An attacker is already attacking for 5 years without success. All he reaches in recent time is, that Linux freezes or that network-manager apparently freezes. I have to reboot then. The internet-connection is not possible before re-boot.
All I can get is apparently his IP-Address from where he is coming from :
fd80:43:b813:0:e265:115d:cd2a:6249
Does network-manager need additionally protection against that it might get crashed ?!