LARTC - Mar 2003 - Filtering ACK bits smaller than 64 bytes

Hi there

I want to add a filter for all ACK bits smaller than 64 bytes for a
specific ip destination, but I get RTNETLINK answers: invalid argument.
Any idea what is wrong with the filter below:

tc filter add dev eth1 parent 1:0 prio 1 u32 \
        match ip dst 196.44.35.53 \
        match ip protocol 6 0xff \
        match u8 0x05 0x0f at 0 \
        match u16 0x0000 0xffc0 at 2 \
        match u8 0x10 0xff at 33 \
        flowid 1:20

Thanks,

-- 
Roché Compaan
Upfront Systems                 http://www.upfrontsystems.co.za
_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/

Urghm, found my problem.

tc filter add dev eth1 parent 1:0 prio 1 u32 \

should have been:

tc filter add dev eth1 parent 1:0 protocol ip prio 1 u32 \
                                  ^^^^^^^^^^^
> Hi there
> 
> I want to add a filter for all ACK bits smaller than 64 bytes for a
> specific ip destination, but I get RTNETLINK answers: invalid argument.
> Any idea what is wrong with the filter below:
> 
> tc filter add dev eth1 parent 1:0 prio 1 u32 \
>         match ip dst 196.44.35.53 \
>         match ip protocol 6 0xff \
>         match u8 0x05 0x0f at 0 \
>         match u16 0x0000 0xffc0 at 2 \
>         match u8 0x10 0xff at 33 \
>         flowid 1:20

-- 
Roché Compaan
Upfront Systems                 http://www.upfrontsystems.co.za
_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/