[LARTC] Re: drop silently locally generated packets

["Aleksandar Kostadinov" <avalon@friendofpooh.com>]

Hi. I want to drop silently locally generated packets on a specific interface. I tried 2 approaches:

tc qdisc del dev eth0 root
tc qdisc add dev eth0 root handle 1: htb
tc filter add dev eth0 parent 1: proto ip u32 match ip dst 
10.10.10.1 flowid 1:1 police conform-exceed drop/drop

tc qdisc del dev eth0 root
tc qdisc add dev eth0 root handle 1: prio bands 2 priomap 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
tc qdisc add dev eth0 parent 1:2 handle 3:0 netem drop 100
tc filter add dev eth0 parent 1: proto ip u32 match ip dst 10.10.10.1 flowid 1:2

Both work (drop the packets to 
10.10.10.1 and pass any others) but when I run "ping 
10.10.10.1" I get after some time continuously "ping: sendmsg: No buffer space available".
Any idea why is this happening? As well how could I drop packets without application being able to detect it?

Thanks much,
Alexander
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