Re: [RTnet-users] Re: [BUG] severe IP routing issue

[Jan K. <ki...@rt...>]

Arno Geissel schrieb:
> Hi Jan,
> 
> this was a missunderstanding, I had tcpdump run on my nonrt host.
> On the rtbox the flashdisk is to small to hold a static linked tcpdump.
> 
> Bu I went a bit deeper into the stuff and found that 'len' in the call
> skb_put(skb, len) is 20 more than the according call in the nonrt driver,
> and I found 20 additional bytes at skb->data according to the nonrt
> stuff. 
> Change IP_OVERHEAD from 34 to 14 in rtnetproxy.c solved the problem.
> Now the tcp stuff is working fine in my rt environment.
> 

Confirmed, you discovered a bug in rtnetproxy which was introduced with 
the restructuring in 0.5.5 (it's always nice to have our online cross 
reference :)). It's now fixed in the CVS.

Jan