MAC filter problem / incompatibility?

Hi,

My router (DI-524 rev. A1, firmware 1.05) already works fine with one
computer connected through the physical port, and another one through a
wireless connection. I am using WEP (128 bits, Share key) and MAC filtering,
and am not broadcasting the SSID.

I added a laptop to the wireless network. It is a HP Compaq nc6000,
using a Intel ProSet 2200BG Wireless adapter, with the latest drivers. The
laptop connects fine if I disable MAC filters. As soon as I enable it, the
laptop cannot connect anymore. If I disable the MAC filter again, I
reconnect within seconds! (And the connection remains stable.)

I verified that the right MAC address was entered (I cloned it, before
enabling the MAC filter, and then typed it to make sure that there is no
issue with cloning, to no avail). I also tested that the laptop connected to
another network (and there was no issue there) to ensure that the problem is
on the router.

Anyone got a similar problem? Is there a known compatibility issue? I
googled about 10 different combinations and got no result... If you have
one, I'd be happy to look stupid

TIA

Dominique

"Dominique" <(E-Mail Removed)> wrote in message
news:2bKRd.46923$(E-Mail Removed). ..
> My router (DI-524 rev. A1, firmware 1.05) already works fine with one
> computer connected through the physical port, and another one through a
> wireless connection. I am using WEP (128 bits, Share key) and MAC
filtering,
> and am not broadcasting the SSID.
>
> I added a laptop to the wireless network. It is a HP Compaq nc6000,
> using a Intel ProSet 2200BG Wireless adapter, with the latest drivers. The
> laptop connects fine if I disable MAC filters. As soon as I enable it, the
> laptop cannot connect anymore. If I disable the MAC filter again, I
> reconnect within seconds! (And the connection remains stable.)
>
> I verified that the right MAC address was entered (I cloned it, before
> enabling the MAC filter, and then typed it to make sure that there is no
> issue with cloning, to no avail). I also tested that the laptop connected
to
> another network (and there was no issue there) to ensure that the problem
is
> on the router.

Did you enter the MAC address of the wireless adapter into the list of
your router ? Cause I get the impression that you entered another MAC...

Dominique wrote:
> Hi,
>
> My router (DI-524 rev. A1, firmware 1.05) already works fine with
> one computer connected through the physical port, and another one
> through a wireless connection. I am using WEP (128 bits, Share key)
> and MAC filtering, and am not broadcasting the SSID.
>
> I added a laptop to the wireless network. It is a HP Compaq nc6000,
> using a Intel ProSet 2200BG Wireless adapter, with the latest
> drivers. The laptop connects fine if I disable MAC filters. As soon
> as I enable it, the laptop cannot connect anymore. If I disable the
> MAC filter again, I reconnect within seconds! (And the connection
> remains stable.)
> I verified that the right MAC address was entered (I cloned it,
> before enabling the MAC filter, and then typed it to make sure that
> there is no issue with cloning, to no avail). I also tested that the
> laptop connected to another network (and there was no issue there) to
> ensure that the problem is on the router.
>
> Anyone got a similar problem? Is there a known compatibility
> issue? I googled about 10 different combinations and got no result...
> If you have one, I'd be happy to look stupid
>
> TIA
>
> Dominique

Forget cloning..(don't even know why you tried that!) Enter the MAC address
of the Wireless adapter (when turned on do ipconfig /all to list it).

