Greetings George,
: I am using iproute2 to setup fowarding, adding routes like "ip
: route add 192.168.1.3 via 192.168.1.2"
:
: I was wondering where in the kernel I can insert probabilistic
: packet loss only for forwarded packets? So that for instance I
: can drop 5% of all forwarded packets?
:
: I don't need help with the actual code, just need help finding
: where to insert this code :)
I believe you are looking for the netem qdisc [0]. Here's just a
snippet from Stephen Hemminger's wiki page to help you imagine how
you could use netem to introduce probabilistic packet loss.
# tc qdisc add dev eth0 parent 1:3 handle 30: netem \
delay 200ms 10ms distribution normal
Good luck,
-Martin
[0] http://linux-net.osdl.org/index.php/Netem
--
Martin A. Brown --- http://linux-ip.net/ --- martin@xxxxxxxxxxxx
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