Has anyone noticed a new behavior for address lists in RouterOS? The release notes for 6.37.3 show “firewall – fixed timeout option on address lists with domain name;” but I don’t see when that feature was actually added.
Specifically, if you add a DNS name as the address entry, it dynamically resolves all the IP’s for that name.
The best example is a name record that points to a CDN like WIndows’ Updates. I discovered this trying to mark and prioritize Windows’ updates, MAC Updates, iCloud photo uploads, etc.
Here is an example. Our website, www.ispsupplies.com is distributed by a CDN. One entry in the address list produces 8 dynamic entries, one for each CDN IP. I also noticed they update themselves dynamically, on an unknown schedule. I don’t see this in the Who wants to work together on a QOS system using this feature?
![No automatic alt text available.](https://blog.ispsupplies.com/wp-content/uploads/2017/11/24068152_10215017791627114_2123542182549842167_n.jpg)
![No automatic alt text available.](https://blog.ispsupplies.com/wp-content/uploads/2017/11/24131423_10215017792467135_8105083988001885842_n.jpg)
Source: Blog