Re: About War Driving ..



Many operating systems can temporarily change the MAC on the fly. In
Linux and FreeBSD I believe it's a simple flag to ifconfig. There's
an app called "sea" for OpenBSD (set ethernet address) which
accomplishes the same thing. The capability is in the kernel, but
ifconfig doesn't give you access to it.

If this person can crack WEP, the chances are good that the attacker
also has a few authorized MAC addresses logged, and would have no
problem "cloning" a valid MAC, thus bypassing the MAC filter.

Your options are few. Here are some ideas:

Get an access point that supports WPA. Even if it's WPA-PSK, it's
better than WEP.

Set the wireless access point up on a separate network with no
outbound access, only access to a VPN server. The VPN server will act
as a router to let authorized users "out of the sandbox" so to speak.
Free VPN servers and clients are available for most platforms.





On 2/19/07, nospam <nospam@xxxxxxxxxx> wrote:
How about blocking the MAC ADDRESS? of those two computers IPs?

most wireless routers have an allow/disallow MAC Filter

--

http://www.focushacks.com/focushacks-gpg.txt - My GPG encryption key



Relevant Pages

  • Re: Cant change MAC address of my WAG311
    ... >> which changed the MAC address in the ifconfig ath0 output. ... > exit 0 ... > # Random D-Link Card ...
    (freebsd-questions)
  • =?utf-8?Q?=E7=AD=94=E5=A4=8D:_Find_MAC_address_stored_in_N?= =?utf-8?Q?IC_firmware?=
    ... Find MAC address stored in NIC firmware ... hardware address stored in the NIC firmware is not changed. ... I checked ifconfig, ip, lspci, dmidecode, ... MAC address of an Ethernet card? ...
    (RedHat)
  • Re: Find MAC address stored in NIC firmware
    ... Find MAC address stored in NIC firmware ... hardware address stored in the NIC firmware is not changed. ... I checked ifconfig, ip, lspci, dmidecode, ... MAC address of an Ethernet card? ...
    (RedHat)
  • Re: Two NICs
    ... can I find which NIC as been assigned to eth0, and which to eth1? ... that ifconfig returns the MAC address of each eth* device - but the ... problem is that I do not know what MAC address corresponds to what NIC to ...
    (comp.os.linux.hardware)
  • Re: eeprom local-mac-address?
    ... Sorry, forgot to write that part...no, that mac address does not show ... up in the output of 'ifconfig -a'. ... > then there seems to be something pretty wrong with the networking setup ... I don't have hme0 set-up. ...
    (comp.unix.solaris)