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Old March 9th 09, 02:39 AM posted to microsoft.public.windowsme.networking
Andy.h
External Usenet User
 
Posts: 1
Default Detect ARP poisoning(ARP spoofing) & ARP flooding

Address Resolution Protocol (ARP), because of its simpleness, fastness, and
effectiveness, is becoming increasingly popular among internet raggers, thus
causing severe influence to the internet environment.
ARP spoofing, also known as ARP poisoning or ARP Poison Routing (APR), is a
technique used to attack an Ethernet wired or wireless network which may
allow an attacker to sniff data frames on a local area network (LAN), modify
the traffic, or stop the traffic altogether (known as a denial of service
attack). The attack can obviously only happen on networks that indeed make
use of ARP and not another method.

First, let me introduce you the tools I use are Ax3soft Sax2, there are many
such tools, such as Sniffer, Snort, Ethereal, etc, I do not think that the
Sax2 is the best tool, I just think that Sax2 is easy-to-use, it can quickly
and accurately locate ARP source when ARP attack happens to the network, so
as to ensure normal and reliable network operation.

Solution:
First, launch sax2 and switch to the Diagnosis View.
Diagnosis View is the most direct and effective place to locate ARP attack
and should be our first choice. Its interface is displayed as picture1.


[img]http://www.ids-sax2.com/articles/images/QuickLocateARPAttackSource.gif[
/img] (picture1)

Picture 1 definitely points out that there are two kinds of ARP attack
event, ARP Scan and ARP MAC address changed, in the network, and the attack
source is clearly given at the bottom. Meanwhile, Sax2 NIDS will provide
reasons of such ARP attacks and corresponding solutions.