Ubuntu Networking :: Shaping Banwidth According To Destination Mac Address?
Jan 20, 2010
I'm trying to shape bandwidth using HTB method and filtering classes with destination mac address. for this I've found two codes but none of them seem to filter bandwidth as i want (test with iperf) can some one explain me the problem with theses codes
Code:
tc qdisc add dev eth0 root handle 1: htb
tc class add dev eth0 parent 1: classid 1:1 htb rate 1000kbit ceil 1000kbit
tc filter add dev eth0 parent 1: protocol ip prio 3 u32 match u16 0x0800 0xFFFF at -2 match u16 0xM4M5 0xFFFF at -4 match u32 0xM0M1M2M3 0xFFFFFFFF at -8
code2:
[Code]...
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Jan 21, 2010
I'm trying to shape bandwidth using HTB method and filtering classes with destination mac address. for this I've found two codes but none of them seem to filter bandwidth as i want (test with iperf)
code 1 Code: tc qdisc add dev eth0 root handle 1: htb
tc class add dev eth0 parent 1: classid 1:1 htb rate 1000kbit ceil 1000kbit
tc filter add dev eth0 parent 1: protocol ip prio 3 u32 match u16 0x0800 0xFFFF at -2 match u16 0xM4M5 0xFFFF
code....
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Oct 18, 2010
We are using squid deplay pools successfully in our lan and it is working very fine but now i want each computer bandwidth to be shaped for each port means that whenever the user make ftp connection with ftp software or whenever the user access outlook express for email each port like smtp,ftp,remote desktop connection will be shaped or otherwords each pc will get fixed bandwidth.
Our Broaband having 1Mbps connection and we have 16 user who access the internet so i want the 1Mbps will distribute in each user. Our Six Users of internet is our directors and managers of the company so i want to give them max speed and 10 users will get low speed.
Six Special users Ip address: 192.168.1.3 to 192.168.1.9. Other Regular users Ip Address: 192.168.1.10 to 192.168.1.20.
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Sep 24, 2010
I want to explicitly commit bandwidth to only 3 VOIP connections, where a connection is defined as a source IP address, destination IP address, and a traffic class. I would like the traffic controller to put the first 3 VOIP connections into 3 different queues that would have equal priorities that are higher than Best Effort. If a 4th VOIP connection were to start, its packets would be put into the Best Effort queue. When one of the VOIP connections ends, I would like the incoming packets of a VOIP connection that is in the Best Effort queue (assuming there is one) to now start going into the free VOIP queue. Is it possible to do this? Can traffic control keep track of connections being created and deleted like that? If so, how is it done? I would like to avoid having to be constantly updating my filters whenever a connection starts/ends. In actuality, I would want to do this for several different classes.
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Jan 6, 2010
I maintain a network in a hostel for university students. As we often have a relatively slow connection I tried to find a solution. A friend of mine used traffic shaping / QoS here before I got the job. But we seem to have not made the best rules for the shaping as the connection was way faster without the shaper than with. As he himself installed the system alone I have nearly no knowledge how to put up another, better system.
About the hostel:
- 90 people in this house
- 10 mbit SDSL dedicated line, full flatrate
- very mixed type of internet traffic (P2P, HTTP, EMails, Rapidshare, Torrents, Skype, ...)
I would like to install a linux router with traffic shaping, QoS and maybe even SQUID. Googling for the words brought so much older stuff, but nothing newer.
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Apr 12, 2009
I am running Fedora 9 and KDE 4.2.1. I want to set up some traffic shaping on my machine to prevent my torrent client from hogging my entire bandwidth. I.e., I want KTorrent to download and upload to the best of its ability, but still be able to browse the net freely in spite of the torrents. I have done some reading about traffic shaping in Linux. There is lots of material about it, but most of it (such as the lartc.org "howto") is very complex and comprehensive and looks extremely intimidating. Furthermore, most of it addresses situations where you want to distribute traffic between multiple computers in a network. I just want to manage processes on a single machine. I am hoping for a piece of software that lets me assign each a "priority" to each application, or something like that. Like cFosSpeed for Windows.
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Dec 27, 2010
We have a need to shape outgoing traffic EXCEPT to certain IP/subnets (sounds opposite to the title, but not really :P), using iptables if possible. We've had decent luck doing it with various things, but one of the big problems is the decrease in download speed (which DOES NOT need to be shaped at all) due to upload shaping. ie, we want the shaping not to apply to TCP/UDP overhead. Semi related but probably not important is the ability to shape virtualised systems as well (ie the guests), but as the guest traffic goes through the host any traffic shaping done on/to the host should affect the guests as well.
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Nov 27, 2010
I want to implement bandwidth shaping policy in a virtual environment. So i have 2mbps link, which i want to distribute it among Email,http(s),ssh,... and some other traffic. I want to do this in a virtual environment, for testing purpose. I want to run this script on a virtualbox virtual machine, which has ubuntu installed on it. and then use that as the router.
