Archived from groups: microsoft.public.windows.networking.wireless (
More info?)
WOW !!! OK folks thanks for the info, I will look into switching to WPA.
G
"Jerry Peterson[MSFT]" <jerrype@online.microsoft.com> wrote in message
news:uKLngpX3EHA.3908@TK2MSFTNGP12.phx.gbl...
> The MAC address(es) in the frames would be from your wireless adapter
and/or
> your access point. Most wireless client drivers allow the MAC address
of
> a client to be modified to any value. Simply configuring your client's
> address to that of another client would allow you circumvent the filter
and
> associate. You have discovered the exact reason why MAC filtering
provides
> zero actual security in wireless networks.
>
> You may also discover that 'hidden' networks are actually in plain view to
a
> sniffer when a client is joined to the network. Disabling the broadcast
of
> an SSID provides no actual security to a motivated attacker.
>
> There are readily available tools that allow an attacker to compromise WEP
> security. If you are concerned whether an intruder can view your network
> traffic, I strongly recommend that you switch to a WPA secured
> configuration. This will prevent unauthenticated clients from associating
> to your network, ensure the integrity of your data traffic, and likely
stop
> passive attacks to view your data traffic.
>
> --
> Jerry Peterson
> Windows Network Services - Wireless
>
> This posting is provided "AS IS" with no warranties, and confers no
rights.
>
> "Gingangooli" <iaintusingemail@itsafunnlyoldworld.com> wrote in message
> news:eVzFY7W3EHA.2788@TK2MSFTNGP15.phx.gbl...
> >
> > "Jim Fox" <NO_foxjh_SPAM@rcn.com> wrote in message
> > news:8IednXt8J9_xyCrcRVn-jw@rcn.net...
> >>
> >> "Jim Fox" <NO_foxjh_SPAM@rcn.com> wrote in message
> >> news:JIOdnS1XTLQ1zircRVn-gA@rcn.net...
> >> >
> >> > "Gingangooli" <iaintusingemail@itsafunnlyoldworld.com> wrote in
message
> >> > news:%23i012AV3EHA.404@TK2MSFTNGP10.phx.gbl...
> >> >>
> >> >> Anyone any idea of the security risk to a wireless network of having
> > your
> >> >> MAC address showing to the world, if any?
> >> >>
> >> > If you have a MAC filter on your wireless access point, then someone
> > could
> >> > spoof your MAC address and get into your network. That is not much
of
> >> > a
> >> > risk insofar as I am concerned on a home network, but add WEP or WPA
> >> > security if you are worried about it.
> >> I should have said they need the MAC address of your client card that
you
> >> have allowed through the MAC filter. I am not aware of much risk of
> >> broadcasting the MAC address of the access point itself, apart from
just
> >> showing that the access point exists.
> >>
> >>
> >
> > Ah right. Well, my router is set to "clone" the MAC address of my
"wired"
> > PC
> > (this is to stop the broadband ISP rejecting my connection as when my
> > account was set up it was registered to the NIC in my "wired" PC). But I
> > do
> > use WEP on the wireless part of my LAN. So access via the wireless
> > connection is pretty secure??? But that still means folk know the MAC
> > address of the Ethernet card???
> >
> > OH...hang on though.... I just had a thought...I must check.... the MAC
> > address visible on the sniffer prog would be the MAC address of my
> > wireless
> > card and not my primary Ethernet NIC?? I'm confused now....but thanks
for
> > the info.
> >
> > G
> >
> >
>
>
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