Archived from groups: alt.internet.wireless (
More info?)
On Tue, 23 Nov 2004 23:31:53 GMT, Ed <fox@ca.inter.net> wrote:
>I stand to be corrected, but it is my understanding that you would need
>TWO DWL-2100 in that they only act in bridge mode if wirelessly talking
>to another DWL-2100. m But a single DWL-2100 with a DI-624
>will not allow multiple MAC addresses.
Let me try to explain what's happening and why.
The DI-624 is strictly a wireless access point conglomerated with a
router in one box. It has no client modes and does not have the
necessary protocols to play transparent bridge. Two DI-624 boxes
cannot talk to each other.
Think of transparent bridging as a form of Ad-Hoc (peer to peer)
networking. Access points are strictly for infrastructure topology
and do not do Ad-Hoc.
You can build a transparent bridge out of a pair of DWL-2100 wireless
bridges. In order to play bridge, these boxes must have a protocol
that distributes the MAC address to bridge port number table between
the two ends. Most access points, wireless routers, and client radios
lack this protocol. The bridging protocol is generally proprietary
making transparent bridges with mixed hardware problematic. The cheap
transparent bridges can bridge 32 MAC addresses maximum. The better
boxes can do 256 or more. Proxim (Orinico) will do 2048.
The DWL-2100 also has a client mode. This allows it to connect to an
access point (such as a DI-624) and bridge exactly one MAC address.
This isn't as horrible or useless as it sounds because you can place a
router at one end of the link, and use it to deal with multiple
computers. The wireless link would not be transparent (appear as one
big LAN), but with routeing, most of the common protocols and features
can be connected. This is roughly the way many WISP (wireless ISP) do
it. I also posted a similar derrangement in this group yesterday.
>I share the frustration that T Bob must feel but it seems difficult to
>get the answers to the specific questions.
There's not enough profit in these product to pay for an applications
development and customer engineering assistance department. Support
generally is limited to questions involving how to get the hardware
running. Whether the boxes will do what you want is normally the job
of pre-sales support or engineering, which is almost non-existent.
Personally, I would be happier with a more technical data sheet that
itemizes features, peformance, and limitations, instead of the baby
talk and buzzwords found in most data sheets.
>When I e-mailed D-Link
>support, they tended to change my questions to ones which they did have
>an answer for, but ignored the grist of the question.
Sure. They have a menu of boiler plate answers and a key word search.
You could do as well using Google.
>I do recommend http://www.dslreports.com/forum/ for a forumn dedicated
>to D-link products.
Agreed.
--
# Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
# 831.336.2558 voice
http://www.LearnByDestroying.com
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