From: "Marco Aurelio" <marco.casaroli@xxxxxxxxx>
> If you use IFB or IMQ you can shape the outgoing WAN traffic before NAT
>
I am not sure if I understand this reply or the reply seems to me,
is not replying to my original question.
I am asking how to collect statistics about LAN users with respect
to their WAN usage, with LAN IP as the breakdown.
I am not asking how to do traffic shaping. And may I know how
does IMQ help that ?
Actually with more thought given to the problem, I think I am
quite inclined to using iptables ULOG. But ULOG solution
has a few things need mentioning :-
1. Might be very heavy on system loading. Hope people can
clarify if it is a real concern. And anyone has experience using
ULOG 2.x ? Will 2.x be more friendly to system loading
compared to 1.x ?
2. Logging goes into either file or database. It's to be a offline
monitoring mechanism. Is there a way to use ULOG for online
monitoring ?
3. Next, each ULOG is only specifying one side of the traffic. eg :-
iptables -A FORWARD -i eth0 -o eth1 -j ULOG .....
I will need another iptables rule to specify the returning traffic, eg
:-
iptables -A FORWARD -i eth1 -o eth0 -j ULOG .....
Combining two independent logs as one connection will still be a
challenge.
Hope to see more suggestions and discussion.
Thank you.
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