(a) is there any software that could simulate email,http,... traffic so that i could test it?
(b) my second question is (though not related to networking) how do i set a (virtual) machine as a router? or is it even possible?
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Mar 23, 2010
I am playing around with transparent proxies, The current way I am doing things is the program makes a request to a computer on port 80, I use
Code:
iptables -t nat -A OUTPUT -p tcp --destination-port 80 -j REDIRECT --to-port 1234 to redirect to my proxy that I am playing with. the proxy will send out a request to port 81 (as all outbound port 80 are being fed back in to the proxy) so I want to do something like
Code:
iptables -t nat -A OUTPUT -p tcp --destination-port 81 -j DNAT --to-destination xxxx:80 The problem lies with the xxxx part. How do I change the destination port without changing changing the destination ip? Or am I doing this setup completely wrong,
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May 20, 2011
When I ping the router 165.213.100.1, i get the following proper response.
[root@ ~]# ping 165.213.100.1
PING 165.213.100.1 (165.213.100.1) 56(84) bytes of data.
64 bytes from 165.213.100.1: icmp_seq=1 ttl=62 time=0.860 ms
[code]...
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Sep 16, 2010
Using iptables is there a way to switch the destination IP to become the new source IP and forward that connection.iptables store the src and dst IP in a variable for a particular connection?
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Feb 24, 2010
Currently my OS is Ubuntu 9.04 Jaunty Jackalope Desktop OS and my web server is Apache2. I have a public address 60.x.y.z and my pc local address is 10.x.y.z. I have a web app in my Apache2 which currently run in localhost(10.x.y.z).
I would like to enable the web app so that it could be browse from outside. I know there maybe some port forwarding process and some commands involved in order to do that. But I have no idea on the steps to do that.
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Dec 16, 2010
Version 10.04 LTS. Installed desktop version and network worked but I needed a static IP address and the install configures for a DHCP configured address. I tried changing to static address using the System->Preferences->Network Connections application but was unable to get the system to come up with the network up.
So I manually modified the /etc/network/interfaces and the /etc/resolv.conf files. I restart the system but when I do an ifconfig, I don't see a configured IP address on eth0 (only the loopback address). If I run /sbin/ifup eth0 everything then works fine and ifconfig shows the correct address bound to eth0.
My files are as follows:
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Mar 12, 2011
I'm running Ubuntu 10.10 and I'm having problems trying to assign it a static IP address. No matter what I put in the Preferences->Networking area (identifying the interface as Manual)... it still will query DHCP for an address if I run the dhclient command. I'm using to using ubuntu server where I just set the IP in the interfaces config file.
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Jan 11, 2010
I am doing a university course and am struggling to find a method of sending 1 message down route A and then the next message to the same destination via route B, alternating between the two with each new message sent.I am going to use a Linux computer with two Ethernet cards connected to two different networks via a routers and then to the destination host via a switch.
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Feb 21, 2011
On my system, I have built my own tunneling protocol, where I relay packets over a non-standardized but verified medium. What I do is capture the packets using iptables and NFQUEUE, relay them over my medium, and at the other end I reinject them using raw sockets. The packet going into the tunnel is exactly the same as the one coming out, verified. The problem is that this doesn't work for ICMP Ping (Echo Request) if the destination of the ping is the same as the tunnel endpoint. If the destination is not the same as the tunnel endpoint, the ping packet is rerouted and arrives as it should at the receiver, and the ping reply comes back to the sender. Does anyone know whats going on? Isn't it possible to send raw icmp to yourself? If not, anyone have an idea what I should do instead?
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Jul 30, 2010
I have 5 1955 blades in an enclosure for an custom application cluster.All were running Centos 4.4 no problem.We wanted to start upgrading them cleanly to 5.5 so two of them got fresh installs of 5.5.The installs went well enough, no glaring errors.However they can only ping each other! The network settings are fine, no firewall or selinux. I'd run the info script but I can neither download it to them nor paste it in via kvm.Standard static entries, virtually identical to their 4.4 brethren. They ping each other so network drivers are fine, no built in switch configuration changes. It has to be some kind of network configuration issue that i'm just not seeing.
Edit* When i try and ping anything else, including the other blades, I get Destination Host Unreachable.
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Jun 8, 2010
i have a problem with my internet connection in ubuntu 8.04 server edition. if i ping to: [URL]... i get: Destination Host Unreachable but when i ping to my gateway or other pc's in my network no problems occur.
