[LARTC] Problems matching by mac address
Alexey Toptygin
alexeyt at freeshell.org
Wed Apr 5 00:15:05 CEST 2006
On Tue, 4 Apr 2006, Adam M. Towarnyckyj wrote:
> I recently read on a prior post as well as the FAQ that
> packets can be limited by mac address using the u32 filter. I attempted
> this and, while all the commands went through with no errors, it is not
> limiting at all. I'm attempting to limit all IP traffic to a specific
> destination mac address (00:12:3f:05:43:7f). Here is a quick rundown of
> the commands I've used:
Not sure that this will help, but
> tc qdisc add dev eth1 parent 1:2 handle 12: htb
> tc class add dev eth1 parent 12: classid 12:10 htb rate 128kbit
no ceil?
> tc filter add dev eth1 protocol ip parent 12: prio 5 u32 match u16
> 0x0800 0xFFFF at -2 match u32 0x3f05437f 0xFFFFFF at -12 match u16
> 0x0012 0xFFFF at -14 flowid 12:10
Shouldn't that be "match u32 0x3f05437f 0xFFFFFFFF at -12" (2 more Fs)
Also, what you sent didn't have any rules to classify from root down to
12: so the above filter won't be consulted...
Alexey
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