Vista MAC filtering problem

My friend has a D-link router. His daughter got a Sony laptop with Vista
home premium.
The computer was able to connect to the router.
We decided to add MAC filtering so we added the MAC address of the
wireless card and the wired card.
The computer cannot connect wirelessly when we switch on the MAC filtering.
When we hook up the wired card, it then works fine.

My question is, is this a known problem with Vista or the Sony wireless
card?
Does MAC filtering also apply to wired cards (if I remember it does)?

Jeff Liebermann wrote:
> On Sun, 07 Sep 2008 20:15:36 -0400, Tim <(E-Mail Removed)> wrote:
>
>> My friend has a D-link router. His daughter got a Sony laptop with Vista
>> home premium.
>> The computer was able to connect to the router.
>> We decided to add MAC filtering so we added the MAC address of the
>> wireless card and the wired card.
>> The computer cannot connect wirelessly when we switch on the MAC filtering.
>> When we hook up the wired card, it then works fine.
>>
>> My question is, is this a known problem with Vista or the Sony wireless
>> card?
>> Does MAC filtering also apply to wired cards (if I remember it does)?
>
> Nope. It's a know problem with users that don't supply numbers with
> their questions. What model number DLink and what model number Sony
> laptop?
>
> The usual problem is that the wrong MAC address is used for the laptop
> wireless. Each network "interface" on the laptop has a slightly
> different MAC address.
>
> On the Sony laptop with the Vista nightmare, do this:
> Start -> Run -> cmd <enter>
> ipconfig /all | more
> You should get a list of "interfaces", each with a corresponding MAC
> address.
>

We checked the MAC address more than once.

Jeff Liebermann wrote:
> On Sun, 07 Sep 2008 20:15:36 -0400, Tim <(E-Mail Removed)> wrote:
>
>> My friend has a D-link router. His daughter got a Sony laptop with Vista
>> home premium.
>> The computer was able to connect to the router.
>> We decided to add MAC filtering so we added the MAC address of the
>> wireless card and the wired card.
>> The computer cannot connect wirelessly when we switch on the MAC filtering.
>> When we hook up the wired card, it then works fine.
>>
>> My question is, is this a known problem with Vista or the Sony wireless
>> card?
>> Does MAC filtering also apply to wired cards (if I remember it does)?
>
> Nope. It's a know problem with users that don't supply numbers with
> their questions. What model number DLink and what model number Sony
> laptop?
>
> The usual problem is that the wrong MAC address is used for the laptop
> wireless. Each network "interface" on the laptop has a slightly
> different MAC address.
>
> On the Sony laptop with the Vista nightmare, do this:
> Start -> Run -> cmd <enter>
> ipconfig /all | more
> You should get a list of "interfaces", each with a corresponding MAC
> address.
>

I was asking a general question about Vista and any of Sony's new laptops.
If there is a known problem, then I can give more specifics.

Tim wrote...

>Jeff Liebermann wrote:

>> The usual problem is that the wrong MAC address is used for the laptop
>> wireless. Each network "interface" on the laptop has a slightly
>> different MAC address.
>>
>> On the Sony laptop with the Vista nightmare, do this:
>> Start -> Run -> cmd <enter>
>> ipconfig /all | more
>> You should get a list of "interfaces", each with a corresponding MAC
>> address.
>>
>
>We checked the MAC address more than once.

How many interfeace did you see?
Since you used "address" (singular) instead of "addresses" (plural),
maybe you should re-check one more time.

Harry331 wrote:
> Tim wrote...
>
>> Jeff Liebermann wrote:
>
>>> The usual problem is that the wrong MAC address is used for the laptop
>>> wireless. Each network "interface" on the laptop has a slightly
>>> different MAC address.
>>>
>>> On the Sony laptop with the Vista nightmare, do this:
>>> Start -> Run -> cmd <enter>
>>> ipconfig /all | more
>>> You should get a list of "interfaces", each with a corresponding MAC
>>> address.
>>>
>> We checked the MAC address more than once.
>
> How many interfeace did you see?
> Since you used "address" (singular) instead of "addresses" (plural),
> maybe you should re-check one more time.
>
>
>

There were several (I think around 4) but the two that I used were
labeled in such a way that I knew which one was for the wired network
card and which one was for the wireless network card.
I used the ipconfig /all command and that gave a description of the card
that the MAC address belonged to, either company name or a good enough
description.

Bill Kearney wrote:
>> Does MAC filtering also apply to wired cards (if I remember it does)?
>
> MAC filtering in many routers covers the wireless connections only. But
> given how trivially simple it is to defeat, MAC filtering often ends up
> being more trouble than it's worth. As you've discovered.

Why is it easier to defeat? How do other people know what MAC addresses
I have given permission to? Do they sniff the signals from wireless
cards and determine the MAC addresses of those that are accepted?

On Sat, 13 Sep 2008 14:24:39 -0400, Tim <(E-Mail Removed)> wrote:

>Bill Kearney wrote:
>>> Does MAC filtering also apply to wired cards (if I remember it does)?
>>
>> MAC filtering in many routers covers the wireless connections only. But
>> given how trivially simple it is to defeat, MAC filtering often ends up
>> being more trouble than it's worth. As you've discovered.
>
>Why is it easier to defeat? How do other people know what MAC addresses
>I have given permission to? Do they sniff the signals from wireless
>cards and determine the MAC addresses of those that are accepted?

In a word, yes.