I asked a question in regards to this a couple of days ago and, after doing some research, I would like input on the following scenario:
2 4402 controllers running 126.96.36.199. 2 new 4404 controllers running 4.2.112. Could I upload the configs on the 4402s to a TFTP server, downgrade the code on the 4404s to 188.8.131.52, download the old config on the new controllers, upgrade the new controllers back to 4.2.112?
Is this scenario plausible, or is there a better way?