Protocol Errors
The client system must have a protocol assigned or bound to its NIC in order to access resources. You can use various tools to verify that a protocol is being used by the systemfor example, on Windows 2000/XP/2003 systems, you use the ipconfig command; on older Windows client systems, you use the winipcfg command; and on Linux, UNIX, and Macintosh systems, you can use the ifconfig command.