Hi. On Sat, Oct 09, 2021 at 10:00:06PM +0200, Hans wrote: > My system is debian/stable. > As now the new kernel version is released, which is 5.10.0-9-amd64, I updated > from 0-8-amd64 to 0-9-amd64. > > But, with this kernel I discovered, that the network traffic massively > increased. I am not sure, what is causing this. Examining with wiresharḱ and > also the syslog file, it looks like it has something to do with ntp. Also the > broadcast messages are more than normal.
I cannot confirm your observations. I have a small (<10 hosts) LAN all running Debian stable. NTP is used for time synchronization. Just like you, I've upgraded yesterday, and hosts are running kernel version 5.10.0-9 (only one of them runs amd64 though). I see nothing unusual in both tcpdump and ulogd2 (I use it for the traffic accounting). Specifically, there's nothing unusual in NTP packets, be it their size or quantity. Reco
