I am getting this in the log over and over.
Jan 3 15:45:17 kernel: br0: received packet on vlan1 with own address as source address
Jan 3 15:45:17 kernel: br0: received packet on vlan1 with own address as source address
Jan 3 15:45:18 kernel: br0: received packet on vlan1 with own address as source address
Jan 3 15:45:19 kernel: br0: received packet on vlan1 with own address as source address
Jan 3 15:45:20 kernel: br0: received packet on vlan1 with own address as source address
Jan 3 15:45:21 kernel: br0: received packet on vlan1 with own address as source address
Jan 3 15:45:22 kernel: br0: received packet on vlan1 with own address as source address
Jan 3 15:45:23 kernel: br0: received packet on vlan1 with own address as source address
Jan 4 19:53:39 kernel: net_ratelimit: 37136 callbacks suppressed
Jan 4 19:53:39 kernel: br0: received packet on vlan1 with own address as source address
Jan 4 19:53:39 kernel: br0: received packet on vlan1 with own address as source address
Jan 4 19:53:39 kernel: br0: received packet on vlan1 with own address as source address
Jan 4 19:53:39 kernel: br0: received packet on vlan1 with own address as source address
Jan 4 19:53:39 kernel: br0: received packet on vlan1 with own address as source address
Jan 4 19:53:39 kernel: br0: received packet on vlan1 with own address as source address
Jan 4 19:53:39 kernel: br0: received packet on vlan1 with own address as source address
Jan 4 19:53:39 kernel: br0: received packet on vlan1 with own address as source address
Jan 4 19:53:39 kernel: br0: received packet on vlan1 with own address as source address
Jan 4 19:53:39 kernel: br0: received packet on vlan1 with own address as source address
Jan 4 19:53:44 kernel: net_ratelimit: 37020 callbacks suppressed
Jan 4 19:53:44 kernel: br0: received packet on vlan1 with own address as source address
Jan 4 19:53:44 kernel: br0: received packet on vlan1 with own address as source address
Jan 4 19:53:44 kernel: br0: received packet on vlan1 with own address as source address
Jan 4 19:53:44 kernel: br0: received packet on vlan1 with own address as source address
Jan 4 19:53:44 kernel: br0: received packet on vlan1 with own address as source address
Jan 4 19:53:44 kernel: br0: received packet on vlan1 with own address as source address
Jan 4 19:53:44 kernel: br0: received packet on vlan1 with own address as source address
Jan 4 19:53:44 kernel: br0: received packet on vlan1 with own address as source address
Jan 4 19:53:44 kernel: br0: received packet on vlan1 with own address as source address
Jan 4 19:53:44 kernel: br0: received packet on vlan1 with own address as source address
Got them too. I disagree that these can be ignored, especially when syslog is suppressing blocks of 37k messages at a time. My router is running 8 days, and ping responses are starting to slow between PC and router. First CPU sits idle at approximately 9-14% utilization, while these messages continue to build.