Active/Passiv Cluster with Percona

Hey guys,
after i setup a failover cluster with mysql replication (binlog&relaylog) with heartbeat as floating ip, i have change my choice about mysql replication clustering.
now i use percona and it works fine.
i got some trouble with the floating ip, created by heartbeat.
my company got two database servers (for failovercluster) in different subnets, and the floating ip dosnt works.
now i search a solution like floating ip, to start a active passive cluster.

can you help me?