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1
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2answers
29 views

Percentual dynamic bandwidth control with tc

Does anyone know if tc (iproute2) can be used to percentually divide the currently available bandwidth? We're on a GPRS connection on which the available bandwidth changes frequently. What I want to ...
2
votes
1answer
2k views

Ingress filtering in Linux traffic control: Redirect traffic to IFB device

I have an openwrt router and I want to shape incoming traffic in order to classify all the traffic addressed to a certain IP address in my home network as low priority. For that purpose I want to ...
2
votes
1answer
562 views

Linux tc Traffic Shaping for IPv6

I have traffic shaping with tc and htb in place and everything works fine for IPv4. Now I want to limit the bandwidth for incoming IPv6 ssh/sftp traffic to some reasonable amount, so it doesn't ...
0
votes
0answers
24 views

linux tc qdisc pie (aqm) configuration with limited bandwidth

I would like to configure AQM PIE by using tc-qdisc, but at the same time I would like to limit the bandwidth to 1Mb/s. I have used similar configuration with fq_codel, i.e. I have limited the ...
1
vote
1answer
203 views

How can I do traffic shaping in Linux by IP for both way communication?

Well, I've already gone through How can I do traffic shaping in Linux by IP? on serverfault & what I'm trying to achieve is pretty much same. Internet--------Linux Router----Switch-----Clients ...
2
votes
2answers
248 views

Automatic TCP connection slowering (shaping)

I'd like to automatically shape bandwidth-hungry TCP connections corresponding to the already transmitted data. A summary would be : "The first Mbit is transferred at full bandwidth, then it ...
2
votes
1answer
2k views

VLAN based rate limiting using tc

I have been trying to perform VLAN based rate limiting on an academic project I am working on. The project uses Openflow (with Beacon controller) and the network is emulated using Mininet. The network ...
0
votes
1answer
97 views

How to set 1Mb speed per host in pfsense

Currently we are using pfsense latest version and I want to assign download speed upto 1Mbps per host and also setup squid proxy and working on bridgh mode in pfsense box.
0
votes
1answer
81 views

RTNETLINK answers: File exists when using netem with tc

So I simply get this error when I enter this command in my master VM: sudo tc qdisc add dev eth0 root netem delay 97ms RTNETLINK answers: File exists Any idea how that could be fixed? I am ...
0
votes
1answer
311 views

Is there a way to limit bandwidth per ip using HTB + a CIDR range in Linux?

I can create rules to limit a entire subnet or to limit individual ip addresses with tc and htb. I am looking to use CIDR ranges to keep things somewhat elegant. The machines in question are all ...
1
vote
1answer
53 views

QoS Traffic Shaping based on packet loss and latency for VPN

I am currently having the following situation: I am using a VPN (OpenVPN) over a rather unstable internet connection. This means the maximum bandwidth varies between 100kbs and 1mbit. Whenever the ...
0
votes
1answer
40 views

Dynamic bandwidth limitation with pfSense

Currently we have a squid proxy to access internet. A single download can saturate the lines and in this circumstance a second user experiences extremely poor performance trying to surf the web. I ...
0
votes
1answer
47 views

cisco asa 5512-x policing

I have a single 100mb leased line that will be shared by three unrelated companies. We are looking to buy a cisco ASA 5512-X and I need to use policing to ensure that each company receives 1/3 of ...
0
votes
0answers
14 views

traffic shaping using ifb redirect

I would like to use ifb to perform some shaping for multiple virtual interfaces. However, I am not sure how to tell the ifb interface to egress to a dedicated egress interface Right now vnet0 -> ...
0
votes
1answer
338 views

traffic shaping on OSX 10.10 with pfctl and dnctl

I am trying to do traffic shaping (throttling) on Mac OS X 10.10 via pfctl and dnctl. I have implemented a simple test server and client with netcat (nc) and a synthetic random payload file to verify ...
0
votes
1answer
73 views

Limit input on a given port with tc filter and u32 match

I'm trying to rate-limit all incoming traffic on ports 8128-8191. I've read everything I found, checked everything ten times, it still doesn't work. The commands: tc qdisc del dev eth0 root tc ...
0
votes
2answers
1k views

