In the previous example we dedicated 128Kib/s download and 64Kib/s upload traffic for the local network. In this example we will guarantee 256Kib/s download (128Kib/s for the server, 64Kib/s for the Workstation and also 64Kib/s for the Laptop) and 128Kib/s for upload (64/32/32Kib/s, respectivelly) for local network devices. Additionally, if there is spare bandwidth, share it among users equally. For example, if we turn off the laptop, share its 64Kib/s download and 32Kib/s upload to the Server and Workstation.
When using masquerading, you have to mark the outgoing connection with new-connection-mark and take the mark-connection action. When it is done, you can mark all packets which belong to this connection with the new-packet-mark and use the mark-packet action.
At first, mark the Server's download and upload traffic. With the first rule we will mark the outgoing connection and with the second one, all packets, which belong to this connection:
[admin@MikroTik] ip firewall mangle> add src-address=192.168.0.1/32 \
\... action=mark-connection new-connection-mark=server-con chain=prerouting
[admin@MikroTik] ip firewall mangle> add connection-mark=server-con \
\... action=mark-packet new-packet-mark=server chain=prerouting
[admin@MikroTik] ip firewall mangle> print
Flags: X - disabled, I - invalid, D - dynamic
0 chain=prerouting src-address=192.168.0.1 action=mark-connection
new-connection-mark=server-con
1 chain=prerouting connection-mark=server-con action=mark-packet
new-packet-mark=server
[admin@MikroTik] ip firewall mangle>
The same for Laptop and Workstation:
[admin@MikroTik] ip firewall mangle> add src-address=192.168.0.2 \
\... action=mark-connection new-connection-mark=lap_works-con chain=prerouting
[admin@MikroTik] ip firewall mangle> add src-address=192.168.0.3 \
\... action=mark-connection new-connection-mark=lap_works-con chain=prerouting
[admin@MikroTik] ip firewall mangle> add connection-mark=lap_works-con \
\... action=mark-packet new-packet-mark=lap_work chain=prerouting
[admin@MikroTik] ip firewall mangle> print
Flags: X - disabled, I - invalid, D - dynamic
0 chain=prerouting src-address=192.168.0.1 action=mark-connection
new-connection-mark=server-con
1 chain=prerouting connection-mark=server-con action=mark-packet
new-packet-mark=server
2 chain=prerouting src-address=192.168.0.2 action=mark-connection
new-connection-mark=lap_works-con
3 chain=prerouting src-address=192.168.0.3 action=mark-connection
new-connection-mark=lap_works-con
4 chain=prerouting connection-mark=lap_works-con action=mark-packet
new-packet-mark=lap_work
[admin@MikroTik] ip firewall mangle>
As you can see, we marked connections that belong for Laptop and Workstation with the same flow.
In /queue tree add rules that will limit Server's download and upload:
[admin@MikroTik] queue tree> add name=Server-Download parent=Local \
\... limit-at=131072 packet-mark=server max-limit=262144
[admin@MikroTik] queue tree> add name=Server-Upload parent=Public \
\... limit-at=65536 packet-mark=server max-limit=131072
[admin@MikroTik] queue tree> print
Flags: X - disabled, I - invalid
0 name="Server-Download" parent=Local packet-mark=server limit-at=131072
queue=default priority=8 max-limit=262144 burst-limit=0
burst-threshold=0 burst-time=0s
1 name="Server-Upload" parent=Public packet-mark=server limit-at=65536
queue=default priority=8 max-limit=131072 burst-limit=0
burst-threshold=0 burst-time=0s
[admin@MikroTik] queue tree>
And similar config for Laptop and Workstation:
[admin@MikroTik] queue tree> add name=Laptop-Wkst-Down parent=Local \
\... packet-mark=lap_work limit-at=65535 max-limit=262144
[admin@MikroTik] queue tree> add name=Laptop-Wkst-Up parent=Public \
\... packet-mark=lap_work limit-at=32768 max-limit=131072
[admin@MikroTik] queue tree> print
Flags: X - disabled, I - invalid
0 name="Server-Download" parent=Local packet-mark=server limit-at=131072
queue=default priority=8 max-limit=262144 burst-limit=0
burst-threshold=0 burst-time=0s
1 name="Server-Upload" parent=Public packet-mark=server limit-at=65536
queue=default priority=8 max-limit=131072 burst-limit=0
burst-threshold=0 burst-time=0s
2 name="Laptop-Wkst-Down" parent=Local packet-mark=lap_work limit-at=65535
queue=default priority=8 max-limit=262144 burst-limit=0
burst-threshold=0 burst-time=0s
3 name="Laptop-Wkst-Up" parent=Public packet-mark=lap_work limit-at=32768
queue=default priority=8 max-limit=131072 burst-limit=0
burst-threshold=0 burst-time=0s
[admin@MikroTik] queue tree>
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