[linux-dvb] problem with multicast satellite network

[Matt Jarvis <matt@rolec.ltd.uk>]

Hi

I'm doing some testing trying to receive multicast network packets from 
EUTELSAT W1. I'm using linuxtv-dvb-1.1.1 with kernel 2.4.25, and a 
Hauppauge DVB-S budget card. The drivers work fine, and I can setup the 
network interface using dvbtune. I get lock, and all looks fine with the 
connection :

Getting frontend event
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI 
FE_HAS_SYNC
Event:  Frequency: 11472728
        SymbolRate: 33300000
        FEC_inner:  2

Bit error rate: 65280
Signal strength: 40963
SNR: 55197
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI 
FE_HAS_SYNC

I can see the satellite and scan it for services, which all appears to 
work correctly. So then I setup the interface, giving it IP address and 
MAC address.

Then I run tcpdump on the interface, and see multicast packets for about 
ten seconds, then they stop. If I run dvbtune again they start again, 
then stop again, and so on.

Am I doing something wrong here ?


Best Wishes

Matt