Reducing a /16 network to a /24
Posted on 2016-08-09
I have a live network that is in the 10.10.0.0/16 range. I am creating VLANS and subnets and moving most of the nodes out of the range all together. I was wondering though, is there a way to create a vlan/subnet in the 10.10.1.0/24 range and keep communications up until I can change the grandfathered network to the /24 range? Right now I'm going to have to take the network down, change the masks change the grandfathered range to a 24 and then create the VLAN that I need.
Anyway to do this with a live network? Working with a Cisco 6509...