Garbage in the logs, what does it mean?

Question

linux

There is a configured router, not configured by me. I recently noticed an overflow of system logs with this:
Aug 21 12:48:41 router kernel: [5361318.478876] RULE_79 - DENY IN=vlan3 OUT= MAC=00:50:56:b2:ed:c5:00:23:33:a7 :a5:1a:08:00 SRC=213.87.130.157 DST='My External IP' LEN=131 TOS=0x00 PREC=0x00 TTL=108 ID=18476 PROTO=UDP SPT=39727 DPT=6881 LEN=111
Aug 21 12 :48:43 router kernel: [5361320.776561] RULE_79 - DENY IN=vlan3 OUT= MAC=00:50:56:b2:ed:c5:00:23:33:a7:a5:1a:08:00 SRC=94.98 .143.236 DST='My External IP' LEN=131 TOS=0x00 PREC=0x00 TTL=114 ID=30027 PROTO=UDP SPT=1108 DPT=6881 LEN=111
Aug 21 12:48:48 PM router kernel: [5361325.927319] RULE_79 - DENY IN=vlan3 OUT= MAC=00:50:56:b2:ed:c5:00:23:33:a7:a5:1a:08:00 SRC=98.150.97.237 DST='My External IP' LEN=131 TOS=0x00 PREC=0x00 TTL=47 ID=5933 PROTO=UDP SPT=25504 DPT=6881 LEN=111
Aug 21 12:48:49 router kernel: [ 5361326.857379] RULE_79 - DENY IN=vlan3 OUT= MAC=00:50:56:b2:ed:c5:00:23:33:a7:a5:1a:08:00 SRC=123.27.185.181 DST='My external IP ' LEN=129 TOS=0x00 PREC=0x00 TTL=112 ID=57257 PROTO=UDP SPT=17093 DPT=6881 LEN=109
Aug 21 12:48:51 router kernel: [5361328.343068] RULE_79 - DENY IN=vlan3 OUT= MAC =00:50:56:b2:ed:c5:00:23:33:a7:a5:1a:08:00 SRC=98.150.97.237 DST='My External IP' LEN=131 TOS=0x00 PREC=0x00 TTL =47 ID=29114 PROTO=UDP SPT=25504 DPT=6881 LEN=111
Aug 21 12:48:52 PM router kernel: [5361329.570607] RULE_79 - DENY IN=vlan3 OUT= MAC=00:50:56:b2:ed:c5:00:23:33:a7:a5:1a:08:00 SRC=41.132.232.55 DST='My External IP' LEN=131 TOS=0x00 PREC=0x00 TTL=116 ID=10650 PROTO=UDP SPT=63485 DPT=6881 LEN=111
Aug 21 12:48:52 router kernel: [ 5361329.750988] RULE_79 - DENY IN=vlan3 OUT= MAC=00:50:56:b2:ed:c5:00:23:33:a7:a5:1a:08:00 SRC=41.135.95.196 DST='My external IP ' LEN=131 TOS=0x00 PREC=0x00 TTL=116 ID=17656 PROTO=UDP SPT=47478 DPT=6881 LEN=111
Aug 21 12:48:58 router kernel: [5361335.348793] RULE_79 - DENY IN=vlan3 OUT= MAC =00:50:56:b2:ed:c5:00:23:33:a7:a5:1a:08:00 SRC=109.247.58.19 DST='My External IP' LEN=131 TOS=0x00 PREC=0x00 TTL =114 ID=3975 PROTO=UDP SPT=25218 DPT=6881 LEN=111
Help me figure out what it is!