Proxy Web servers
If you are using the WebAgent through a switch
port configured for Static port security, and your browser access
is through a proxy web server, then it is necessary to do the following:
Enter your PC or workstation MAC address in the port's Authorized Addresses list.
Enter your PC or workstation's IP address in the switch IP Authorized managers list. See Using Authorized IP Managers.
Without both of the above configured, the switch detects only the proxy server's MAC address, and not your PC or workstation MAC address, and interprets your connection as unauthorized.