This computer has not been assigned an IPv4 address. IPv6 is only supported in Exchange Server 2010 when it is installed ...

This computer has not been assigned an IPv4 address. IPv6 is only supported in Exchange Server 2010 when it is installed on a computer running Windows Server 2008 SP2 or R2 that has both IPv4 and IPv6 enabled. See http://go.microsoft.com/fwlink/?LinkId=102391 for more details.