Hello everyone:
After the update v6.17, I found that it seems much this option.
See the WIKI, found no explanation of this option.
Can someone tell how this function with the choice?
Grateful 
you can add rate limitations to the customer as it gets dhcp-lease. This setting governs where new dynamic queue is added as queue order is important.
Hi Janis.
Is there a RADIUS attribute for this?
Why was this very awesome change not part of the change log?!? 
I think this change was not introduced in 6.17, but much earlier.
janisk, are there any chances for more improvements in dhcp leases in the future versions of RouterOS? I was asking about it in this post http://forum.mikrotik.com/t/feature-request-dhcp-leases-improvements/78960/1 ?
santa is correct. That is an old feature added some time ago, i do not even recall when it was made. Most probably during 6.0rc or 6.0beta phase.
Cool feature!, so is there a radius attribute to control this ?
yes, dhcp can be controlled via radius. Set where queues have to be placed and you can get rate limitation settings from RADIUS.
I just checked and it appears you can only do this on a per-lease basis.
How do we set the queue placement for a lease from RADIUS ?
of course, you do that per lease - every new lease will get its limitation. If you want to do some grouping you could give out address-list name and thus, bunch customers together.
or i not understand you correctly.
Oh… I was under the impression that this is a per-server setting… that I could set every dynamic lease to also create a dynamic queue.
On closer inspection, it appears you’re right… My oldest RouterOS installation is 6.9, and it indeed has this feature for static leases.
Then I have a tiny feature request… make this doable for dynamic leases as well? I mean, sure, one could make a lease script that makes a lease static as soon as it’s created, and adds those settings, but it would be more convenient (and less error prone) if that could be done by a server setting.
If you want to use radius and create SQ for every lease, just add proper reply attribute to the client configuration.
My simple client configuration:
"11:22:33:44:55:66" Cleartext-Password := "", NAS-Identifier == "mt-gdansk", Auth-Type := Accept
Framed-IP-Address = 172.16.100.1,
Framed-IP-Netmask = 255.255.255.0,
Mikrotik-Address-List = "clients_tariff1"
To create SQ you need to add this one:
Rate-Limit
Everything is described here: http://wiki.mikrotik.com/wiki/Manual:IP/DHCP_Server , take a look at “Access-Request” and “Access-Accept”.
In my opinion you can’t set “insert queue before” using radius.
that is correct, it is part of the configuration of DHCP-server where to place queues.
I understand how to do this. We are already using Mikrotik-Rate-Limit to set up a simple queues for DHCP leases dynamically from RADIUS.
My question was how we can set the “Insert Queue Before” option in a RADIUS response.
This appears to be done on a per-lease basis, not on a per-server basis. So that means that if it is done per-lease that if we are allocating leases from RADIUS we would need to respond per-lease from RADIUS to let RouterOS know where to “Insert Queue Before”…
Or maybe I have completely misunderstood the purpose of the “Insert Queue Before” feature. Janis, I cannot find anything on the Wiki describing this feature in detail, can you perhaps put something up ?