Re: Filter matching problems

Linux Advanced Routing and Traffic Control

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On Sat, 2012-10-06 at 07:12 -0400, John A. Sullivan III wrote:
> On Sat, 2012-10-06 at 09:19 +0100, Andy Furniss wrote:
> > John A. Sullivan III wrote:
> > > Hello, all.  Can anyone tell me why this filter does not match anything
> > > when I think it should match everything:
> > >
> > > tc filter replace dev bond3 parent ffff: protocol ip prio 1 u32 match u8
> > > 0 0 action mirred egress redirect dev ifb0
> > 
> > Well there's no flowid - but if I do that on eth0 it still works but I 
> > do get a warning - I suppose older tc may be less forgiving.
> > 
> > filter protocol ip pref 1 u32 fh 800::800 order 2048 key ht 800 bkt 0 
> > terminal flowid ???  (rule hit 5 success 5)
> > 
> > I assume ifb0 is up
> > 
> > ip li set up dev ifb0
> > 
> > I've never tried on a bond, so don't know if that's it.
> > 
> Hmm . . .it worked for us on our Debian Squeeze test system but this
> production one is CentOS 5.7 so it could be the age.  However, on an
> ingress qdisc, where would I send the returning packets? Do I send them
> to the regular egress qdisc? Thanks - John
<snip>
Ah, I do see examples with flowid :1.  What is :1? Thanks - John


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