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Valton Hashani

2005-Jan-12 12:27 UTC

hashing filters

Hi all,
I am a newbie and I have not played a lot with tc utility. I have red maybe
everything that has to do with massive filtering (maybe not everything). If you
can help me on this I would appriciate that very much. I use tc utility with 
iproute2-ss040831.
I want to limit bandwidth for  the  192.168.0.0/16 subnet using this script.


tc qdisc del dev eth0 root
tc qdisc add dev eth0 root handle 1: htb
tc class add dev eth0 parent 1: classid 1:2 htb  rate 100Mbit ceil 100MBit 
tc filter add dev eth0 parent 1:2 handle 2: protocol ip u32 divisor 256
tc filter add dev eth0 protocol ip parent 1: u32 match ip dst 192.168.0.0/16
hashkey mask 0x000000ff at 12 link 2:
tc class add dev eth0 parent 1:2 classid 1:3 htb  rate 128Kbit ceil 128Kbit

j=0;

while [ $j -le 254 ]

do
       i=0;

        while [ $i -le 254 ]
        do
                hexi=`echo "obase=16; $i" | bc`
                tc filter add dev eth0 protocol ip parent 1:2 u32 ht 2:$hexi:
match ip dst 192.168.$j.$i flowid 1:3
                i=$((i+1))
      done

j=$((j+1))
done
  
somewhere at 192.168.8.7/32 it appears on the screen this message 

RTNETLINK answers: File exists
We have an error talking to the kernel

Can you tell me please what am I doing wrong.

Thank you in advance 
Valton

Tomasz Paszkowski

2005-Jan-12 13:11 UTC

head link

Re: hashing filters

On Wed, Jan 12, 2005 at 01:27:18PM +0100, Valton Hashani
wrote:> Hi all,
> I am a newbie and I have not played a lot with tc utility. I have red maybe
everything that has to do with massive filtering (maybe not everything). If you
can help me on this I would appriciate that very much. I use tc utility with 
iproute2-ss040831.
> I want to limit bandwidth for  the  192.168.0.0/16 subnet using this
script.
> 
> 
> tc qdisc del dev eth0 root
> tc qdisc add dev eth0 root handle 1: htb
> tc class add dev eth0 parent 1: classid 1:2 htb  rate 100Mbit ceil 100MBit 
> tc filter add dev eth0 parent 1:2 handle 2: protocol ip u32 divisor 256
> tc filter add dev eth0 protocol ip parent 1: u32 match ip dst
192.168.0.0/16 hashkey mask 0x000000ff at 12 link 2:change to:
tc filter add dev eth0 protocol ip parent 1: u32 match ip dst 192.168.0.0/24
hashkey mask 0x000000ff at 16 link 2:> tc class add dev eth0 parent 1:2 classid 1:3 htb  rate 128Kbit ceil 128Kbit
> 
> j=0;
> 
> while [ $j -le 254 ]
> 
> do
>        i=0;
> 
>         while [ $i -le 254 ]
>         do
>                 hexi=`echo "obase=16; $i" | bc`add hiere:
		echo tc filter add dev eth0 protocol ip parent 1:2 u32 ht 2:$hexi: match ip
dst 192.168.$j.$i flowid 1:3

and show us results.>                 tc filter add dev eth0 protocol ip parent 1:2 u32 ht
2:$hexi: match ip dst 192.168.$j.$i flowid 1:3
>                 i=$((i+1))
>       done
> 
> j=$((j+1))
> done
>   
> somewhere at 192.168.8.7/32 it appears on the screen this message 
> 
> RTNETLINK answers: File exists
> We have an error talking to the kernel
> 
> Can you tell me please what am I doing wrong.
-- 
Tomasz Paszkowski

Valton Hashani

2005-Jan-12 18:08 UTC

head link

Re: hashing filters

Hi,

with a Tomasz suggestions I tried with the setup below but it appears at the
same place, the same error.

RTNETLINK answers: File exists
We have an error talking to the kernel

Is there any other way?

