Gratuitous Address Resolution Protocol Protection; Extensible Authentication Protocol; Bluetooth Wireless Technology; Redeploying An Ip Phone 1140E - Nortel 1110 Fundamentals

372 Nortel IP Phone 1140E
For further information about TFTP firmware upgrade, see
Server" (page

Gratuitous Address Resolution Protocol Protection

Gratuitous Address Resolution Protocol (GARP) Protection protects the IP
Phone 1140E 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,
thus manipulating the ARP table of the victim machine. The malicious
device launches a variety of attacks on the network, that results in undesired
traffic routing. For example, a GARP attack can convince the victim machine
that the malicious device is the default gateway. In this scenario, all traffic
from the victim machine flows through the malicious device.
To enable GARP Protection during configuration, see
"Installing the IP Phone 1140E" (page

Extensible Authentication Protocol

Extensible Authentication Protocol (EAP) is a general protocol that fulfills
the protocol requirements defined by 802.1x. For further information about
802.1x, see
455).

Bluetooth wireless technology

The IP Phone 1140E supports Bluetooth wireless technology. For
information about configuring Bluetooth wireless technology on the IP
Phone 1140E, see

Redeploying an IP Phone 1140E

You can redeploy an existing previously configured IP Phone 1140E on the
same Call Server. For example, the IP Phone 1140E can be assigned to
a new user (new TN) or to an existing user who moved to a new subnet
by changing the TN of the IP Phone 1140E. For further information, see
Converging the Data Network with VoIP Fundamentals (NN43001-260).
Procedure 77
Changing the TN of an existing IP Phone 1140E
Step
1
Copyright © 2003–2007, Nortel Networks
.
533).
Appendix "802.1x Port-based network access control" (page
Appendix "Bluetooth wireless technology" (page
Action
Repower the IP Phone 1140E.
During the reboot sequence of a previously configured IP Phone, the
IP Phone 1140E displays the existing node number for approximately
five seconds.
Nortel Communication Server 1000
IP Phones Fundamentals
NN43001-368 01.02 Standard
Release 5.0 20 June 2007
Appendix "TFTP
Procedure 74
361).
517).