I glanced at the logs of a production server and messages is full of;
Jun 5 10:15:16 server7c kernel: br0: received packet on enp0s17 with own address as source address (addr:08:00:27:10:08:fb, vlan:0)
Jun 5 10:15:16 server7c kernel: br0: received packet on enp0s17 with own address as source address (addr:08:00:27:10:08:fb, vlan:0)
Jun 5 10:15:21 server7c kernel: br0: received packet on enp0s17 with own address as source address (addr:08:00:27:10:08:fb, vlan:0)
This is a standalone vm, single interface, samba dc and nextcloud server, all the logs are full of this back to mid may so I don’t know when it started but wasn’t doing this last time I skimmed the logs… a while back. Not sure what’s generating the ping.
Is it me, or does there seem to be a few firewall related problems around at the moment? There are posts about martian packets, arps floods and sporadic WAN connections. They all seem to be related to RHEL based distributions. NS, ClearOS, RHEL.
e.g.
They’re probably not related, but it does seem strange how many firewall problems there seems to be at the moment.