[LARTC] Limiting interface/ips traffic via qos

[LARTC] Limiting interface/ips traffic via qos

[Juan Pablo Feria]

Hi, i want to build a firewall which restricts the traffic on ETH1 to 64Kb.,
i tried to use traffic shaper but if i try to apply the iptables rules to
the shaper0 device there are no communication between interfaces =(, so im
trying to make it via QOS and use the BOUNDES statement to restrict the
maximum traffic,  here are my script:


# Attaching the Qdisc to the eth0 device.  The maximum available bandwidth
is 10Mbit.

tc qdisc add dev eth0 root handle 1: cbq bandwidth 10Mbit cell 8 avpkt 1000
mpu 64

# Adding the root class to the queuing discipline. The root has 10 Mbit
completely.

tc class add dev eth0 parent 1:0 classid 1:1 cbq bandwidth 10Mbit rate
10Mbit allot 1514 cell 8 weight 1Mbit prio 8 maxburst 20 avpkt 1000

# Traffic to testbed11. The priority is 3 and the allocation is 64 Kbit.

tc class add dev eth0 parent 1:1 classid 1:2 cbq bandwidth 10Mbit rate
64Kbit allot 1514 cell 8 weight 100Kbit prio 3 maxburst 20 avpkt 1000 split
1:0 bounded

# Traffic to testbed13. The priority is 7 and the allocation is 10176 Kbit.

tc class add dev eth0 parent 1:1 classid 1:3 cbq bandwidth 10Mbit rate
10176Kbit allot 1514 cell 8 weight 800Kbit prio 7 maxburst 20 avpkt 1000
split 1:0 bounded

# Installing the route classifier on the root of the tree.

tc filter add dev eth0 parent 1:0 protocol ip prio 100 route

# Assigning the route and the rules for testbed11

ip route add 192.168.0.11 via 192.168.0.1 flow 1:2

NOTE: on this command i get:

root@Ner0N:/home/user#ip route add 192.168.0.11 via 192.168.0.1 flow 1:2
Error: either "to" is duplicate, or "flow" is a garbage


QUESTION 1

Is possible restrict to 64 K a link using a Queuing discipline?

Thanks in advance




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                   Ing. Juan Pablo Feria Gomez
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                     TERRA NETWORKS SONORA

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