Re: WEP unsafe, shock horror


"Richard Perkin" <f000nurdle@xxxxxxxxxxx> wrote in message
news:5nron4FjqsuuU1@xxxxxxxxxxxxxxxxxxxxx
"mentalguy2004" <none@xxxxxxxx> wrote in
news:am1Si.28203$DB2.18652@xxxxxxxxxxxxxxxxxxxx:

I understood that router encryption (WEP, WPA etc) was designed
and used to stop people intercepting (sensitive) data between a
wireless PC and router, not to prevent other people using your
internet connection.
The requirement addressed by WEP, WPA and variants is for
*authentication* and *encryption*. Unfortunately, WEP is badly
designed and has serious weaknesses both in the authentication
mechanism and in encryption.

When a WEP-encrypted wireless network has been cracked, knowledge of
the WEP key allows an intruder to correctly authenticate and
associate with the access point, and with that to gain access to
other resources on the network. Where the network includes an
Internet connection (as it will do in the usual case of a wireless
router with a WAN connection to an ISP) then Internet access is
immediately available

OK, but with MAC filters in place, is it still the case that someone can
access the net through my wireless router, even if they crack my WEP
password?

I was under the impression that *only* the PC's/laptops/PDA's that I
explicitly configure (by MAC address) in my router software, are allowed to
connect to my network/internet. I realise that if the WEP is hacked, someone
can intercept my uploads and downloads, but I didn't think they could surf
the net on my connection.


.

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