Will I be able to set up QoS from 2nd router?

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Prit369

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Jul 24, 2014
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So I have a main router (BT HH5) which does not have QoS but is pretty dam good, I wanted to limit the bandwidth of the rest of the users in network, and am thinking of getting an Asus n66.

I'm currently using an older router as a repeater from the HH5 for the rest of the users, and so I wanted to know will I be able to replace that old router with the asus and be able to use QoS from it? Or will the traffic go straight from the asus to the hh5 without QoS filtering?

I cant see a reason it wont work but I just wanted to confirm before buying the QoS router.


New set up will be:

Internet > HH5 > My PC via cable/wireless
........................> Ethernet to Ethernet on Asus QoS Router for QoS > Rest of the users.



Also, I noticed that I am unable to access the router settings (repeater router) of the PC that it is connected to. It does however allow me to access the router settings of the main one (HH5).

I've made sure I entered the correct ip (I've changed old router IP to 192.168.0.200 and disabled dhcp) but the PC thats connecting to the old router isn't able access or even acknowdge that IP.

ipconfig just shows the info of HH5, is this normal (since im only using it as a repeater, hence why I wanted to know if QoS will actually work)?
 
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It works when you can control traffic on both ends....like in a corporate network. Then you are always controlling traffic leaving your router for the network on both ends. That works well. It is the traffic coming in from the network you can not do much about.

VoIP and priority is stupid to even consider on the internet. All those fancy packet markings are removed by the first ISP router. Again this only really works in a corporate network where you have full control. Even the connection between the location is different. They have bandwidth guarantees and the provider will honor QoS since this is not internet.

Pretty much the only part of QoS you can really use effectively is to prevent you from overload your upload...
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bill001g

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I am not real clear how you intend to hook this up but QoS only works from traffic going WAN--LAN. Traffic going from say LAN to wireless or wireless to wireless including repeater mode does not pass though the QoS filters.

Even if you did QoS is kinda a hack when used on the internet. You can of course limit upload data pretty well. Download data can only to a point be limited it depends on the end user pc and application to cooperate and some programs like torrent intentionally do not.

So lets say you want to limit a user to say 5m download and for simplistic you have 100m between your 2 routers and you have a big internet connection that can download 100m.

So this user uses a application that says give me data and download at 50mbit no matter what. So the server on the internet send the data to your first router at 50m, it send it to the second router. The second router throws away 45m and only gives the end user 5m. You still are using 50m of traffic between the routers. The only way this would work is if the end user machines would detect that 45m was being discarded and request that the server send the data at a slower rate. It is actually much more complex than that but the end user application is actually the one in control not really the router. It does work to a point on many things like youtube or netflix but has little affect on programs like torrent and some other file download programs.
 
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Prit369

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I thought asus router's QoS actually puts a limit on the bandwidth and not based on total bandwidth you have? Thats the impression I got when looking at their dummy UI.

And yeah, I dont care about the LAN-LAN traffic, I only want to limit WAN-LAN.

Regardless, it doesn't matter if they use the full 50/50Mb when I'm not using it, as long as I get to use 45/50Mb when I'm in need of it.
 
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bill001g

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Even if you would mange to get some QoS configured you will not get a rules that only works when you need it and they can use it other wise.

The only method that is even possible is to put a hard limit on the other traffic that is limited at all times even if there is more bandwidth available.

The major problem you have is you are trying to fix a problem after the damage has already happened. The ISP determines what is sent and what is discarded by the time your router gets involved it can do little. Its not like it can un delete data that the ISP did not send and delete something else.

Almost all the QoS stuff in routers is related to UPLOAD bandwidth rates and for those you can use all kinds of fancy rules because all the data is in the router memory at the time it must make a selection.
 
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Prit369

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Wow I did not know that.

But if routers cant tell the servers how much bandwidth to use, how does that work on protocols like VOIP (high) or streaming(low)? Is it because the end users system has it pre-determined to request the data at a lower/higher priority?
 
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bill001g

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Aug 9, 2012
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It works when you can control traffic on both ends....like in a corporate network. Then you are always controlling traffic leaving your router for the network on both ends. That works well. It is the traffic coming in from the network you can not do much about.

VoIP and priority is stupid to even consider on the internet. All those fancy packet markings are removed by the first ISP router. Again this only really works in a corporate network where you have full control. Even the connection between the location is different. They have bandwidth guarantees and the provider will honor QoS since this is not internet.

Pretty much the only part of QoS you can really use effectively is to prevent you from overload your upload bandwidth. Someone who would say stream video could make sure their stream always got priority over all traffic being sent out of their house.
 
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