root@OpenWrt:~# cat /bin/testverscript 
#!/bin/ash

DEV="eth0"
IP="192.168.0.30"

tc qdisc add dev $DEV root handle 1: cbq avpkt 1000 bandwidth 100mbit
tc class add dev $DEV parent 1: classid 1:1 cbq rate 64kbit allot 1500 prio 5 bounded isolated
tc filter add dev $DEV parent 1: protocol ip prio 16 u32 match ip src $IP flowid 1:1
tc filter add dev $DEV parent 1: protocol ip prio 16 u32 match ip dst $IP flowid 1:1