From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tim Churchard <tim.churchard@gmail.com>
Date: Mon, 04 Apr 2005 09:54:32 +0000
Subject: [LARTC] Limiting bandwidth on one port
Message-Id: <42510ED8.1020703@gmail.com>
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Hi Everyone

I'm new to tc.  I'm trying to speed limit access to SSH/SFTP on my
external interface (eth0) without affecting any other traffic on any of
the other interfaces.

I've attached a script with my tc commands in.  Can someone point me in
the right direction?

Thank you for your help in advance.
Tim

- --
If you wish to be happy for one hour, get drunk.
If you wish to be happy for three days, get married.
If you wish to be happy for a month, kill your pig and eat it.
If you with to be happy forever, learn to fish.
        -- Chinese Proverb


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#!/bin/sh

### Basics 

DEV=eth0
IP=192.168.1.4

LINERATE=2mbit
LOWRATE=8kbps

TC=/sbin/tc


### Rules - throttle SSH on ext_int

$TC qdisc del dev $DEV root

$TC qdisc add dev $DEV root handle 1: cbq avpkt 1000 bandwidth $LINERATE
$TC qdisc add dev $DEV parent 1: classid 1:1 cbq rate $LOWRATE allow 1500 prio 5 bounded isolated

$TC filter add dev $DEV parent 1: protocol ip prio 16 u32 match ip sport 22 0xFFFF flowid 1:1

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