We have a Cisco layer two switch configured for a 3 Host Cluster's VMKernel connections.The Hosts are running ESX 3.5 and only use VMKernel for VMotion and all VMotion IP's are in the same subnet. The Default Gateway configured on each of the Hosts is also the Managment IP of the switch and our Network Team would like to standardise this and therefore change it.

My question is simple, do we require a default gateway for VMotion if all IP's are on the same subnet and if so does the IP have to exist (can we just plug a dummy address in)?

Many Thanks

Chris.