I have D-link router model DIR-300 with the latest firmware. Almost everyday, when I check log of my router I can see:
Xmas port scan attack from WAN (ip:172.30.47.106) detected.
I use all protection I can - only computers with selected MAC address can access my network, firewall rules are set up, WAN ping is disabled, remote managment is disabled, etc. Although my firewall protects me well, that Xmas attack slows down my router. I can create some firewall rules and deny specific ip address but I do not know how to use them.
I would like to ask whether I can do something to prevent my router from being attacked all the time.