[LARTC] tc filter add ... fw returns RTNETLINK answers: Invalid argument

[Muthukumar S]

On 1/10/06, Flemming Frandsen <ff at nrvissing.net> wrote:
> When I run this:
> tc filter add dev eth0 parent 1: protocol ip prio 1 handle 1 fw
>
> I get:
> RTNETLINK answers: Invalid argument

You are missing the flowid. For example
tc filter add dec eth0 parent 1: protocol ip prio 1 handle 1 fw flowid 1:42


>
> The traditional interpretation of that gnarly error message is that
> cls_fw is missing, but lsmod | grep cls_fw gets me:
> cls_fw                  2336   4  (autoclean)
>
> I can't remove it because it's in use, but all 4 statements that use it
> failed, so I'm really stumped.
>
>
> This is what happens in begining of the traffic shaper script:
>
> + tc qdisc del dev eth0 root
> + tc qdisc add dev eth0 root handle 1: htb default 0x42
> + tc class add dev eth0 parent 1: classid 1:1 htb rate 700kbit burst 6k
> + tc class add dev eth0 parent 1:1 classid 1:42 htb rate 600kbit burst
> 15k prio 0
> + tc qdisc add dev eth0 parent 1:42 handle 42: sfq perturb 20
> + tc filter add dev eth0 parent 1: protocol ip prio 1 handle 1 fw
> RTNETLINK answers: Invalid argument
> + iptables -t mangle -N to-dsl
>
> Any clues?
>
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