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Mar 6, 2010
I have a problem with the Fedora 12 Network Manager - OpenVPN configuration. If I use the same configuration and manually start openvpn (as client) I get connected to the OpenVPN server and I can ping the network that I am accessing. With Network Manager - I get connected but when I try to ping is giving me "Destination host unreachable". The routing table looks similar except that when connecting with network manager is giving me on more route in table
Destination Gateway Genmask Flags Metric Ref Use Iface
xxx.xxx.xxx.xxx 192.168.0.1 255.255.255.255 UGH 0 0 0 wlan0
192.168.0.0 0.0.0.0 255.255.255.0 U 2 0 0 wlan0
192.168.171.0 0.0.0.0 255.255.255.0 U 0 0 0 tap0
0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 wlan0
Where xxx.xxx.xxx.xxx is the IP of the OpenVPN server. When connecting "manually" I this routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.0.0 0.0.0.0 255.255.255.0 U 2 0 0 wlan0
192.168.171.0 0.0.0.0 255.255.255.0 U 0 0 0 tap0
0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 wlan0
What I do wrong in Network Manager? If I try to delete the route with xxx.xxx.xxx.xxx is disconnecting the vpn connection.
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Jan 13, 2010
I am an 'experienced perpetual newbie' using Ubuntu 9.04. I know a little about quite a few things but nothing past intermediate knowledge so:I am trying to set up a simple LAN between 'rhino' (192.168.1.102) and 'polly-laptop' (192.168.1.101). My router address is 192.168.1.1
From polly-laptop:
sudo mount rhino:/home /media/rhinohome
polly-laptop can access rhino:/home fine.
[code]....
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May 31, 2010
i don't understand what I am doing wrong. I started a CentOS Vm through Vmware server 1.05 When I run the machine I preform Dhclient and my machine gets an IP internet works fine.
When I change my IP to static everything stops working I cant ping anything anymore I cant ping my server I cant ping my gateway I cant ping google My config is done through Webmin but I know it can also be done through /etc/sysconfig/network-scripts/ifcfg-eth0 My hosts file has this
127.0.0.1 localhost srvspam
my /etc/sysconfig/network-scripts/ifcfg-eth0 file has this
BOOTPROTO=none
NAME=""
MACADDR=""
HWADDR=00:0C:29:59:91:DE
[Code]...
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May 12, 2011
I am working on implementing a protocol on NS2.34 .I really need help to solve this problem . Actually , I don't now whether the problem is generated by the tcl code or the c++ code when I run the simulation, I get this result :
Code:
num_nodes is set 64
INITIALIZE THE LIST xListHead
34
45
channel.cc:sendUp - Calc highestAntennaZ_ and distCST_
highestAntennaZ_ = 1.5, distCST_ = 550.0
SORTING LISTS ...DONE!
code....
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Apr 24, 2010
Consider the following program:
Code:
#include <stdio.h>
#include <stdint.h>
[code]...
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Sep 19, 2010
I have a question regarding Traffic Shaping in Linux, Suppose I have a server on the internet (web, email or ftp) and I want to shape outgoing traffic per IP, say 256k for each destination IP. I've seen examples on the internet on how to shape traffic per IP by adding a queue for each IP, and some examples by using u32 hash if I have e.g. a /24 network, but if I have a server and I want to shape the traffic by destination IP, and of course... since it is a server on the internet I can't manually define any IPs of subnets. An example using the tc command?
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Jan 17, 2010
I've been searching the last days for a tool to limit the bandwidth per application. I found the perfect tool for it: trickle, but it doesn't work (I tested it with firefox and chrome but they didn't obey the limit and I think the problem is that they don't use dynamically linked libs and trickle doesn't work for statically linked apps). I found some other tools but they don't limit per application (only per user or network interface).Does someone knows any other tools like trickle (easy too use and able to limit bandwidth per application) but for all applications?
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May 7, 2010
I am running my own Postfix mail server. Some time ago I noticed that most email was rejected because of the server's dynamic IP address. So I got a fixed IP address. However then I noticed that some mails got rejected due to failing the reverse DNS check. So my ISP told me to get a range of IP addresses and they could then create a PTR record for one of those addresses. That is now running but it turns out that the IP address used for the PTR record is a ... dynamic IP address. So Spamhaus PBL rejects my emails again.
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Feb 17, 2009
I've got a problem with 'seeing' other machines on my Network. I have two laptops both with F10 on them however I can't ping either of them. They can connect fine to the internet and ping the router, they are both on the same subnet with Firewalls disabled on both machines. When I try to ping it says: "Destination Host Unreachable". I've tried firing up Wireshark to see if that will give me any clue but even that doesn't show any packets whatsoever from the other machine across the Network. It's like they are completely invisible to each other.
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Oct 6, 2010
In my job I use some ethernet embedded devices. They take an ip address from dhcp server or auto ip. I only know mac address.How can I obtain ip from mac address? In other words I need a rarp packet generator.
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Jun 7, 2009
I have a few external IP's assigned to me by my ISP. I have IPcop as my router/firewall. I am wondering how to bind 1 of my external ip's to my internal ip address. So I do not have to port forward, etc. For Example, 77.77.77.77 to 192.168.1.123 and on the server it see's the external IP address.
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Oct 28, 2010
I dont know for what reason, since 2 days, I started having this message whenever I try to start httpd.I commented "Listen 443", restarted httpd started correctly. I needed to comment "listen 443" in order to be able to start httpdWhat is strange is when I do
Code:
telnet mylinux 443
it responds
[code]...
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