No BSF (Band Stop Filter, for those that dont know the term) needed on the Genie. It would stop any network traffic on the coax and defeat the purpose.
You would however need BSF's on any SD receivers (The network traffic interferes with their tuners).
This is 100% incorrect, please check your documentation, i checked it with a sup, and found it documented at solidsignal. If you are running a straight ethernet to the hr34 (and only in this particular case) you DO INDEED need a bsf on the genie.
Cited: http://forums.solidsignal.com/showthread.php/1251-WHITE-PAPER-A-Guide-to-DIRECTV-Networking
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