ATTACKS TO UDP PORT 53 (DNS)
Hello Mikrotik Developers and Users.
I did found several mikrotik routers (any model) connected to the Internet failing due to induced saturation in WAN Port. The users report extreme slowness when browsing the Internet. When the Router is disconnected from LAN side the saturation continues like the Router is sending packets toward the Internet Cloud (Tx Saturation).
This problem often occurs when static public addresses are used in the WAN port.
I solved it by adding a filter rule dropping any incoming packets in WAN Port with destination port 53 UDP.
Does any of you has experienced with it ?
Does Mikrotik is working in this issue ?
Any recommendations ?