Router Charts

Router Charts

Router Ranker

Router Ranker

Router Chooser

Router Chooser

NAS Charts

NAS Charts

NAS Ranker

NAS Ranker

More Tools

More Tools

Wireless How To

Finding the Four-way Handshake

To make sure we captured a authentication handshake, we can use the network protocol analyzer Wireshark (formerly Ethereal). Wireshark allows us to view packet contents and sort by type of packet captured to pull out the WPA handshake.

Open up Wireshark (Backtrack > Privilege Escalation > Sniffers) and open the Kismet capture "dump" file (Kismet-<date>.dump) to view all the captured packets. The WPA four-way handshake uses the Extensible Authentication Protocol over LAN (EAPoL).

Using Wireshark, we can filter the captured packets to display only EAPoL packets by entering "eapol" in the filter field (Figure 7).

EAPoL filter applied to captured packets

Figure 7: EAPoL filter applied to captured packets

Here, we're basically looking for four packets that alternate source, client-AP-client-AP (I've highlighted them in red in Figure 7).

Now that we've confirmed that we've captured a four-way handshake it's time to perform the crack.

Amazon Top-Selling Wireless Routers

More Wireless

Win This!

NETGEAR R7500

 

You could win a NETGEAR R7500 Nighthawk X4 Router

Learn How!

Top Performing Routers

AC3200
AC2350
AC1900
AC1750
AC1200

Top Performing NASes

NoRAID
RAID1
RAID5

Over In The Forums

Hello. I'm testing the whatsapp voice calls. The problem is that I hear but I do not listen to me. I think it is problem with the router or somethin...
Hi, I would like to customize the syslogd daemon to log to an external syslog server. Where can I do that ? My first idea is to use init-start scri...
I was wondering, do you guys happen to know any Wifi router that will allow me to limit bandwidth per wireless client? I have a 4G connection that I ...
They collect vary things about you eg ip, mac, location and more.
I've found this in the router's log. I'll need to investigate what's going on on that client (192.168.1.44), but wouldn't it be wise to prevent login ...

Don't Miss These

  • 1
  • 2
  • 3