Hello, there’s a few problems with Mikrotik UPNP:
-
The UPNP rules not working after WAN IP changed: http://forum.mikrotik.com/t/problem-with-upnp-portforwarding/99985/5
The UPNP rules are bounds to WAN IP only by default, not the WAN interface.
I found a solution in the post, but that need manual setup, so all rules made by programs(torrent etc.) automatically are still suffering. -
All UPNP rules are persist until manual remove or reboot.
As most program don’t remove UPNP rules on exit, this could be a mess after a long uptime, there’s always tons of unused rules, and they can only removed manually.
When combine with problem 1, this is even worse, many rules are completely dead after a WAN IP change, but they still remains.
There should be a option for UPNP rules timeout, those rules older than that would be auto removed.
Thank you for reading and hope Mikrotik would see this, it’s not fatal but really annoying.