Queue: Speedtest need advise

RouterOS Beginner Basics
1

Hi Fellow MT Enthusiast,

Can you help me figure out a firewall configuration on MT CCR1009/1016 that will let www.speedtest.net shows the approximate bandwidth of an ISP, if I have 30Mbps?
Currently, I have mangle rules with simple queue to limit download speed when it reached 200M, it will fall to a queue with lower bandwidth (2Mbps) . This is where the speedtest falls its connection mark which lead to incorrect result of speedtest. Showing 2Mbps instead of 30Mbps.

Here’s my config:
/ip firewall mangle
add action=mark-packet chain=prerouting connection-bytes=0-200000000 connection-mark=Surfing new-packet-mark=Browsing
add action=mark-packet chain=prerouting connection-bytes=200000000-0 connection-mark=Browsing new-packet-mark=DOWNLOAD

/queue simple
add burst-limit=2M/2M burst-threshold=2M/2M burst-time=10s/10s limit-at=2M/2M max-limit=2M/2M packet-marks=DOWNLOAD

2

Hey

Why not increase the limit so that a single speedtest session doesn’t go over it?

3

Hi Sebastia,
Thanks for the response.
If we do increase the limit. It will affects the purpose of clipping the bandwidth usage if a user exceed 200M of download.

4

Yes it will. Then again, I don’t expect single speedtest session to need much more than that.
If you don’t want to touch that limit, you need some other way to exclude the speedtest from bandwidth manangement.

  • based on src-ip: from a specific system?
  • based on dst-ip: speedtest of you isp will be from a specific destination ip
  • pattern matching: in http (content=..) or https (TLS SNI) matching, and assign it a different mark so it won’t be limited
5

It doesn’t fail, it precisely indicates to the user what tricks you have made.
Maybe you do not want to uncover the truth, that is another matter.