On 8/30/05, zhang yuanyi <[EMAIL PROTECTED]> wrote: > Hello, everyone! > > The "range support" may be puzzled, but I don't know how to express my > problem exactly because of my poor english. > > Just take an example, I may need all udp packets received on eth0 > which source port is greater than 53 going into flow 10:1, and I only > wanna to type one tc command like this(In fact, I communicated with > kernel directly): > > tc filter add dev eth0 parent ffff: protocol ip prio 20 \ > u32 match udp sport gt 53 0xffff \ > match ip protocol 17 0xff\ > flowid 10:1 > > But I found I can't, because u32 classifier doesn't support matching > multi-value in one key.So I need to add (65535-53) keys to a u32 > filter to implement this. > > I intend to solve this problem by modifying u32 filter to match > multi-value in one key, but I am worrying the preformance. > > Can someone give me some suggestions? > How is this a kernel problem? "tc" is a userspace app. I think you'd be better off talking to Alexey Kuznetsov (added to Cc), who wrote tc, about this.
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