Why would an administrator be unable to locate an IP address for a vSphere vmnic uplink?

In vSphere, vmnics are physical network interface cards that operate strictly at Layer 2, forwarding frames between the virtual switch and the physical network without any IP address assignment. IP addresses are configured only on VMkernel (vmk) adapters, which are logical virtual NICs used for host management, vMotion, iSCSI, and similar functions. This architectural separation is why no IP address can ever be found on a vmnic.

ESXi vmnics operate at Layer 2, not Layer 3; Layer 3 communication is handled by VMkernel adapters that carry IP addresses, not by the physical vmnics themselves.

ESXi does not apply NAT translation to vmnic traffic; NAT is not a vSphere host networking feature, and its absence has nothing to do with why vmnics lack IP addresses.

The reason an IP address is not visible for a vmnic is not a display limitation - vmnics genuinely do not have IP addresses assigned by design, making this answer architecturally incorrect.