Squid packet injection / replace

I have a server which will act as a proxy, using squid. My goal is to have something replace outgoing data. I tried ettercap, no luck whatsoever. The idea is, whatever-will-replace-data needs to run ...
8
votes
3answers
2k views

Limiting interface bandwidth with tc under Linux

I have a linux router which has a 10GBe interface on the outside and bonded Gigabit ethernet interfaces on the inside. We have currently budget for 2GBit/s. If we exceed that rate by more than 5% ...
0
votes
0answers
45 views

tc add delay by specific port

Am trying to simulate WAN latency between an application server and an Oracle database server. The database server itself runs several instances, one of which is my applications 'local' instance, ...
0
votes
0answers
20 views

esxi traffic Shaping

There's a good description of how traffic shaping works on a esxi Standard Switch here. In short, there are three settings: average bandwith peak bandwith burst size Traffic can be sent with peak ...
0
votes
0answers
36 views

TC - delete exact filter

Im't trying to automate traffic shaping on some system n one interface, using next script. This script adds classes and filters by one per class, width command like: tc filter add dev eth0 parent 1: ...
1
vote
0answers
121 views

Linux traffic shaping for multiple clients with tc [closed]

I need to divide bandwidth between several clients connected through IPSEC. I found this article: ...
0
votes
0answers
90 views

TC fails to shape traffic with DRR

I try to control outgoing traffic from my server. I want to have several classes with different QoS parameters. For the scheduling I'm using DRR. The following commands (should) create a Tree of ...
0
votes
0answers
196 views

Traffic Control in OpenStack Neutron with either TC or OpenVSwitch

As far as I know, QoS in OpenStack Neutron is still under development and not production-ready (I could be wrong on this point though, shout at me if so...), but we are required to implement traffic ...
4
votes
2answers
5k views

maximum number of connections Squid

I have a Squid proxy server that controls all internet traffic for my network. I need a way to stop users from downloading big files (say >50MB) in my network. I banned some famous ports (e.g. ...
3
votes
2answers
6k views

Traffic shaping HTTP downloads with l7-filter

Given the following: A small, remote office has only a few users and a 1.5 Mbps DSL connection via a ZyXEL 660R. Users experience unacceptable latency and packet loss when even one large file is ...
4
votes
1answer
140 views

What are the characteristics of the Meraki SpeedBurst traffic shaping algorithm?

I've been using Cisco Meraki wireless access points to provide guest and BYOD access at some of my customer sites. One of the interesting bandwidth management features is the SpeedBurst traffic ...
2
votes
1answer
575 views

Limiting bandwidth on Ubuntu Linux

I am in the situation where I have to simulate a P2P-environment (for my masters thesis in computer science). To do that I am using Docker with Ubuntu to create a bunch of virtual machines that is ...
1
vote
0answers
48 views

How to throttle bandwidth for ipalias in Linux

I want to slow the connection between some nodes to a virtual node inside one machine. (different nodes use different ip with ip-alias or with different ports) In Linux, is it possible to slow the ...
3
votes
1answer
867 views

Limiting bandwidth with hashlimit (e.g. kb/s — not connections!) doesn't work, though the man page says it should

According to the iptables-extensions man page hashlimit can do bandwidth limiting: "flows exceeding 512kbyte/s" => --hashlimit-mode srcip,dstip,srcport,dstport --hashlimit-above 512kb/s ...
0
votes
0answers
49 views

filtering in traffic shaping

I am using a traffic shaping by HTB and IPhashing filter in an organization with 10500 users. In my project i want to control bandwidth per IP so I created for each IP an individual class. HTB ...
2
votes
1answer
1k views

bridge traffic limiting via tc

I have a Linux machine running as a bridge simulating various network conditions. I use tc for this. Introducing delays or packet loss is quite simple but I got into trouble trying to configure ...
2
votes
1answer
239 views

Use traffic shaping with tc on debian jessie to limit only one virtuall IP

My server has multiple IPs on which only one is mapper to the inbound physical interface eth0. Other IPs are handled in a virtual manner via iptables/DNAT. I want to limit the traffic to one of my ...
1
vote
0answers
42 views

IP hashing filter in traffic shaping

I am using a traffic shaping by IP hashing filter. I have Five networks /24 : 192.168.1.0/24, 192.168.2.0/24 .. 192.168.5.0/24 so i create a table with 5 cells and each cells has 256 cells. this is ...
0
votes
2answers
2k views

Limit bandwidth in cisco router with policy-map doesn't work

I have a problem with my scenario in limiting bandwidth of ubuntu PC in GNS3 with class-map and policy-map. this is my topology in GNS3: ...
0
votes
2answers
233 views

Why does a traceroute from one location to another and vice versa show different paths?

