Forged Alliance Forever

Re: How to set up QOS? (Networking question)

2014-08-03T09:33:22+02:00

wouldn't your wireshark see your local windows packets? Ie: with no special treatment

isn't wireshark unable to see the communication between the router and the isp?

so the qos would be hidden from you

well ... sort of? Wireshark monitors a specific NIC at least ime.

So when you say "modem" to ISP what do you mean, like packets or login details or what not? As I understand any packets sent via your ISP are the same as the ones sent from your NIC only with next hop/shortest path information attacked; the actual packet contents remain unchanged. All routers (kinda visualise the ISP as a big router in this metaphor) can do is decapsulate incoming packets check the destination, reencapsulate it then send it on to the next hop in the path.

All the communication between router and ISP occurs at data link or physical layers - and since WIreshark only sniffs IP level protocols (e,g TCP etc.) it's not designed to interpret or capture this technology. If you want to capture L4 You can use the routers logs to monitor its traffic usually although YMMV.

Statistics: Posted by Anaryl — 03 Aug 2014, 09:33

Re: How to set up QOS? (Networking question)

2014-07-29T05:56:56+02:00

Thanks I will read later. I was thinking (imagining) you could affect downlink because doesnt the sender wait for acknowledgement before it sends more? It's not like it just sends you all 200mb of a file if you are not ready for it. So if your router just delayed acknowledgement of packets ... it could control the download speed.

Statistics: Posted by nine2 — 29 Jul 2014, 05:56

Re: How to set up QOS? (Networking question)

2014-07-29T04:56:08+02:00

Heres quite an interesting article on QoS. Specifically it talks about how you can affect the downlink by controlling the uplink. The gist is that you need to replace your router's firmware with this "tomatousb" firmware because vendor firmwares' QoS typically isn't smart enough.

http://www.linksysinfo.org/index.php?th ... ial.68795/

Statistics: Posted by Axle — 29 Jul 2014, 04:56

Re: How to set up QOS? (Networking question)

2014-07-26T10:04:58+02:00

Yeah seems to work great for saturated uplink at least. But for downlink ... hmmm that would require my isp to decide that the packets should be EF. I don't think I have much control over that so I guess we're screwed :/

Statistics: Posted by Axle — 26 Jul 2014, 10:04

Re: How to set up QOS? (Networking question)

2014-07-26T09:33:11+02:00

So... it worked perfectly

Is that correct?

Statistics: Posted by nine2 — 26 Jul 2014, 09:33

Re: How to set up QOS? (Networking question)

2014-07-26T07:24:40+02:00

Alrighty, so I used iperf to saturate my adsl link between home and work, then tried to join a few russian games. Managed to grab a few interesting screen shots before they started yelling at me in russian and then kicked me.

https://www.dropbox.com/s/b0ig99oguienuah/qos.pdf

Statistics: Posted by Axle — 26 Jul 2014, 07:24

Re: How to set up QOS? (Networking question)

2014-07-26T03:14:15+02:00

Apparently you can set up a group policy on your windows box to mark the packets high priority. You should be able to see that have an effect in wireshark. Don't know how to tell after that if it achieves much

Statistics: Posted by nine2 — 26 Jul 2014, 03:14

Re: How to set up QOS? (Networking question)

2014-07-26T02:55:26+02:00

yeah good point. I guess I have to think of some other way to verify

Statistics: Posted by Axle — 26 Jul 2014, 02:55

Re: How to set up QOS? (Networking question)

2014-07-25T17:02:07+02:00

And wireshark is capable of seeing the packets sent from the modem to your isp?

disclaimer: im a network noob

wouldn't your wireshark see your local windows packets? Ie: with no special treatment

isn't wireshark unable to see the communication between the router and the isp?

so the qos would be hidden from you

Statistics: Posted by nine2 — 25 Jul 2014, 17:02

Re: How to set up QOS? (Networking question)

2014-07-25T16:25:20+02:00

No on my router. dlink DSL 526B.

Statistics: Posted by Axle — 25 Jul 2014, 16:25

Re: How to set up QOS? (Networking question)

2014-07-25T16:18:10+02:00

Did you set the rules up locally on your windows box?

Statistics: Posted by nine2 — 25 Jul 2014, 16:18

Re: How to set up QOS? (Networking question)

2014-07-25T12:20:06+02:00

I tried messing around with QoS too. I set up some rules to flag as EF anything coming or going to udp port 6112. To try verify I loaded wireshark and inspected the DSCP codes of all the relevant udp packets. However they were all still 0x00 :/ So I guess its not working ...

Statistics: Posted by Axle — 25 Jul 2014, 12:20

Re: How to set up QOS?

2014-07-24T04:04:27+02:00

Adding more bandwidth is not an option. I have tonnes of devices all running windows update and people watching youtube and maybe something downloading and ipads syncing whenever they want. I was hoping that QOS could help with that and it sounds like to some extent it can.

@Anaryl, what were you going to say? I'm interested

Does anyone know of a way to test if it is working or not? All I can think of is to start a test game with someone and measure the ping. Then do it whilst maxing out my bandwidth on another computer. Then doing it again with QOS enabled.

Statistics: Posted by nine2 — 24 Jul 2014, 04:04

Re: How to set up QOS?

2014-07-23T21:17:40+02:00

Wat.

That's not how you even ...

f*** it.

edit: I think you guys might be thinking of DiffServ http://www.cisco.com/en/US/technologies ... a3e2f.html
In that case it could help - although it would depend on the size of the LAN. To be honest if you can afford it and it's possible, add more bandwidth. If you are talking ADSL & a congested LAN sharehouse type situation - adding another discrete connection is more cost effective and will yield better results than QoS.

Statistics: Posted by Anaryl — 23 Jul 2014, 21:17

Re: How to set up QOS?

2014-07-22T12:43:00+02:00

A lot of routers with QoS do it the nonsense way. The one I had (Linksys AG241) would just limit everything marked as "less important" to 10% of maximum bandwidth, regardless of use...

Statistics: Posted by E8400-CV — 22 Jul 2014, 12:43