Ik have a 3Com 3CRWE737 96B-E1 networkcard (PCMCIA in a PCI adapter,
indeed). I don't know if this card supports Host mode. As according to you,
the card in hostmode doesn't talk to the accesspoint, maybe I should fall
back to a routed solution and get my pocket PC to use WINS.

Thanks,

Perjan

----- Original Message -----
From: "Andrew Jackson" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Tuesday, March 12, 2002 3:04 PM
Subject: Re: [Bridge] Bridging IEEE 802.11b to wired ethernet - possible?


> On Sat, Mar 09, 2002 at 07:54:00PM +0100, [EMAIL PROTECTED] spake
> thus:
> > Hi,
> >
> > I am doing a little home project in which I need to bridge between a
> > wired LAN and a wireless LAN. I read some articles describing that
> > bridging in Linux will not work with a wireless LAN interface. Is this
> > true?  If this is not true, can anyone explain to me why?
> >
>
> AFAIK it is necessary for the PCI Wireless card (usually just a PCMCIA one
> in a PCMCIA PCI adapter) to be able to behave as an access point ie "Host"
> Mode. This is because you need the hardware to do the bridging of wireless
> packets to ethernet (as far as I could tell - someone correct me if I'm
> wrong) - the linux bridging then is bridging two "wired" equivalent
> ethernets which it knows how to do
>
> I have this setup at home:
>
> Cable Modem --- eth0 : Firewall/Router : eth1 -- Wired Network
> |--br0--|                     |
> |      eth2-------------------|
>       wlan0
> |
> Wireless Network
>
> I'm using wireless cards with the Prism2 chipset and the driver of that
> name which supports putting the card into host mode.
>
>
> > ADSL Modem ----|                                             |-- Solaris
> >                |                                             |
> > Livingroom PC -|-- AccessPoint ===wireless=== Linux bridge --|-- NT
Server
> >                |                |          |                 |
> >                |                |          |                 |
> >         Living room        PocketPC      Laptop            Closet
> >
>
> Your problem will be that by design two units that act as access points
will
> not talk to one another. Your wireless things will happily switch between
> the two, but Solaris and NT Server won't have access to Livingroom PC and
> ADSL Modem.
>
> The only way to get this to work (AFAICS) is to use subnetting and
standard routing
> with the Linux wireless card as another client as you have noted. Setting
> up a dhcp relay isn't hard - the required software comes with the ISC
DHCPD
> package. I shall have to leave it to someone else to comment on the
Windows
> Networking side of things as I know little about it.
>
> HTH (at least a little)
>
> Andrew
> _______________________________________________
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> [EMAIL PROTECTED]
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