3000L deployment showing following in logs. what does this mean?
kernel: [11033429.652461] IPT: IN=br-lan OUT=br-lan PHYSIN=eth0 PHYSOUT=ath0 MAC=ff:ff:ff:ff:ff:ff:b8:69:f4:a5:7a:b0:08:00 SRC=192.168.88.1 DST=255.255.255.255 LEN=328 TOS=0x00 PREC=0x00 TTL=16 ID=0 PROTO=UDP SPT=67 DPT=68 LEN=308
that is a broadcast trace. it show the broadcast came from the bridged lan port eth0 and was sent out the bridged lan port ath0 (wireless) from source IP 192.168.88.1 to all/any device.
depending on your logging level and setup, these are common since the IP protocol uses ARP to locate IP to MAC addresses.
So without knowing a lot more about your network design and how your network operates, this is just a broadcast packet from your network to the SMs.