22 Sep 08 Wireless Hacking, Problems with WEP, Wireless Security and WPA

Unfortunately today there are still a huge range of wireless OEM equipment being shipped with WEP as standard. WEP has been known as vulnerable for a long time. This HOWTO assumes Linux familiarity, compatible hardware, the ability to read and troubleshoot, and a brain.

Hacking your wireless network is not difficult, and here’s a procedure you can use to test:

You’ll need:
1. A PC and wireless network.
2. A linux PC/laptop with a wireless networking device

Method:
1. Boot your (debian) pc
2. wget http://download.aircrack-ng.org/aircrack-ng-1.0-rc1.tar.gz
3. tar -xzf aircrack-ng-1.0-rc1.tar.gz
4. cd aircrack-ng-1.0-rc1
5. ./configure
6. make
7. make install

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Tags: access point, aircrack, aircrack-ng, aireplay-ng, airodump-ng, arp, crack wep, handshake, Linux, wep cracking, wpa

26 May 08 Custom linux router, routing, split access and more..

So, now I have got this router set up and working, it was time to customize it somewhat.

In terms of networking, we have 3 10/100 ethernet ports and one wireless adapter, and this is set up as follows:

Internet comes in to eth1 and eth2, both of which have public IPs. eth0 which is another ethernet interface is bridged with ath0 which is my wireless interface (in master mode, with WPA-PSK/TKIP with hostap running) to form br-lan, whos IP is 192.168.100.1and is connected via a switch to feed the LAN PCs

I’m using a pretty simple netfilter masquerade script in use with this for NAT.
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Tags: bridge, ethernet, hostap, IP, load balance, multiple providers, router, split access, upnp, wireless, wpa