What is this UFW rejected traffic that I'm seeing?

I know that 192.68.1.1 is my router and I know that 224.0.0.1 is a broadcast address and I've deduced that 192.68.1.14 is my old Roku. I don't see any mention of what port is being hit. I do use DDNS but turning it off seems to have no effect. Any ideas?

May 9 11:41:52 hostmachine kernel: [217434.611111] [UFW BLOCK] IN=enp8s0 OUT= MAC=[redacted] SRC=192.168.1.1 DST=224.0.0.1 LEN=36 TOS=0x00 PREC=0xC0 TTL=1 ID=44551 PROTO=2
May 9 11:42:18 hostmachine kernel: [217459.840883] [UFW BLOCK] IN=enp8s0 OUT= MAC=[redacted] SRC=192.168.1.1 DST=224.0.0.1 LEN=36 TOS=0x00 PREC=0xC0 TTL=1 ID=44552 PROTO=2
May 9 11:42:43 hostmachine kernel: [217484.726835] [UFW BLOCK] IN=enp8s0 OUT= MAC=[redacted] SRC=192.168.1.1 DST=224.0.0.1 LEN=36 TOS=0x00 PREC=0xC0 TTL=1 ID=44553 PROTO=2
May 9 11:43:08 hostmachine kernel: [217510.408467] [UFW BLOCK] IN=enp8s0 OUT= MAC=[redacted] SRC=192.168.1.1 DST=224.0.0.1 LEN=36 TOS=0x00 PREC=0xC0 TTL=1 ID=44554 PROTO=2
May 9 11:43:10 hostmachine kernel: [217512.006897] [UFW BLOCK] IN=enp8s0 OUT= MAC=[redacted] SRC=192.168.1.14 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=62712 PROTO=2 

This crap is filling up my logs.

5 Reset to default

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