[LARTC] Shaping traffic bound for the NAT'ed networks whithout imq

[Andy Furniss]

Flemming Frandsen wrote:
> I'm trying to set up a shaper that can shape the inbound traffic to around
> 40 subnets, that hang on 3 different interfaces of the router.
> 
> As Linux can't do ingress shaping I'm left with having to set up 3
> seperate shapers, one for each internal interface.
> 
> This is not completely optimal as I'll have to limit each of the 3
> interfaces to 1/3 of the total downstream bandwidth of the ADSL, leaving
> users unhappy with performance and if a user happens to be on the same
> segment as a leecher then he gets hit, but not everyone else.
> 
> I've thought about using IMQ, but it's not available in the standard
> kernel, and I'd really hate to have to reboot the router as it's
> inaccessible and any  breakdown would piss off the users.
> 
> I have two questions:
> 1) I compiled IMQ as a module and inserted it, but I couldn't "ifconfig
> imq0 up" or anything else with it, any idea what I might be doing wrong?
> 
> 2) Is there any alternative to using IMQ to get all the inbound traffic
> shaped at once?

Yes (depending on exact setup/requirements) - it's just gone in the 
latest net tree it's called ifb.

http://www.mail-archive.com/netdev%40vger.kernel.org/msg05208.html


AIUI if you have a recent kernel you should be able to build it as a 
stand alone module.

Andy.