Building a supernet
Posted on 2013-11-15
Good day net-workers, I have been asked to make 15 subsets inside my plant to segregate some devices off that are causing issues as we grow.
Rather than build each route separately I was wondering how I could best go about doing this.
I remember my super-net stuff from school, kind of, but that was a very long time ago.
I have one more interface on my sonicwall, and It can be configured as whatever.
Currently we have a 10.10.x.x that is being routed by our ISP for branches etc etc, we point to their gateway for results. NOW with that said, all of these new routes are internal and should not go outside of my network.
Here is my proposal for a supernet on our last interface.
IP Range 10.227.0.0 - 10.227.15.255
THIS IS A SUPERNET OF 4094 DEVICES
Due to the nature of the data, Can I split it further into sub nets described below? with the gateway and subnets in questions, this was just a though as to control broadcast traffic within groups of machines.
IP Range 10.227.13.x
IP Range 10.227.14.x
I believe I can build the following.
10.227.0.x - 10.227.15.x
All with the same gateway but I am honestly unsure about the subnet mask.
IF i use .240 on all of them, I may run into brodcast storms?
Thoughts and opinions please.