Simple case here!

Linux Advanced Routing and Traffic Control

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Hi All,

I want to setup a machine to connect to internet at a limited rate of 64 kbps.
That machine is connected to a switch. so my LAN and Internet both comes from the same eth0.
How can I limit only the internet access from this machine to 64kbps and still using 100mbps for LAN


I am trying to implement this Please guide me If i am wrong.
I mark all the packets going out to LAN.
Then I can setup a root qdisc to classify packets based on that mark. If match then I can setup a class to accept those setup a fifo for those packets. but if the packets are not for the LAN then i can pass them to other class which is tbf shaping at rate 64kbps.


Am i right on these lines.
This is the setup

+------------+   eth0        +-----------+   internet
| machine   |---------------|   Switch  |-------------
+------------+                  +-----------+

trying to get some thing like this

                        root qdisc  (CBQ or something)
                           /     \
                         /         \
                       /             \
                     /                 \
               class              class
Internal LAN Pcakets        Any other unclassified Packets
                 |                      |
                 |                      |
              FIFO             TBF (rate 64kbps)

Please Help me out with marking the packets and to classify them.
Just started off with Traffic Shaping.  gigles...... : )

It is alos possible to alternatively to mark internet traffic as it would be less in comparison to LAN and thus processor friendly.

Amit Vyas





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