similar to: Inaccurate results without natting the traffic.

Hello, I''m using tc to limit the bandwidth of our wireless customers. I have a working script, but I''m not happy with it. I''m trying to write a more sophisticated script, but when I run it, it give me this error: RTNETLINK answers: File exists I have no idea what this error means or how to fix it. Here is a portion of the script (the whole script shapes several

Sub:[LARTC] cbq init for one port on a subnet Hello, We use cbq.init to limit bandwidth. It works great on a per-user basis. Now I''d like to limit traffic from a netblock to the Internet on port 6699. Network is 192.168.0.160 mask 255.255.255.224 eth0 is the gateway eth1 connects the netblock in question Is this the proper syntax; DEVICE=eth0,10Mbit,1Mbit RATE=100Kbit

here''s the output : # tc -s -d class show dev eth0 class cbq 1: root rate 10Mbit cell 8b (bounded,isolated) prio no-transmit/8 weight 10Mbit allot 1514b level 2 ewma 5 avpkt 1000b maxidle 23us Sent 294 bytes 7 pkts (dropped 0, overlimits 0) borrowed 0 overactions 0 avgidle 605 undertime 0 class cbq 1:10 parent 1:1 leaf 10: rate 100Kbit cell 8b prio 1/1 weight 100Kbit allot 1600b

Hi All, I''m using iptables-1.2.7a on RedHat8 kernel 2.4.20. I wanted to limit the file-sharing traffic to the internet. I marked the packets with iptables: iptables -A FORWARD -t mangle -p tcp -s 192.168.1.1/24 -d ! 192.168.1.1/24 --dport 1024:1862 -j MARK --set-mark 1 iptables -A FORWARD -t mangle -p tcp -s 192.168.1.1/24 -d ! 192.168.1.1/24 --dport 1864:65535 -j MARK --set-mark 1

Hi, In my LAN Iam trying to make following setup: - All the traffic generated by 10.0.2.1 should go to 10.0.2.11, If the destination of this traffic is internet than it should be placed on its interface eth1. Outgoing traffic on eth1 should be shaped.For this I am using fw filters and cbq. _______ 10.0.2.1 -------> 10.0.2.11(eth0 )----| A

Dear Community, sorry for the somewhat dumb question. Maybe someone has any pointer to how to setup the RED queue to mark pakets with ECN. In particular what are appropriate parameter settings for limit, min, max, etc. All my trials end up with either "RTNETLINK answers: Invalid argument", although the command line (at least for me) looks fine in regard to what is said on the

Hi folks, I read the fantastic LARTC How-to and after that i tried to limit one host in my LAN for both down-and upload bandwidth usage. I took section 15.9. and added uplink-limiting as I understood it from the previous chapters. Unfortunately it doesn''t work. I ran the script and went to the specified PC, started a download, and watched the rate. The rate was always about 2000 kbit/s,

Hi all, First, let me say I''ve been most impressed with how quickly and professionally people on this list ask and answer questions. Next, let me say that with which I need help is properly configuring strict PQ, and gathering certain stats. Specifically: - I need to create a priority queue with four queues (let''s say they are of high, medium, normal, and low priority) - I

I have a Gentoo Linux (kernel 2.6.11) server. Several months ago, I made a traffic shaping setup for my box (running a 2.4 kernel then) that worked beautifully. It gave high priority to SSH and RealAudio traffic, and put HTTP downloading traffic on a lower prio so they could only use what bandwidth was left. However, I''ve only just realized that tc is no longer accepting the commands I

Hi all, Can you tell me where is the documentation for the new IFB (implemented in kernels > 2.6.16). Thanks in advance! Nikolay

Hi! Do you know somthing about hfsc and bps? There''s no output for speed only for packets. Doesn''t hfsc support such a field? tc -s class show dev eth0 class hfsc 1: root Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) rate 0bit 0pps backlog 0b 0p requeues 0 period 0 level 2 class hfsc 1:11 parent 1:1 sc m1 0bit d 18.0ms m2 1000Kbit ul m1 0bit d 0us m2

I have to match my packets based on MAC address, which I cannot do in the POSTROUTING chain, so I do it in PREROUTING using MARK. Then, I match on the MARK in the POSTROUTING chain to do a CLASSIFY. But this does not seem to work: wireless-r1 bwlimit # iptables -L -v -n -t mangle Chain PREROUTING (policy ACCEPT 3353K packets, 941M bytes) pkts bytes target prot opt in out source

Dear all, I''m having real problems getting tc to do anything useful at all. I''m also under pressure to get this fixed before the students start arriving later this month (I work in a university). In short, I want each IP address to be hard limited to 128kbit down, 64kbit up, never to be allowed more bandwidth than this. It is also important that the latency remains

The docs[1][2] suggest it''s 1024, but tc says something else: # tc qdisc add dev eth0 root tbf rate 1kbps latency 50ms burst 1500 # tc -s qdisc ls dev eth0 qdisc tbf 8009: rate 8000bit burst 1499b lat 48.8ms ^^^^^^^ Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) rate 0bit 0pps backlog 0b 0p requeues 0 If 1k were 1024, then I would have 8192bit above.

Hi to all of you!!! I am a Computer Science student trying to do the pre-grade thesis. I am trying to develop a free software tool to help administrators to control the traffic. Right now this tool is based on tc and iptables. I am having some problems trying to understand tc and tc examples: - Why in almost every list of tc rules based on htb class, there is a "tc qdisc dev ... root ...

Dear List, Sorry for the dublicated email but I couldn''t get any answer. I am trying to limit some IP blocs with tc with following three step. # interface tc qdisc add dev eth0 root handle 1: cbq avpkt 1000 bandwidth 256kbit # class tc class add dev eth0 parent 1: classid 1:1 cbq rate 64kbit \ allot 1500 prio 5 bounded isolated # rules # download tc filter add dev eth0 parent 1:

Hi all, I''ve not been able to find an explanation of the relationship between prio and rate as they apply to the HTB technique. Hopefully someone on here will be able to help me. As I understand things, when prio values are assigned to an HTB setup, classes with a given prio value will only be serviced when there are no packets waiting in classes with a lower prio value. Now, does

How can it be, that class 1:3 in my case borrows, when all sibling classes are isolated ? nessus:~# tc -s -d class show dev eth1 class cbq 1: root rate 100Mbit cell 8b (bounded,isolated) prio no-transmit/8 weight 100Mbit allot 1514b level 2 ewma 5 avpkt 1000b maxidle 1us Sent 484 bytes 7 pkts (dropped 0, overlimits 0) borrowed 0 overactions 0 avgidle 77 undertime 0 class cbq 1:1 parent 1:

Hi folks...!!! I need to generate qdisc statistics to show my 4 class (10, 20, 30, 40), i`ve all working with HTB and so on, but i need to graph this results e.gwith RRDTOOL. I found a script made in perl, that can to graph my 4 class, but i need to know which IP address on my LAN are using the bandwidth too, in other hand i need to classify the traffic by IP to show. This is an out of my