On 3/22/07, Andy Furniss <lists@xxxxxxxxxxxxxxxxxxxxxxx> wrote:
Salatiel Filho wrote:
> Where can i read about IFB ? I try to google but i can not find too
> much info. maybe i am looking for the wrong words. Maybe this is the
> solution, cause i would like to put both local traffic and forwarded
> traffic in the same htb queue.
It's quite new, it was designed as a replacement for imq, but doesn't
quite do everything it can.
Here's howto send all ip incoming on eth0 to ifb - it's called
intermediate functional block in kernel config.
IP=/sbin/ip
TC=/sbin/tc
$TC qdisc del dev ifb0 root &>/dev/null
$TC qdisc del dev eth0 ingress &>/dev/null
$IP link set ifb0 down &>/dev/null
if [ "$1" = "stop" ]
then
echo "stopping"
exit
fi
modprobe ifb
$TC qdisc add dev eth0 ingress
$IP link set ifb0 up
tc filter add dev eth0 parent ffff: \
protocol ip prio 10 u32 match u32 0 0 \
flowid 1:0 \
action mirred egress redirect dev ifb0
Then just add tc rules on ifb like any other device.
>
>>
>> If you really need imq you will need to check first imq option in kernel
>> config is set to A.
>
> If i put after NAT in prerouting , how can i shape upload by IP ?
I use iptables to mark unnatted addresses then shape on the real
interface using the marks with a filter to catch the rest (ie traffic
from shaping box to wan)
If you use IMQ then it's postrouting for egress - so you can use the
second option to choose whether it hooks before/after NAT.
ie. AB would hook after prerouting (de)nat but before postrouting nat.
Andy.
Hi Andy , thanks again , but i am not understanding very well how to
do it [still newbie in this]. Let`s try to change to some real code
here. This is part of my setup to shape download:
eth0 = EXTIF
eth1 = LOCALIF
# SHAPE DOWNLOAD to LOCALNET NOT COMING FROM THE ROUTER ITSELF [samba
for example]
iptables -t mangle -s ! 192.168.254.254 -A POSTROUTING -o eth1 -j IMQ --todev 1
tc qdisc add dev imq1 root handle 1: htb default 3 r2q 1 //
DOWNLOAD SHAPER ROOT
tc class add dev imq1 parent 1: classid 1:1 htb rate 2048kbit quantum
1500 //KNOWN TRAFFIC GOES HERE
tc class add dev imq1 parent 1: classid 1:3 htb rate 8kbit quantum
1500 // DEFAULT CLASS VERYYYYY SLOWWWWWWW
# First class 1Mb shaped
tc class add dev imq1 parent 1:1 classid 1:2 htb rate 1024kbit quantum 1500
# Known ips
tc class add dev imq1 parent 1:2 classid 1:101 htb rate 100kbit ceil
900kbit prio 0 quantum 1500
tc qdisc add dev imq1 parent 1:101 handle 101: sfq perturb 5
tc filter add dev imq1 parent 1: protocol ip handle 101 fw flowid 1:101
iptables -t mangle -I POSTROUTING -o eth1 -d 192.168.254.101 -j MARK
--set-mark 101
.... and a few others like this above ...
Well , that work great , but how can i shape downloads in the own router.
wget http://blahblahblah ....as a leaf of 1:2 like i did for
the others ? using iptables mark ...
Some code here would help :)
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--
[]'s
Salatiel
"O maior prazer do inteligente é bancar o idiota
diante de um idiota que banca o inteligente".
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