Nortel 1110 User Guide

  Nortel IP Phone 2004

553-3001-368 Standard 26.00 August 2007

When the Speed option appears, select one of the following:

•

0 for 10 Mbps

•

1 for 100 Mbps (default)

Select OK to confirm the change.

Restart the IP Phone 2004. The firmware settings are read and are 
applied to UPLINK and the PC Ethernet Port.

When the IP Phone is restarted, the firmware reads the setting for Full Duplex 
mode and sets the LAN Ethernet port, PC Ethernet port, duplex, and speed 
accordingly.

Use Procedure 13to confirm activation of Full Duplex mode.

Double-click the Services key. The Network Diagnostics menu appears.

Select Ethernet Statistics.

•

If Full Duplex mode is active, the following is displayed:

—

Link: UP

—

Duplex: Full

—

Speed: 10 (Mb) or 100(Mb)

—

Auto-Negotiate Capability: N

—

Auto-Negotiate Completed: N

Gratuitous Address Resolution Protocol (GARP) Protection prevents the 
IP Phone 2004 from GARP Spoof attacks on the network. In a GARP Spoof 
attack, a malicious device on the network takes over an IP address (usually 
the default gateway) by sending unsolicited (or Gratuitous) ARP messages,