Contained in this post is a free copy of my 2013 QoS tree (compatible with v6.0) for anyone to do what they want with, I only ask that if you republish this you include a link to this post.
It is intended to work on a per-interface basis; with you specifying the WAN interface and the speed limit it is to have. You can then use simple-queues for your internal users for a full double-qos solution.
Janis M. from MikroTik was kind enough to point me to a copy of his presentation from the Russian MUM which I feel is an incredible helpful document and well worth a read by all of the current CCR users out there.
I would highly encourage anyone running (or thinking of running) CCR’s on their network to review this document, which both explains both the current workings and limitations of the CCR series and v6 or RouterOS as well as discussing what changes will be made in v7
The Tiktube video for the presentation isn’t up just yet but I’ll come back and add it when it has been uploaded by MikroTik.
Some of the most useful points cover:
Hopefully this is enough to catch your attention, now go get reading!
CloudCoreRouter and RouterOS v6.x – Tips and Tricks (Moscow MUM Russia 2014)
I was recently looking for a simpler alternative to something like RANCID to periodically backup all our MikroTik configs.
RANCID is great and all, but I didn’t really need the diff copies of each file, and I was plenty happy just knowing that I have a .backup and .rsc file for each router I manage.
Given I use Gmail it might have been ok just to have each router send them there and leave it at that, but I’m not really the sort of person to half-ass my afterhours projects.. I learnt from Greg that you have to just whole-ass them 🙂
Continue reading Gmail + Google Drive + MikroTik scripting = Automated Backups Folder
I was looking for a way to do a quick summary of the utilisation of my DHCP/PPP pools and stumbled across a helpful little script.
This was originally found on the MikroTik forums and posted back in 2010 written by dssmiktik, and surprisingly enough it works perfectly on even v6.0 with no changes required.
I found myself having to review some VoIP traffic related queries this week and while viewing a few packet captures realised there wasn’t and easy way to see what traffic was being tagged with different DSCP values.
I googled around for a little while and found that you can actually add a DSCP column to your wireshark view by following these steps:
1. Right click on one of the existing columns.
2. Click on column preferences
3. Click Add down the bottom
4. Click on the “New Column” Label and change it to “DSCP” then hit enter once.
5. With the new entry highlighted, change the Field Type to Custom (in the dropdown box)
6. In field name, copy and paste in ip.dsfield.dscp
7. Click Apply/Ok
You can drag the column back to the left side of the Info column (this was my preference as it’s easier to see) and you now have a simple view of the tag for any packet.
| TOS (Dec) | TOS (Hex) | TOS Precedence Name | TOS Delay flag | TOS Throughput flag | TOS Reliability flag | DSCP (Hex) | DSCP (Dec) | DSCP/PHB Class |
| 0 | 0x00 | Routine | 0 | 0 | 0 | 0x00 | 0 | none |
| 4 | 0x04 | Routine | 0 | 0 | 1 | 0x01 | 1 | none |
| 8 | 0x08 | Routine | 0 | 1 | 0 | 0x02 | 2 | none |
| 12 | 0x0C | Routine | 0 | 1 | 1 | 0x03 | 3 | none |
| 16 | 0x10 | Routine | 1 | 0 | 0 | 0x04 | 4 | none |
| 32 | 0x20 | Priority | 0 | 0 | 0 | 0x08 | 8 | cs1 |
| 40 | 0x28 | Priority | 0 | 1 | 0 | 0x0A | 10 | af11 |
| 48 | 0x30 | Priority | 1 | 0 | 0 | 0x0C | 12 | af12 |
| 56 | 0x38 | Priority | 1 | 1 | 0 | 0x0E | 14 | af13 |
| 64 | 0x40 | Immediate | 0 | 0 | 0 | 0x10 | 16 | cs2 |
| 72 | 0x48 | Immediate | 0 | 1 | 0 | 0x12 | 18 | af21 |
| 80 | 0x50 | Immediate | 1 | 0 | 0 | 0x14 | 20 | af22 |
| 88 | 0x58 | Immediate | 1 | 1 | 0 | 0x16 | 22 | af23 |
| 96 | 0x60 | Flash | 0 | 0 | 0 | 0x18 | 24 | cs3 |
| 104 | 0x68 | Flash | 0 | 1 | 0 | 0x1A | 26 | af31 |
| 112 | 0x70 | Flash | 1 | 0 | 0 | 0x1C | 28 | af32 |
| 120 | 0x78 | Flash | 1 | 1 | 0 | 0x1E | 30 | af33 |
| 128 | 0x80 | FlashOverride | 0 | 0 | 0 | 0x20 | 32 | cs4 |
| 136 | 0x88 | FlashOverride | 0 | 1 | 0 | 0x22 | 34 | af41 |
| 144 | 0x90 | FlashOverride | 1 | 0 | 0 | 0x24 | 36 | af42 |
| 152 | 0x98 | FlashOverride | 1 | 1 | 0 | 0x26 | 38 | af43 |
| 160 | 0xA0 | Critical | 0 | 0 | 0 | 0x28 | 40 | cs5 |
| 176 | 0xB0 | Critical | 1 | 0 | 0 | 0x2C | 44 | voice-admit |
| 184 | 0xB8 | Critical | 1 | 1 | 0 | 0x2E | 46 | ef |
| 192 | 0xC0 | InterNetworkControl | 0 | 0 | 0 | 0x30 | 48 | cs6 |
| 224 | 0xE0 | NetworkControl | 0 | 0 | 0 | 0x38 | 56 | cs7 |