Queue Tree with more than two interfaces

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Basic Setup

This page will talk about how to make QUEUE TREE in RouterOS that with Masquerading for more than two interfaces. It's for sharing internet connection among users on each interfaces. In manual this possibility isn't written.

First, let's set the basic setting first. I'm using a machine with 3 or more network interfaces:

[admin@instaler] > in pr
#    NAME       TYPE    RX-RATE    TX-RATE    MTU  
0  R public     ether   0          0          1500 
1  R wifi1      wlan    0          0          1500
2  R wifi2      wlan    0          0          1500
3  R wifi3      wlan    0          0          1500

And this is the IP Addresses for each interface:

[admin@instaler] > ip ad pr
Flags: X - disabled, I - invalid, D - dynamic 
0    public   
1    wifi1
2    wifi2
3    wifi3

On the public you can add NAT or proxy if you want.

Mangle Setup

And now is the most important part in this case.

We need to mark our users. One connection for upload and second for download. In this example I add mangle for one user. At the end I add mangle for local transmission because I don't QoS local traffic among users. But for user I need to separate upload and download.

[admin@instaler] ip firewall mangle> print
Flags: X - disabled, I - invalid, D - dynamic 
0 chain=forward src-address= action=mark-connection \
   new-connection-mark=users-userU passthrough=yes comment="" disabled=no 
1 chain=forward dst-address= action=mark-connection \
   new-connection-mark=users-userD passthrough=yes comment="" disabled=no 
2 chain=forward connection-mark=users-userU action=mark-packet \
   new-packet-mark=userU passthrough=yes comment="" disabled=no 
3 chain=forward connection-mark=users-userD action=mark-packet \
   new-packet-mark=userD passthrough=yes comment="" disabled=no 
98  chain=forward src-address= dst-address= 
    action=mark-connection new-connection-mark=users-lokal passthrough=yes 
99  chain=forward connection-mark=users-lokal action=mark-packet 
    new-packet-mark=lokalTrafic passthrough=yes

Queue Tree Setup

And now, the queue tree setting. We need one rule for downlink and one rule for uplink. Be careful when choosing the parent. for downlink traffic, we use parent "global-out", because we have two or more downloading interfaces. And for uplink, we are using parent "public", we want QoS uplink traffic. (I'm using pcq-up and download from manual) This example is for 2Mb/1Mb

[admin@instaler] > queue tree pr
Flags: X - disabled, I - invalid 
0   name="Download" parent=global-out packet-mark="" limit-at=0 
    queue=pcq-download priority=1 max-limit=2000000 burst-limit=0 
    burst-threshold=0 burst-time=0s 
1   name="Upload" parent=WGW packet-mark="" limit-at=0 queue=pcq-upload 
    priority=1 max-limit=1000000 burst-limit=0 burst-threshold=0 

Now we add our user:

2   name="user10D" parent=Download packet-mark=userD limit-at=0 
    queue=pcq-download priority=5 max-limit=0 burst-limit=0 
    burst-threshold=0 burst-time=0s 
3   name="user10U" parent=Upload packet-mark=userU limit-at=0 
    queue=pcq-upload priority=5 max-limit=0 burst-limit=0 burst-threshold=0