[LARTC] Filter for large packets?

[Simon Stemplinger]

Hi,

i am using the wondershaper script on a DSL-router-firewall combination for several LAN clients. My Problem is that the port based filter rules dont match bulk traffic satisfyingly, because many file sharing programs allow to use custom ports. Usually a few connections that is not recognized as bulk are enough to fill up the 1:20 queue and slow down www and other normal traffic. Can anyone tell me a filter rule that matches Packets greater that a certain number of bytes. I think classifying outgoing packets > 512 or 1024 bytes as bulk should help here. Do you think this is a good idea, or am i missing something?

What would be a good size threshold to separate normal from bulk traffic?

regards,
Simon

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