[linux-dvb] Re: dvbnet MAC filter mask (NETSYSTEM patch)

[Johannes Stezenbach <js@convergence.de>]

Lefteris Xanthoudakis wrote:
> 
> Trying to setup my system with new kernel/drivers and Netsystem have had 
> performance trouble. According to
> http://www.linuxtv.org/mailinglists/linux-dvb/2001/02-2001/msg00068.html
> the network interface should be applied a MAC filter to
> ff:ff:ff:ff:f0:00 instead of the default ff:ff:ff:ff:ff:ff applied with
> apps/dvbnet or dvbtune.
> Any ideas how I can patch this? Also anybody got Netsystem working at
> descent speeds (250kbits) with new drivers 1.0.1?

Filters are now set in the driver, see dvb_net.c. But the mail you
quote says "I don't know why". And so don't I.

You could try to run DVB/apps/test/test_sections as follows:

./test_sections PID 0x3e "0 0 0 0xM6 0xM5 0 0 0 0xM4 0xM3 0xM2 0xM1" \
                         "0 0 0 0xff 0xff 0 0 0 0xff 0xff 0xff 0xff"

and

./test_sections PID 0x3e "0 0 0 0xM6 0xM5 0 0 0 0xM4 0xM3 0xM2 0xM1" \
                         "0 0 0 0    0xf0 0 0 0 0xff 0xff 0xff 0xff"

(I hope I counted the bytes correctly, check against dvb_net.c and
ETSI EN 301 192, section "7 Multiprotocol encapsulation", downloadable
from www.etsi.org).

If the first one works but not dvb_net, dvb_net is broken. If the second one
works, Netsystem is broken.


Johannes


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