Regards,
Valton

-------------------------
tc qdisc del dev eth0 root
tc qdisc add dev eth0 root handle 1: htb
tc class add dev eth0 parent 1: classid 1:2 htb  rate 100Mbit ceil 100MBit
tc filter add dev eth0 parent 1:2 handle 2: protocol ip u32 divisor 256
#tc filter add dev eth0 protocol ip parent 1: u32 match ip dst
192.168.0.0/16 hashkey mask 0x000000ff at 12 link 2:
tc filter add dev eth0 protocol ip parent 1: u32 match ip dst 192.168.0.0/24
hashkey mask 0x000000ff at 16 link 2:
tc class add dev eth0 parent 1:2 classid 1:3 htb  rate 128Kbit ceil 128Kbit

j=0;

while [ $j -le 254 ]

do
         i=0;

              while [ $i -le 254 ]
         do
         hexi=`echo "obase=16; $i" | bc`
         echo tc filter add dev eth0 protocol ip parent 1:2 u32 ht 2:$hexi:
match ip dst 192.168.$j.$i flowid 1:3
         tc filter add dev eth0 protocol ip parent 1:2 u32 ht 2:$hexi: match
ip dst 192.168.$j.$i flowid 1:3
        i=$((i+1))
         done

j=$((j+1))
done

----- Original Message ----- 
From: "Tomasz Paszkowski" <tomasz.paszkowski@e-wro.pl>
To: "Valton Hashani" <valton@ipko.net>
Cc: <lartc@mailman.ds9a.nl>
Sent: Wednesday, January 12, 2005 2:11 PM
Subject: Re: [LARTC] hashing filters

On Wed, Jan 12, 2005 at 01:27:18PM +0100, Valton Hashani
wrote:> Hi all,
> I am a newbie and I have not played a lot with tc utility. I have redmaybe everything that has to do with massive filtering (maybe not
everything). If you can help me on this I would appriciate that very much. I
use tc utility with  iproute2-ss040831.> I want to limit bandwidth for  the  192.168.0.0/16 subnet using this
script.>
>
> tc qdisc del dev eth0 root
> tc qdisc add dev eth0 root handle 1: htb
> tc class add dev eth0 parent 1: classid 1:2 htb  rate 100Mbit ceil 100MBit
> tc filter add dev eth0 parent 1:2 handle 2: protocol ip u32 divisor 256
> tc filter add dev eth0 protocol ip parent 1: u32 match ip dst192.168.0.0/16 hashkey mask 0x000000ff at 12 link 2:
change to:
tc filter add dev eth0 protocol ip parent 1: u32 match ip dst 192.168.0.0/24
hashkey mask 0x000000ff at 16 link 2:> tc class add dev eth0 parent 1:2 classid 1:3 htb  rate 128Kbit ceil
128Kbit>
> j=0;
>
> while [ $j -le 254 ]
>
> do
>        i=0;
>
>         while [ $i -le 254 ]
>         do
>                 hexi=`echo "obase=16; $i" | bc`add hiere:
  echo tc filter add dev eth0 protocol ip parent 1:2 u32 ht 2:$hexi: match
ip dst 192.168.$j.$i flowid 1:3

and show us results.>                 tc filter add dev eth0 protocol ip parent 1:2 u32 ht
2:$hexi: match ip dst 192.168.$j.$i flowid 1:3>                 i=$((i+1))
>       done
>
> j=$((j+1))
> done
>
> somewhere at 192.168.8.7/32 it appears on the screen this message
>
> RTNETLINK answers: File exists
> We have an error talking to the kernel
>
> Can you tell me please what am I doing wrong.
-- 
Tomasz Paszkowski

_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/

Tomasz Paszkowski

2005-Jan-13 09:06 UTC

head link

Re: hashing filters

On Wed, Jan 12, 2005 at 07:08:03PM +0100, Valton Hashani wrote:

change te script to:
i=0;
while [ $i -le 254 ]
do
	hexi=`echo "obase=16; $i" | bc`
	tc filter add dev eth0 protocol ip parent 1:2 u32 ht 2:$hexi: match ip dst
192.168.$j.$i flowid 1:3
	i=$((i+1))
done

connected with modifications from previous mail it should work.

-- 
Tomasz Paszkowski
Administrator
Miejskie Sieci Informatyczne e-wro
http://www.e-wro.pl

Tomasz Paszkowski

2005-Jan-14 10:21 UTC

head link

Re: hashing filters

On Wed, Jan 12, 2005 at 07:08:03PM +0100, Valton Hashani
wrote:> j=0;
> 
> while [ $j -le 254 ]
> 
> do
>          i=0;
> 
>               while [ $i -le 254 ]
>          do
>          hexi=`echo "obase=16; $i" | bc`
>          echo tc filter add dev eth0 protocol ip parent 1:2 u32 ht 2:$hexi:
> match ip dst 192.168.$j.$i flowid 1:3
>          tc filter add dev eth0 protocol ip parent 1:2 u32 ht $j:$hexi
match
> ip dst 192.168.$j.$i flowid 1:3
>         i=$((i+1))
>          done
> 
> j=$((j+1))
> done

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