VMware Remote Console proxy for vSphere (VMRC proxy) is a service in the vCenter Server system which transmits the network traffic between VMRC and thе ESXi hosts. When you use the VMRC proxy, VMRC does not require direct network connection to the ESXi host.

You can enable or disable the VMRC proxy. You also can change the VMRC proxy settings to reduce the workload on the vCenter Server system.