[LARTC] Little question about imq device

[LARTC] Little question about imq device

[Marcin Sura]

Witam

  I've found many examples where packets are redirected to IMQ device
  in PREROUTING chain for ingress traffic shaping purposes.

  But is there any sense in redirecting packets to IMQ in FORWARD
  chain also for ingress traffic shaping purposes?

  

-- 
Pozdrawiam
 Marcin                         mailto:slacklist@op.pl

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Re: [LARTC] Little question about imq device

[Daniel Cabezas]

On Sun, 15 Aug 2004 19:03:58 +0200, Marcin Sura wrote
> Witam
> 
>   I've found many examples where packets are redirected to IMQ device
>   in PREROUTING chain for ingress traffic shaping purposes.
> 
>   But is there any sense in redirecting packets to IMQ in FORWARD
>   chain also for ingress traffic shaping purposes?

Yes, I think, imagine something like this. Imagine you are the gateway of a
whole class C , with ip 192.168.0.1  then :


tc qdisc add dev imq0 handle 1: root htb default 1
tc class add dev imq0 parent 1: classid 1:1 htb rate 64kbit
tc qdisc add dev imq0 parent 1:1 handle 2 sfq

iptables -t mangle -A FORWARD -i eth0 -d 192.168.0.X -j IMQ

would prevent traffic coming from an outside network attached to the gw going
to the 192.168.0.x host.


Daniel  . -------        daniel_at_seriousworks.net
             /Cabezas  SeriousWorks Solutions, SCP
______/                 Barcelona, Spain
                             www:    http://www.seriousworks.net

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