Cluster - change the IP to Master node and to slave

[Gianni]

Hi,
I have a cluster with two nodes:

Master: 192.168.0.1
Slave: 192.168.0.2

On cluster there are 12 VM.
For various reasons I must change the IP of both nodes.

New IP master: 192.168.0.240
New IP slave: 192.168.0.241

What is the best way?
If I don't want stop the VM is possible change the IP of nodes?

Can I follow this issue:
http://pve.proxmox.com/wiki/Proxmox_VE_Cluster#Delete_and_recreate_a_cluster_configuration



Thanks,
Jan