orinoco_cs 802.2 encapsulation/decaprulation problem

[David Gibson]

On Thu, Sep 13, 2001 at 02:27:57PM -0700, Bijan Tuysserkani wrote:
> Go into orinoco.c and change the field in the 
> snap encapsulation header  from 00 00 f8 to all 0s. 

Indeed that should fix it, but with recent versions of the driver it
isn't necessary.  Instead load the orinoco.o module with the
"use_alternate_encaps=1" parameter.  That will have the same effect.

> > Folks:
> > 
> > Laptop running RedHat 7.1 upgraded kernel to Linux
> > 2.4.9, compiled
> > orinoco_cs as module.
> > The WLAN card is ORiNOCO silver.
> > 
> > From this laptop (installed with ORiNOCO silver),
> > ping another PC on the
> > same sub-network
> > 
> > 	98 bytes ICMP echo (ping) request message sent from
> > laptop 
> > 	The destination PC received the packet, and this
> > packet becomes
> > 106 bytes. 
> > 	There are 8 bytes automatically added into the
> > packet. 
> > 	Before IP header, it adds: aa aa 03 00 00 f8
> > 	At the end of the packet, it adds: 41 43.
> > 
> > The extra bytes are 802.2 SNAP ecapsulation bytes. 
> > 
> > The destination PC IP stack does not understand the
> > unknown 0xaaaa
> > protocol type. ping was failed.
> > 
> > If insert wired Ethernet card, the smae laptop and
> > Linux OS works fine
> > and ping was successful
> > If installed with Win20000, the smae laptop and same
> > silver-card works
> > fine and ping was successful.
> > 
> > Looks like this is the problem with orinoco_cs and
> > silver card.
> > 
> > Any body knows how to solve this problem?
> > 
> > Thanks.
> > 
> > Defu Zhang
> > Compaq Telecom
> > 1255 W. 15th Street, Suite 8000
> > Plano, TX 75075
> > Tel: 972-516-6033
> > 
> > 
> > 
> > 
> 
> 
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-- 
David Gibson			| For every complex problem there is a
david at gibson.dropbear.id.au	| solution which is simple, neat and
				| wrong.  -- H.L. Mencken
http://www.ozlabs.org/people/dgibson