HTB and imq was used to control traffic. |----| eth0|------|eth2 |-----| | B |------|___A__|------| D | |____| |eth1 |_____| __|__ | C | |____| A:three NIC was bind to br0:172.16.6.235/24 B:172.16.6.3/24 D:172.16.6.4/24 C:172.16.6.2/24 htb was used to control traffic on A stuctrul is like that(default is 1:20): |----1:100 |------1:10| 1:1| |____1:110 | |------1:20 #AC="tc filter add dev eth1 protocol ip parent 1:0 prio 1" #$AC u32 match u32 0xac100600 0xffffff00 at 16 flowid 1:10 #$AC u32 match u32 0xac100603 0xffffffff at 16 flowid 1:100 I copy a file from C to B, class 1:100 go into effect. but when I copy a file from C to D class 1:10 did not go into effect class 1:20 take effect. please tell me if filter can not be appended to parent class, it can only be appended to leaf(end of class). my htb version is htb3.6-020525 _________________________________________________________ Do You Yahoo!? 银行巨头聚会中原 大浪淘‘金’谁将笑傲 http://sweepstakes.yahoo.com/bank_surveywave2/