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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