ICDR-CSP replication (ZCC-ZCC) possible?

We are CSP and implemented Zerto in ICDR architecture[between our 2 DC’s which are located at geographically separate locations]. Now some of our customer having their own P2P links between the same sites and would like to transfer the Zerto replication traffic related to their VMs via own link. How we can segregate the respective customers replication traffic from aggregated ICDR traffic flowing between our own DC’s. If we put ZCC at both ends will it help me fulfil the requirement.