[LARTC] Filtering ACK bits smaller than 64 bytes

[LARTC] Filtering ACK bits smaller than 64 bytes

[=?unknown-8bit?q?Roch=C3=A9?= Compaan]

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
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Re: [LARTC] Filtering ACK bits smaller than 64 bytes

[=?unknown-8bit?q?Roch=C3=A9?= Compaan]

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