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Re: [linux-tr] howto disable source route bridgeing?

Thanks Paul.

I'd certainly like to try out the patch and see if it solves my problem.
It appears that source-routing confuses the 3Com ATM switch at the centre
of the network and it fails to forward packets.  I don't know if this is a
bug in the 3Com Switch software or a miss configuration, I'm niether a
token ring expert or an ATM expert yet.   

The behavior for 2.2 sounds quite sane, if the patch fails or proves
unreliable I'll give it a go.  

Are there any plans to move this functionality in to ifconfig or perhaps
as a option passed to the module? It would IMHO be a better place than a
compile time option.  Of course if this problem is only encountered by
stange token ring and ATM networks it's probably not worth the effort :)

I'll be on site again early next week, if you could send me the patch
before then I'd be most greatful.


On Wed, 27 Jan 1999, Paul Norton wrote:

> I just had a patch that disables source-routing submitted to me a few
> days ago that I'm currently looking over.  If you are interested I
> could forward you that.  Otherwise, there isn't a way to disable
> source-routing in the current driver.  2.2.0 won't use source-routing
> to destinations it receives non-sr frames from, but if it initiates a
> conversation source-routing is used (to be discarded if source-routing 
> is not used by the destination.)
> Lee Shakespeare writes:
>  > Hi Folks.
>  > 
>  > I'm trying to connect a linux box (2.0.35) to a rather large token ring
>  > network and am encountering a few problems.  The network has a number of
>  > 3com token ring hubs, which are joined by a 3com 7000 ATM switch.  I can
>  > see all the machines on the local token ring, but none on the other
>  > rings.  An NT box which sits on the same ring can see the whole network.
>  > 
>  > I've been told by the people in the know, that I need to "disable source
>  > route bridgeing" for the token ring card.  A quick usenet search has
>  > turned up little, source routing hadn't used to work, but does now.  The
>  > source code doesn't make an explicit references to it, and I'm no kernel
>  > hacker.  
>  > 
>  > Does anyone know how I can disable source route bridgeing for the token
>  > ring card in the ibmtr module?  
>  > 
>  > Thanks for you help.
>  > 
>  > Lee.
>  > 
>  > --
>  > lee@mbtuk.demon.co.uk   :   Lee Shakespeare
>  >