Wireless Security
arp cache poisoning on a wifi network Jul 16 2008 10:51PM
Robin Wood (dninja gmail com)
Hi
I'm trying to get arp cache poisoning working on my wireless network.
The setup is an AP with IP 192.168.0.100, a client with IP .55 and an
attacker with IP .56. All devices can ping each other and looking at
the arp table shows that they all know the MAC addresses of the
others.

I'm trying to use arpspoof to do ARP spoofing against the AP.

On the attacker machine I've used the command:

arpspoof -i ath0 -t 192.168.0.55 192.168.0.100

but get the response

"arpspoof: couldn't arp for the host 192.168.0.55"

If I try the attack the other way so targetting the AP it still fails.

Looking at the FAQ on monkey.org it says that this error is because
the machines must be on the same subnet but they are in this
situation, aren't they?

If not, what is the best way to poison a wireless network?

Robin

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