Changing subnet of existing Cluster

Hi,

As a follow-up on a previous post:

http://social.technet.microsoft.com/Forums/en-US/winserverClustering/thread/2b2f3a52-63b7-4639-8d2d-8adbfea5ad3b

Our main network is running on SM of 255.255.255.0, but the Cluster has been assigned 255.255.0.0. From what I understand the Cluster is normally on the same SM. Should I bother changing it? Looking at the Settings under Failover Cluster Manager I have the option to change the IP but not the SM.

Would I have to follow the same process as Gunther Danzeisen's answer here:

http://social.technet.microsoft.com/Forums/en-US/winserverClustering/thread/28165ecd-22e8-463d-95e3-bc10dd843f20

Thanks!