Rule 'Block_In_Not_SYN' triggered

Hello

This is not my router, but I am helping person with it.

I also have GL router but such crap I see first time.

Logs:

Tue May 13 12:34:56 2024 daemon.info dnsmasq[12345]: DNS request for www.example.com on eth0#eth0 via 192.168.1.1
Tue May 13 12:35:01 2024 daemon.warn dnsmasq[12345]: ICMP echo request from 192.168.1.100 to 192.168.1.1
Tue May 13 12:35:02 2024 daemon.warn dnsmasq[12345]: ICMP echo request from 192.168.1.100 to 192.168.1.1
Tue May 13 12:35:03 2024 daemon.warn dnsmasq[12345]: ICMP echo request from 192.168.1.100 to 192.168.1.1
Tue May 13 12:35:04 2024 daemon.warn dnsmasq[12345]: ICMP echo request from 192.168.1.100 to 192.168.1.1
Tue May 13 12:35:05 2024 daemon.warn dnsmasq[12345]: ICMP echo request from 192.168.1.100 to 192.168.1.1
Tue May 13 12:00:06 2024 daemon.warn firewall: Rule 'Block_In_Not_SYN' triggered
Tue May 13 12:00:07 2024 daemon.warn firewall: Rule 'Block_FWD_Not_SYN' triggered
Tue May 13 12:00:08 2024 daemon.warn firewall: Rule 'Block_In_Not_SYN' triggered
Tue May 13 12:00:09 2024 daemon.warn firewall: Rule 'Block_FWD_Not_SYN' triggered

Please provide additional information, see How to get support quickly

Hmm have you also other packages installed things like banip ?, i know banip has this recently added.

To be honest i have never seen these firewall chain messages even when i had this checkbox checked on lucis firewall, banip however can log these type of messages, but im not sure if it looks the same.