On Monday 17 March 2003 22:35, Stephane Ouellette wrote:
> Stef Coene wrote:
> >On Monday 17 March 2003 22:01, Stephane Ouellette wrote:
> >>Folks,
> >>
> >>    after spending a lot of time experimenting with HTB, I found that
> >>filters cannot be attached to HTB  classes...
> >>
> >>The class hierarchy I use is the following (for my upstream internet
> >> link):
> >>
> >>
> >>               PRIO (with priomap that sends everything by default to
> >>class 1:3)
> >>             /   |   \
> >>            /    |    \
> >>           /     |     \
> >>        1:1     1:2     1:3
> >>      PFIFO    PFIFO    HTB qdisc (default to 4:100)
> >
> >The default class MUST be a leaf class.  A leaf class is a class with no
> > child classes.  If no filter is matched, the packet is dequeued in the
> > default class.  This means that no filter is tested so your packets ends
> > in 4:100. The filters attached to 4:100 are never checked.
> >
> >Stef
>
> Stef,
>
>    If I understand correctly, all filters related to the HTB leaf
> classes should be attached to the HTB qdisc.
No, I was only speaking about the default class.  You have a filter that put 
some packets in 4:200.  The rest of the traffic goes to the default class 
4:100.  But the packets are immediatly dequeued in class 4:100 so the filters 
attached to 4:100 are never checked.  You can simulate a default class if you 
add a u32 filter with src 0/0.
The default class is for unclassified packets.

Stef

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