On Sat, 19 Feb 2005 11:54:20 -0500, "Dominique"
<(E-Mail Removed)> wrote:

> My router (DI-524 rev. A1, firmware 1.05) already works fine with one
>computer connected through the physical port, and another one through a
>wireless connection. I am using WEP (128 bits, Share key) and MAC filtering,
>and am not broadcasting the SSID.
>
> I added a laptop to the wireless network. It is a HP Compaq nc6000,
>using a Intel ProSet 2200BG Wireless adapter, with the latest drivers. The
>laptop connects fine if I disable MAC filters. As soon as I enable it, the
>laptop cannot connect anymore. If I disable the MAC filter again, I
>reconnect within seconds! (And the connection remains stable.)
>
> I verified that the right MAC address was entered (I cloned it, before
>enabling the MAC filter, and then typed it to make sure that there is no
>issue with cloning, to no avail). I also tested that the laptop connected to
>another network (and there was no issue there) to ensure that the problem is
>on the router.
>
> Anyone got a similar problem? Is there a known compatibility issue? I
>googled about 10 different combinations and got no result... If you have
>one, I'd be happy to look stupid

I've never seen anything like that. However, I've accidentally
created the same problem while tinkering with spoofing MAC addresses.
Windoze does not necessarily use the hardware MAC address of the
wireless card. What appears in the registry is what Windoze uses, not
what's in the card.
http://students.washington.edu/natetrue/macshift/
http://www.gorlani.com/publicprj/mac.../macmakeup.asp
I've also created the problem when I replaced a mini-PCI wireless card
with another identical replacement card. Windoze plug-n-play detected
the card change, but for some odd reason retained the old MAC address
in the registry. It took a while to find and fix that one, but now I
look for a discrepancy in MAC addresses.

The Intel ProSet utility will show you the actual hardware MAC
address.
http://support.intel.com/support/wir.../CS-008167.htm
If you run, from an MSDOS cmd window:
ipconfig /all | more
it will show you what Windoze thinks is the MAC address for your
Wireless card. You can also use Netstumbler to see what MAC address
is being used.

If they're all the same, then I don't have a clue what's broken. If
they're different, you might wanna use one of the utilities to make
the registry and the hardware MAC addresses the same.


--
Jeff Liebermann (E-Mail Removed)
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 AE6KS 831-336-2558

"Jeff Liebermann" <(E-Mail Removed)> wrote in message
news(E-Mail Removed)...
> On Sat, 19 Feb 2005 11:54:20 -0500, "Dominique"
> <(E-Mail Removed)> wrote:
>
>> My router (DI-524 rev. A1, firmware 1.05) already works fine with one
>>computer connected through the physical port, and another one through a
>>wireless connection. I am using WEP (128 bits, Share key) and MAC
>>filtering,
>>and am not broadcasting the SSID.
>>
>> I added a laptop to the wireless network. It is a HP Compaq nc6000,
>>using a Intel ProSet 2200BG Wireless adapter, with the latest drivers. The
>>laptop connects fine if I disable MAC filters. As soon as I enable it, the
>>laptop cannot connect anymore. If I disable the MAC filter again, I
>>reconnect within seconds! (And the connection remains stable.)
>>
>> I verified that the right MAC address was entered (I cloned it, before
>>enabling the MAC filter, and then typed it to make sure that there is no
>>issue with cloning, to no avail). I also tested that the laptop connected
>>to
>>another network (and there was no issue there) to ensure that the problem
>>is
>>on the router.
>>
>> Anyone got a similar problem? Is there a known compatibility issue? I
>>googled about 10 different combinations and got no result... If you have
>>one, I'd be happy to look stupid
>
> I've never seen anything like that. However, I've accidentally
> created the same problem while tinkering with spoofing MAC addresses.
> Windoze does not necessarily use the hardware MAC address of the
> wireless card. What appears in the registry is what Windoze uses, not
> what's in the card.
> http://students.washington.edu/natetrue/macshift/
> http://www.gorlani.com/publicprj/mac.../macmakeup.asp
> I've also created the problem when I replaced a mini-PCI wireless card
> with another identical replacement card. Windoze plug-n-play detected
> the card change, but for some odd reason retained the old MAC address
> in the registry. It took a while to find and fix that one, but now I
> look for a discrepancy in MAC addresses.
>
> The Intel ProSet utility will show you the actual hardware MAC
> address.
> http://support.intel.com/support/wir.../CS-008167.htm
> If you run, from an MSDOS cmd window:
> ipconfig /all | more
> it will show you what Windoze thinks is the MAC address for your
> Wireless card. You can also use Netstumbler to see what MAC address
> is being used.
>
> If they're all the same, then I don't have a clue what's broken. If
> they're different, you might wanna use one of the utilities to make
> the registry and the hardware MAC addresses the same.
>
>
> --
> Jeff Liebermann (E-Mail Removed)
> 150 Felker St #D http://www.LearnByDestroying.com
> Santa Cruz CA 95060 AE6KS 831-336-2558

Thanks for the help... but it didn't help.

