smaller /27 subnet.  This is too much work, edit field would do the trick if possible.

        • Re: Ability to change a subnet into a supernet
          michal.hrncirik

          Hi,

          sorry this is not possible right now - you can't directly change supernet to subnet via supernet edit option. Is this a "singleshot" issue or are you doing that on regular basis? I'm trying to understand what are you trying to do because you can obviously add subnets as a part of this super net so there should not be a reason to do what you need until you don't want to have multiple supernet hierarchy.

            • Re: Ability to change a subnet into a supernet
              misoto

              Michal,

              Yes we are acquiring new office all the time so there are times where we have a /24 subnet created but not used and we would like to break it up into /27s but not able to since it's a subnet.  now being able to convert that unused /24 into a supernet, then we would be able to break it down into smaller subnets.

              • Re: Ability to change a subnet into a supernet
                lukeod

                Hi Michal,

                 

                This is a feature that we would use on a very regular basis. We have the need to create at times, many hundreds of supernets at a time. Presently, we have around 1000 supernets in IPAM.

                 

                If you have many sites that are allocated IP Ranges based on geographical area, it ends up being nessecary to create many supernets (with a big network). IP Addressing is quite different as a service provider than it is in an enterprise environment, where you tend to have fewer, but larger subnets.

                 

                Unfortunately, the only way you can do it at present is:

                 

                > Bulk create subnets

                > Hop in IPAM_Group and change the grouptype for the required subnets to '4'

                > Delete any IP Addresses in IPAM_Node that are created during the bulk import of the subnets - as supernets shouldnt have IP Addresses as children

                 

                This is hardly ideal, but creating hundreds by hand simply isn't practical, and is prone to user error.

                  • Re: Ability to change a subnet into a supernet
                    michal.hrncirik

                    Hi lukeod,

                     

                    in case you already have a spreadsheet with all supernets you want to add and you have there a column that represents the group/location then IPAM 3.0 has a new importing feature - it can also import structures which seems to be something that resolve your problem.

                    let me know if you need a help - I may jump into a quick GoTo with you.

                     

                    thanks,

                    Michal