[Bridge] bridge wlan-eth

[Bridge] bridge wlan-eth

[Christoph Kaminski]

Hi!

I have some problems with an bridge between wlan0 and eth0 device...

It works and I can from both sides ping the router with the bridge device but 
I cant ping the devices from other net so I cant ping wlan devs from eth net 
and other way around

the wlan card is an atmel usbw11 from linksys and eth is a intel e100 
10/100mbit nic

I have configured the bridge according to the how to and dont see any errors 
in kern.log or somewhere else....

What is wrong?

PS: sorry for my english but I hope you can understand what I mean

Re: [Bridge] bridge wlan-eth

[Michael Renzmann]

Hi.

Christoph Kaminski wrote:
> It works and I can from both sides ping the router with the bridge device but 
> I cant ping the devices from other net so I cant ping wlan devs from eth net 
> and other way around
> 
> the wlan card is an atmel usbw11 from linksys and eth is a intel e100 
> 10/100mbit nic

You'll have two problems:
1. The e100 is said to have a problem with bridging, depending on the 
driver you use.

2. You need to have your wlan device working in a special mode, which is 
not available to the atmel-chipsets afaik. This mode is known under many 
names, such as "Host-AP", "Master-Mode", "AP-Mode" and others. Without 
this mode, you won't be able to bridge between wlan and lan. The only 
way to work around this problem then would be to use proxy arp - afair 
there is a daemon available that cares about the wlan-lan situation in 
context to proxy arp. You should find it when searching freshmeat.net 
with "proxy arp" or thelike.

Bye, Mike

Re: [Bridge] bridge wlan-eth

[Stephen Hemminger]

On Wed, 17 Mar 2004 18:13:58 +0100
Christoph Kaminski <mangel@gmx.de> wrote:

> Hi!
> 
> I have some problems with an bridge between wlan0 and eth0 device...
> 
> It works and I can from both sides ping the router with the bridge device but 
> I cant ping the devices from other net so I cant ping wlan devs from eth net 
> and other way around
> 
> the wlan card is an atmel usbw11 from linksys and eth is a intel e100 
> 10/100mbit nic
> 
> I have configured the bridge according to the how to and dont see any errors 
> in kern.log or somewhere else....
> 
> What is wrong?
> 
> PS: sorry for my english but I hope you can understand what I mean
> _______________________________________________
> Bridge mailing list
> Bridge@lists.osdl.org
> http://lists.osdl.org/mailman/listinfo/bridge



More info in bridge FAQ
	http://bridge.sourceforge.net/faq.html

It doesn't work with my Wireless card!
This is a known problem, and it is not caused by the bridge code. Many wireless cards don't allow spoofing of the source address. It is a firmware restriction with some chipsets. You might find some information in the bridge mailing list archives to help.
-- 
Stephen Hemminger 		mailto:shemminger@osdl.org
Open Source Development Lab	http://developer.osdl.org/shemminger

Re: [Bridge] bridge wlan-eth

[Mark S. Mathews]

The answer to this is in the bridge FAQ at:

http://bridge.sourceforge.net/faq.html

Have Fun!
-M

On Wed, 17 Mar 2004, Christoph Kaminski wrote:

> Hi!
> 
> I have some problems with an bridge between wlan0 and eth0 device...
> 
> It works and I can from both sides ping the router with the bridge device but 
> I cant ping the devices from other net so I cant ping wlan devs from eth net 
> and other way around
> 
> the wlan card is an atmel usbw11 from linksys and eth is a intel e100 
> 10/100mbit nic
> 
> I have configured the bridge according to the how to and dont see any errors 
> in kern.log or somewhere else....
> 
> What is wrong?
> 
> PS: sorry for my english but I hope you can understand what I mean
> _______________________________________________
> Bridge mailing list
> Bridge@lists.osdl.org
> http://lists.osdl.org/mailman/listinfo/bridge
> 


Mark S. Mathews

AbsoluteValue Systems      Web:    http://www.linux-wlan.com
715-D North Drive          e-mail: mark@linux-wlan.com
Melbourne, FL 32934        Phone:  321.259.0737
USA                        Fax:    321.259.0286

Re: [Bridge] bridge wlan-eth

[Chris Shaw]

I know this is off topic but...

check out the Jouni Malinen's HostAP driver homepage at:

http://hostap.epitest.fi

It enables the special "HostAP" functionality of the Harris/Intersil Prism
2/2.5/3 chipset which allows your card to act as a full AP (and also do
wireless -> ethernet bridging.)

Some Atmels work with this driver, YMMV...

    -Chris


----- Original Message -----
From: "Christoph Kaminski" <mangel@gmx.de>
To: <bridge@lists.osdl.org>
Sent: Wednesday, March 17, 2004 9:13 AM
Subject: [Bridge] bridge wlan-eth


> Hi!
>
> I have some problems with an bridge between wlan0 and eth0 device...
>
> It works and I can from both sides ping the router with the bridge device
but
> I cant ping the devices from other net so I cant ping wlan devs from eth
net
> and other way around
>
> the wlan card is an atmel usbw11 from linksys and eth is a intel e100
> 10/100mbit nic
>
> I have configured the bridge according to the how to and dont see any
errors
> in kern.log or somewhere else....
>
> What is wrong?
>
> PS: sorry for my english but I hope you can understand what I mean
> _______________________________________________
> Bridge mailing list
> Bridge@lists.osdl.org
> http://lists.osdl.org/mailman/listinfo/bridge

[Bridge] bridge wlan-eth

[Bob Beers]

Hi list,

I am not subscribed to this list, but I hope someone will
know the solution to my problem ...

I have checked the archives and there was a thread:

<http://lists.osdl.org/pipermail/bridge/2004-March/000224.html>

that did not really get resolved.  I have discovered something
about this situation that I hope someone can shed more light on.

Using hostap driver in AP mode, with a netgear MA311 or
  linksys WMP11, (both PCI), with older firmware

NIC: id=0x8013 v1.0.0
PRI: id=0x15 v1.0.7
STA: id=0x1f v1.3.6

bridge eth-wlan works great, but after "upgrading" to newer
  firmware (to get essid hiding feature),

NIC: id=0x8013 v1.0.0
PRI: id=0x0015 v1.1.1
STA: id=0x001f v1.7.4

bridge no longer works, even though there is no apparent (to me)
indication of error.

Is there info somewhere that tells about what was "fixed" in
different firmware versions for prism chips, or better is there
some workaround in the bridge code that I don't yet know about
to overcome this issue?

I guess I will test all the firmware versions I can get onto
  my cards and see where it broke, but if anyone already knows
  where the problem really comes from, please let us all know.

Thanks,

-Bob
-- 
Bob Beers
MIEEE 2415966

[Bridge] Re: bridge wlan-eth

[Bob Beers]

Bob Beers wrote:
   apparently a bunch of nonsense ...

Sorry for the noise on the list, but let me close this thread,
  just incase someone hits it in the archives during a search.

The hardware I was testing on had (unknown to me) changed, for the worse.
I can't say exactly what in the hardware was causing the problem, but
I'm not using it any more.

The newer firmware does support bridging between eth and wlan just fine.

-- 
Bob Beers
MIEEE 2415966