ZCC handling customers with similar IP ranges

Hi guys,

As a service provider we are running into situations where customers have private IP addresses for their hosts that are overlapping addresses and routes with customers already replicating to our ZCC. I.E. 10.0.0.x, 172.16.0.x, etc.

How are providers handling that problem? Obviously our infrastructure needs to understand that 10.0.0.99 from Customer A is different that 10.0.0.99 from Customer B.

Any thoughts are appreciated. Thanks in advance.