Re: IMQ again WAS(Re: iptables breakage WAS(Re: dummy as IMQ replacement

[Andy Furniss <andy.furniss@xxxxxxxxxxxxx>]

jamal wrote:
> On Mon, 2005-03-28 at 08:39, Andy Furniss wrote:
>
>
> > Hmm - I just tried to recreate another test I did - which was using IMQ 
> > to shape for a single duplex link. I was going to redo it with dummy, 
> > but don't seem to be able to put an egress filter on eth0 - eg. Your 
> > example from the first post in this thread -
> > What you can do with dummy currently with actions
> > --------------------------------------------------
> >
> > Lets say you are policing packets from alias 192.168.200.200/32
> > you dont want those to exceed 100kbps going out.
> >
> > tc filter add dev eth0 parent 1: protocol ip prio 10 u32 \
> > match ip src 192.168.200.200/32 flowid 1:2 \
> > action police rate 100kbit burst 90k drop
> >
> > Gives me -
> >
> > RTNETLINK answers: Invalid argument
> > We have an error talking to the kernel
>
> Dont see why this shouldnt work. You are saying it works with
> non-aliased interface addreses?
No it doesn't work at all.

I noticed default qdisc has handle 0:

#tc -s qdisc ls dev eth0
qdisc pfifo_fast 0: bands 3 priomap  1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1
 Sent 13024 bytes 95 pkt (dropped 0, overlimits 0 requeues 0)
 rate 0bit 0pps backlog 0b 0p requeues 0

but using parent 0: instead of 1: still fails.

Andy.