Re: WLAN security question

From:
Date: 09/30/02 

Date: Mon, 30 Sep 2002 16:34:15 GMT

Hello Andy,

The MAC addresses for both NICs and APs can be easily changed. Some cards
come with the MAC address as part of the configuration parameters. For those
that don't, you can simply add a line to the registry to define the MAC
address.

Using 128 bit WEP will slow down an attack, but it will not prevent it. You
need to make sure that the system is architected with other security as
well, at the very least use a VPN into the network.

Even with a VPN, the wireless still has vulnerabilities. A lot of
information is available on the internet regarding wireless[in]security.
These will get you started.

http://online.securityfocus.com/data/library/1x.pdf
http://online.securityfocus.com/data/library/wtls.pdf

Dennis Houchin

<Andy@nospam.co.uk> wrote in message
news:68sgpusl3d1iqqae5qemvnsatsbkq09vgv@4ax.com...
> I actually secure by WLAN by only allowing certain MAC addresses to
connect
> to the access point.
>
> A pain for a large installation but a lot easier for switching back and
> forth between the various WLANs I have set up at the different places I
> work.
>
> Is this method vulnerable to attack ? I am under the impression that the
> MAC address is hard wired in the NIC so in essence I have a hardware
> password.
>
> Please tell me what you think ?
>
> TIA
>
> Andy

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