> Say I want to implement QoS for users like - > 512 kpbs downstream (incoming) and 128 kbps upstream (outgoing), > 1 Mbps downstream (incoming) and 256 kbps upstream (outgoing), etc. > Is it possible to implement the above QoS scheme using HTB,SFQ etc ? > If yes how ? The network diagram is as given below. Yes indeed! All you need is create the appropriate classes on the network-interfaces. As I'm only using HTB and iptables I can give you just a HTB example: > eth1 : internal interface > eth0/ppp0 : outgoing interface Ok, let's say you create the following classes according to your information: eth1: -1:1 512kbps (user1) -1:2 1Mbps (user2) ppp0: -2:1 128kbps (user1) -2:2 256kbps (user2) user1's ip is 192.168.0.1 user2's ip is 192.168.0.2 The iptables rules would be: #marking packets iptables -t mangle -A FORWARD -s 192.168.0.1 -j MARK --set-mark 1 iptables -t mangle -A FORWARD -d 192.168.0.1 -j MARK --set-mark 1 iptables -t mangle -A FORWARD -s 192.168.0.2 -j MARK --set-mark 2 iptables -t mangle -A FORWARD -d 192.168.0.2 -j MARK --set-mark 2 #putting packets in HTB classes iptables -t mangle -A POSTROUTING -o eth1 -m mark --mark 1 -j CLASSIFY --set-class 1:1 iptables -t mangle -A POSTROUTING -o eth0 -m mark --mark 1 -j CLASSIFY --set-class 2:1 iptables -t mangle -A POSTROUTING -o eth1 -m mark --mark 1 -j CLASSIFY --set-class 1:2 iptables -t mangle -A POSTROUTING -o eth0 -m mark --mark 1 -j CLASSIFY --set-class 2:2 As I don't know your setup you can make sure that nothing goes wrong by adding the incoming and outgoing interfaces at the marking part like this: iptables -t mangle -A FORWARD -i eth1 -o ppp0 -s 192.168.0.1 -j MARK --set-mark 1 For putting the packets into HTB classes you can also use tc filter if you're not familar with CLASSIFY. Hope that helps! M. -- COMPUTERBILD 15/03: Premium-e-mail-Dienste im Test -------------------------------------------------- 1. GMX TopMail - Platz 1 und Testsieger! 2. GMX ProMail - Platz 2 und Preis-Qualitätssieger! 3. Arcor - 4. web.de - 5. T-Online - 6. freenet.de - 7. daybyday - 8. e-Post
