getting random and average to accept decimals?

getting random and average to accept decimals?

[George P Nychis]

Hi,

I need a very high precision loss model, and right now it seems as though --average can only accept integer numbers

I would for example like to introduce .01% packet loss, .1% packet loss, 1% packet loss, 1.5% packet loss ... except it seemas though out of that set, i would only be able to do 1% packet loss

lanthanum-ini ~ # iptables -A FORWARD -p all -m random --average .25 -j DROP
iptables v1.3.5: bad --average `.25', must be between 1 and 99
Try `iptables -h' or 'iptables --help' for more information.

is there any way i can get higher precision?

Thanks!
George

Re: getting random and average to accept decimals?

[George Nychis]

Daniel made a really helpful suggestion on #iptables to solve my problem:

iptables -N CENTAPKT; iptables -A INPUT -m random --average 1 -j 
CENTAPKT; iptables -A CENTAPKT -m random --average 1 -j DROP

yey, 0.01% packet loss :)

George P Nychis wrote:
> Hi,
> 
> I need a very high precision loss model, and right now it seems as though --average can only accept integer numbers
> 
> I would for example like to introduce .01% packet loss, .1% packet loss, 1% packet loss, 1.5% packet loss ... except it seemas though out of that set, i would only be able to do 1% packet loss
> 
> lanthanum-ini ~ # iptables -A FORWARD -p all -m random --average .25 -j DROP
> iptables v1.3.5: bad --average `.25', must be between 1 and 99
> Try `iptables -h' or 'iptables --help' for more information.
> 
> is there any way i can get higher precision?
> 
> Thanks!
> George
> 
> 
>