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What is multicast filtering?

By SNIL
Apr 20, 2005
  1. The reason I asked is because I had to disable it in my router to finally get rid of all the lag in World of Warcraft. What does it do and should I have it enabled? I have the SPI firewall still up and my MTU set manually to 1500 on my cable setup.
     
  2. REB_ElMagnifico

    REB_ElMagnifico TS Rookie

    I am not sure what disable multicast filtering would do on that particular router, however...
    Multicasting is a form of broadcasting which, in a home network, basically means that useless information was being sent across your network. Disabling that option probably acted like a weed killer in a garden...now the flowers can breath.
     
  3. REB_ElMagnifico

    REB_ElMagnifico TS Rookie

    Well...after pondering a bit after answering your question, I began to question myself, so I did some research...
    From this website: http://support.3com.com/infodeli/tools/switches/ss3/management/ug/mlticast.htm
    I interpret that multicast filtering does the opposite of what I said. So disabling the filter should actually decrease performance (according to the article). But if disabling the option solved the problem, then...awesome.
     
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