Network Utility reports IP addresses for inactive Ethernet interfaces

If you use Network Utility to check Info on an inactive Ethernet port, you'll see it has an IP address of 144.3.8.0 or 6.3.6.0.

This eccentricity of Network Utility does not mean the interface is really active. If you want to avoid this confusion, review the IP addresses of active interfaces in Apple System Profiler, System Preferences, or Terminal (using the ifconfig command).

Published Date: Feb 19, 2012