Re: Deleting a tc filter rule

["Marco Aurelio" <marco.casaroli@xxxxxxxxx>]

On 6/27/07, Martija, Ricardo V <rmartija@xxxxxxxxxxxxx> wrote:
> Hi,
>
>
>
> I am very new to tc.  I added a filter using the following command:
>
>
>
>    tc filter add dev eth0 V parent 20:0 protocol ip prio 1 handle ::128 u32
> match ip tos 0x44 0xfc flowid 20:1

tc filter add dev eth0 V parent 20:0 protocol ip pref 1234 prio 1
handle ::128 u32 match ip tos 0x44 0xfc flowid 20:1

> To check if the filter rule was indeed added, I run
>
>
>
>    tc filter show dev eth0 parent 20:
>
>
>
> This gave me the following output:
>
>
>
>    filter protocol ip pref 1 u32
>
>    filter protocol ip pref 1 u32 fh 800: ht divisor 1
>
>    filter protocol ip pref 1 u32 fh 800::128 order 296 key ht 800 bkt 0
> flowid 20:1
>
>      match 00440000/00fc0000 at 0
>
>
>
> I tried deleting the filter rule that I added using:
>
>
>
>    tc filter del dev eth0 pref 1 protocol ip handle 800::160

tc filter del dev eth0 pref 1234

> This gave me the following message:
>
>
>
>    Must specify filter type when using "handle"
>
>
>
> I modified the delete command, as follows:
>
>
>
>    tc filter del dev eth0 pref 1 protocol ip handle 800::160 u32
>
>
>
> This gave the following error message:
>
>
>
>    RTNETLINK answers: Invalid argument
>
>
>
> I am pretty much stumped. Can anyone tell me how I can delete a tc filter
> rule?
>
>
>
> Thanks,
>
>
>
> Rick
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--
Marco Casaroli
SapucaiNet Telecom
+55 35 34712377 ext 5
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