> Hi Arno, > > > > > Hello Jan, > > > > no filter rules are installed. With Telnet from the realtime box to my > host > > I can see the packets and replies with tcpdump, but the replies don't > come > > back to the telnet client. > > If I stop the realtime networking stuff and load the nonrealtime driver, > > everything > > works fine. > > If I use an unoccupied port I also get no replies. > > > > Ok, as you are able to transmit packets over rtproxy and tcpdump shows > incoming data on that device, the only explanation is that, for some > unknown reason, the Linux kernel drops all incoming rtproxy packets at > the TCP/IP layer. Could you try to compare a packet received over normal > eth0 and rtproxy? Do they differ in some way so that the kernel accounts > the rtproxy packet as invalid? > > Jan >
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. Thx for your help, Arno -- +++ NEU bei GMX und erstmalig in Deutschland: T�V-gepr�fter Virenschutz +++ 100% Virenerkennung nach Wildlist. Infos: http://www.gmx.net/virenschutz ------------------------------------------------------- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click _______________________________________________ RTnet-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/rtnet-users
