We have two 2008 server boxes with Hyper V loaded and virtual servers running\nhappily. We use a product called GeoCluster to replicate from on elocal disk\nto another, allowing us to separate the two servers from a shared disk\nresource.\n\nWith this configuration,we can run a cluster that is geographically\ndispersed and has nodes in seperate subnets on our WAN. Where we run into a\nproblem is that virtual machines in the cluster do not change IP addresses\nwhen they migrate from one host to another.\n\nWriting a script to change the IP address and gateway address is fairly\ntrivial. Where I am stuck is how to trigger that script? Does 2008 failover\nprovide any way to call a routine only when failover occurs?