[LARTC] connecting IMQ to different interfaces

[LARTC] connecting IMQ to different interfaces

[Craig J Howard]

Ok, I'm pretty new to this stuff, so I hope this question doesn't appear stupid:

How do I connect an IMQ to different network interfaces?

eg...say I want to control OUTGOING traffic normally on 3 different interfaces:

tc qdisc add dev "eth0" root handle 1: htb default 1
tc class add dev "eth0" parent 1: classid 1:1 htb rate 200kbit ceil 350kbit prio 2

tc qdisc add dev "eth1" root handle 1: htb default 1
tc class add dev "eth1" parent 1: classid 1:1 htb rate 200kbit ceil 350kbit prio 2

tc qdisc add dev "eth2" root handle 1: htb default 1
tc class add dev "eth2" parent 1: classid 1:1 htb rate 200kbit ceil 350kbit prio 2


now I want to control INCOMING traffic to the three different interfaces with IMQ:

tc qdisc add dev "imq0" root handle 1: htb default 1
tc class add dev "imq0" parent 1: classid 1:1 htb rate 2000kbit prio 3

iptables -t mangle -A PREROUTING -i eth0 -j IMQ --todev 0
ip link set "imq0" up

tc qdisc add dev "imq1" root handle 1: htb default 1
tc class add dev "imq1" parent 1: classid 1:1 htb rate 2000kbit prio 3

iptables -t mangle -A PREROUTING -i eth1 -j IMQ --todev 1
ip link set "imq1" up

Now how do I apply it to the third interface? I've run out of imq's!
Thanks guys
craig
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Re: [LARTC] connecting IMQ to different interfaces

[Stef Coene]

On Friday 28 March 2003 07:17, Craig J Howard wrote:
> Ok, I'm pretty new to this stuff, so I hope this question doesn't appear
> stupid:
>
> How do I connect an IMQ to different network interfaces?
>
> eg...say I want to control OUTGOING traffic normally on 3 different
> interfaces:
>
> tc qdisc add dev "eth0" root handle 1: htb default 1
> tc class add dev "eth0" parent 1: classid 1:1 htb rate 200kbit ceil 350kbit
> prio 2
>
> tc qdisc add dev "eth1" root handle 1: htb default 1
> tc class add dev "eth1" parent 1: classid 1:1 htb rate 200kbit ceil 350kbit
> prio 2
>
> tc qdisc add dev "eth2" root handle 1: htb default 1
> tc class add dev "eth2" parent 1: classid 1:1 htb rate 200kbit ceil 350kbit
> prio 2
>
>
> now I want to control INCOMING traffic to the three different interfaces
> with IMQ:
>
> tc qdisc add dev "imq0" root handle 1: htb default 1
> tc class add dev "imq0" parent 1: classid 1:1 htb rate 2000kbit prio 3
>
> iptables -t mangle -A PREROUTING -i eth0 -j IMQ --todev 0
> ip link set "imq0" up
>
> tc qdisc add dev "imq1" root handle 1: htb default 1
> tc class add dev "imq1" parent 1: classid 1:1 htb rate 2000kbit prio 3
>
> iptables -t mangle -A PREROUTING -i eth1 -j IMQ --todev 1
> ip link set "imq1" up
>
> Now how do I apply it to the third interface? I've run out of imq's!

RTFM:

If you compile the imq as module and you do a modprobe for it, there is an 
option that you can specify so you can say how many imq devices you want.  
modprobe imq numdevs=3


Stef
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