When a VCenter with an IPv6 address is accessed across a VPN, you may need to change the MTU rate to 1300 to allow the VCenter to be added to CC-SG.
See Also
Configuring the Virtual Infrastructure in CC-SG
Terminology for Virtual Infrastructure
Add a Control System with Virtual Hosts and Virtual Machines
Add a Virtual Host with Virtual Machines
Edit Control Systems, Virtual Hosts, and Virtual Machines
Delete Control Systems and Virtual Hosts
Delete a Virtual Machine Node
Delete a Virtual Infrastructure
vSphere 4 Users Must Install New Plug-In
Minimum Permissions Required in VCenter
Add the CC-SG IP Address to Internet Explorer Trusted Sites Internet Zone
Install the VMware Remote Console Plugin Manually When VCenter is Not Added