The situation is VERY strange: the MAC Address on the filter is the same as
the one I see when I run getmac.exe or ipconfig /all. It's also the same as
the one I see on the adapter's configuration and the details of my
connection (when I disable the MAC filter).

I did another test: I assigned a fixed IP address to this MAC (I use DHCP,
for the rest). The IP address is assigned correctly, not by the DHCP! (Which
would mean that the router recognized the MAC when the filter was disabled,
but not when the filter is enabled.)

I'm not a network engineer, but it looks like the right MAC is broadcasted
from the card, the MAC filter works properly on the router (since another
machine uses it), but the connection cannot be established when the filter
is on.

I guess I should check how the "handshake" is handled between the adapter
and the router, and if the filters/key exchange are applied in the same
order. Unfortunately, I wouldn't know where to start...

Thanks anyway, your post was very educative for me.

Regards,

Dominique

On Sat, 19 Feb 2005 17:26:55 -0500, "Dominique"
<(E-Mail Removed)> wrote:

>The situation is VERY strange: the MAC Address on the filter is the same as
>the one I see when I run getmac.exe or ipconfig /all. It's also the same as
>the one I see on the adapter's configuration and the details of my
>connection (when I disable the MAC filter).

So much for that theory. I did some googling for "DI-524 mac address
filter" and found some interesting comments which include the exact
symptoms you're seeing.

http://www.amazon.com/gp/product/cus...&s=electronics
See the section starting with "Firmware Disaster". It seems that
v1.05 firmware has a few problems. Several postings suggest going
back to v1.03 firmware. Here's another good clue:

http://www.dslreports.com/forum/rema...524+mac+filter
and yet another:

http://groups-beta.google.com/group/...0?dmode=source

The older 1.03 firmware is still on the Dlink web pile:
http://support.dlink.com/products/vi...uctid=DI%2D524



--
Jeff Liebermann (E-Mail Removed)
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 AE6KS 831-336-2558

"Jeff Liebermann" <(E-Mail Removed)> wrote in message
news(E-Mail Removed)...
> On Sat, 19 Feb 2005 17:26:55 -0500, "Dominique"
> <(E-Mail Removed)> wrote:
>
>>The situation is VERY strange: the MAC Address on the filter is the same
>>as
>>the one I see when I run getmac.exe or ipconfig /all. It's also the same
>>as
>>the one I see on the adapter's configuration and the details of my
>>connection (when I disable the MAC filter).
>
> So much for that theory. I did some googling for "DI-524 mac address
> filter" and found some interesting comments which include the exact
> symptoms you're seeing.
>
> http://www.amazon.com/gp/product/cus...&s=electronics
> See the section starting with "Firmware Disaster". It seems that
> v1.05 firmware has a few problems. Several postings suggest going
> back to v1.03 firmware. Here's another good clue:
>
> http://www.dslreports.com/forum/rema...524+mac+filter
> and yet another:
>
> http://groups-beta.google.com/group/...0?dmode=source
>
> The older 1.03 firmware is still on the Dlink web pile:
> http://support.dlink.com/products/vi...uctid=DI%2D524
>
>
>
> --
> Jeff Liebermann (E-Mail Removed)
> 150 Felker St #D http://www.LearnByDestroying.com
> Santa Cruz CA 95060 AE6KS 831-336-2558

Thanks,

I'll try rolling back... The revision info of 1.05 seems to indicate that
the impact should be minimal in my case.

Dominique