I have recently be plagued by low download speeds from my server and was curious, so I ran a traceroute. (I have removed the end IP and the start IP). I achieve a download speed of 220Kb/s when I am ...
0
votes
1answer
100 views

Traffic shaping for upload/download speed simulation [duplicate]

I'm building a network emulator to help realize different speeds. Basically, this system would shape a given user's network metrics (such as upload speed/download speeds/packet loss/jitter etc) based ...
0
votes
0answers
182 views

Using net_cls with tc to shape ingress

I've successfully set up egress shaping using tc and net_cls, but am having a lot of trouble doing the same for ingress. I've tried using the basic tc ingress qdisc with a filter as well as using IFB ...
2
votes
1answer
231 views

Is there an equivalent of LinuxIMQs in BSD?

Is there an equivalent of LinuxIMQs in BSD ? From linuximq.net: The imq device has two common usage cases: Ingress shaping: With linux only egress shaping is possible (except for the ingress ...
8
votes
5answers
890 views

Blocking BitTorrent

How can one block, or severely slow down, BitTorrent and similar peer-to-peer (P2P) services on one's small office network? In searching Server Fault I wasn't able to find a question that served as a ...
0
votes
0answers
80 views

Incorrect real bandwidth in traffic shaping

I am trying to create a traffic shaping by HTB and iptables.I want to control bandwidth per IP so I create for each IP a class and I am using iptables marketing to assign individual filter to each ...
-3
votes
1answer
176 views

Understanding a shell script [closed]

there i am trying to understand the purpose of this shell script. If anyone can help out i would appreciate it. Thanks! This is located in android system at system/etc/throttle.sh #!/system/bin/sh # ...
3
votes
1answer
357 views

Ubuntu 14.04 - tc not working

I have used tc before on another servers to restrict the total bandwidth available on port 80, in order to make sure that there is enough throughput for port 22 during peak hours of the day. I need ...
4
votes
0answers
886 views

pfsense 2.0 traffic priority - set full priority for single host

I have a network with several computers all on the same network and since I have very limited bandwidth I would like to prioritize traffic almost like a CPU scheduler prioritize processes. Example: ...
0
votes
3answers
419 views

Distinguishing between types of P2P traffic on a Packet Shaper

I attend and work at a university where we have a packet shaper (an old Packeteer -- 3-ish years old or so) which relegates P2P traffic to the lowest priority in the queue in order to prevent P2P ...
11
votes
5answers
2k views

tc u32 — how to match L2 protocols in recent kernels?

I have a nice shaper, with hashed filtering, built at a linux bridge. In short, br0 connects external and internal physical interfaces, VLAN tagged packets are bridged "transparently" (I mean, no VLAN ...
0
votes
1answer
182 views

Windows 2003 R2 traffic shaping & QOS

In our small office a LAN is connected to a modem router that will VDSL to the Internet. As a Windows 2003 R2 server exists in the LAN, I was wondering if is there a way to use this server as a ...
2
votes
1answer
797 views

Dummynet Filtering not working on FreeBSD 10

I am trying to do network emulation using dummynet in FreeBSD 10. I have this working in 9.3 however things must have changed and I cant determine exactly what but my setup no longer works. I have ...
2
votes
1answer
1k views

Traffic shaping outbound clients source ip with tc / iptables

My question is I am trying to limit a users bandwidth on a server and wondering the best way to do this. Before I dive to far into the tc/iptables I was wondering if I could get any advice on this ...
0
votes
0answers
51 views

How to change give highest priority to Mail traffic on port 25 with tc

How can I give the highest priority to mail traffic on port 25 whit tc? I tried prio option but It didn't work out for me or maybe I'm missing something. I'd appreciate any help.