私のシステムログを見ると、その99％が3つまたは4つのIPのUFW BLOCKステートメントで構成されていることがわかります（下記参照、スペース編集）。これは普通ですか？このアイテムはどういう意味ですか？安全であれば、どのように修正したりログに記録されないようにすることができますか？この問題を検索してみると、マルチキャストと関連があるようですが、私が知っていることはありません。 UDP用の224.0.0.0/24にインバウンド/アウトバウンドアクセスを追加し、UFWを再起動してみましたが、役に立ちませんでした。
UFW設定
Logging: on (low)
Default: deny (incoming), allow (outgoing), disabled (routed)
New profiles: skip
To Action From
-- ------ ----
80,443/tcp (WWW Full) ALLOW IN Anywhere
5900/tcp (VNC) ALLOW IN Anywhere
22/tcp (SSH) ALLOW IN Anywhere
5901 ALLOW IN Anywhere
3306 ALLOW IN 192.168.0.0/16
631 (CUPS) ALLOW IN Anywhere
224.0.0.0/24/udp ALLOW IN Anywhere
80,443/tcp (WWW Full (v6)) ALLOW IN Anywhere (v6)
5900/tcp (VNC (v6)) ALLOW IN Anywhere (v6)
22/tcp (SSH (v6)) ALLOW IN Anywhere (v6)
5901 (v6) ALLOW IN Anywhere (v6)
631 (CUPS (v6)) ALLOW IN Anywhere (v6)
ff02::1/udp ALLOW IN Anywhere (v6)
224.0.0.0/24/udp ALLOW OUT Anywhere
ff02::1/udp ALLOW OUT Anywhere (v6)
システムログ
Jul 22 07:41:07 rpiserver kernel: [200897.130231] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42871 PROTO=2
Jul 22 07:41:09 rpiserver kernel: [200898.353921] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:00:1b:b1:89:eb:df:08:00 SRC=192.168.11.36 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=30287 PROTO=2
Jul 22 07:41:52 rpiserver kernel: [200941.466217] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:fc:d8:48:3c:d0:fb:08:00 SRC=192.168.11.60 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=58252 PROTO=2
Jul 22 07:41:52 rpiserver kernel: [200941.466345] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.251 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=5859 PROTO=2
Jul 22 07:41:53 rpiserver kernel: [200942.487756] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:b8:27:eb:cf:60:b6:08:00 SRC=192.168.11.140 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2
Jul 22 07:43:12 rpiserver kernel: [201021.848041] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42872 PROTO=2
Jul 22 07:43:19 rpiserver kernel: [201028.200702] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:b8:27:eb:cf:60:b6:08:00 SRC=192.168.11.140 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2
Jul 22 07:43:54 rpiserver kernel: [201064.139493] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:f0:03:8c:d4:ae:af:08:00 SRC=192.168.11.129 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=58854 PROTO=2
Jul 22 07:45:17 rpiserver kernel: [201146.776542] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42873 PROTO=2
Jul 22 07:45:18 rpiserver kernel: [201147.390831] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:00:1b:b1:89:eb:df:08:00 SRC=192.168.11.36 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=30307 PROTO=2
Jul 22 07:45:26 rpiserver kernel: [201155.174401] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:30:52:cb:ae:19:48:08:00 SRC=192.168.11.30 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=12040 PROTO=2
Jul 22 07:47:23 rpiserver kernel: [201272.217144] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42874 PROTO=2
Jul 22 07:47:28 rpiserver kernel: [201277.951599] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:b8:27:eb:cf:60:b6:08:00 SRC=192.168.11.140 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2
Jul 22 07:47:29 rpiserver kernel: [201278.361758] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:00:1b:b1:89:eb:df:08:00 SRC=192.168.11.36 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=30319 PROTO=2
Jul 22 07:48:15 rpiserver kernel: [201324.953364] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:fc:d8:48:46:ce:ec:08:00 SRC=192.168.11.8 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=60685 PROTO=2
Jul 22 07:49:27 rpiserver kernel: [201397.151998] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42875 PROTO=2
Jul 22 07:49:37 rpiserver kernel: [201406.566453] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:b8:27:eb:cf:60:b6:08:00 SRC=192.168.11.140 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2
Jul 22 07:51:11 rpiserver kernel: [201500.980593] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:cc:20:e8:21:ca:c8:08:00 SRC=192.168.11.175 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=27258 PROTO=2
Jul 22 07:51:33 rpiserver kernel: [201522.278789] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42876 PROTO=2
Jul 22 07:51:35 rpiserver kernel: [201524.329279] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:30:52:cb:ae:19:48:08:00 SRC=192.168.11.30 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=12088 PROTO=2
Jul 22 07:53:37 rpiserver kernel: [201647.103024] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42877 PROTO=2
Jul 22 07:53:41 rpiserver kernel: [201650.795068] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:30:52:cb:ae:19:48:08:00 SRC=192.168.11.30 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=12102 PROTO=2
Jul 22 07:55:42 rpiserver kernel: [201772.033729] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42878 PROTO=2
Jul 22 07:55:46 rpiserver kernel: [201775.314779] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:30:52:cb:ae:19:48:08:00 SRC=192.168.11.30 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=12113 PROTO=2
Jul 22 07:55:47 rpiserver kernel: [201776.536158] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:00:1b:b1:89:eb:df:08:00 SRC=192.168.11.36 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=30372 PROTO=2
Jul 22 07:57:47 rpiserver kernel: [201897.166916] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42879 PROTO=2
Jul 22 07:57:50 rpiserver kernel: [201899.625495] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:30:52:cb:ae:19:48:08:00 SRC=192.168.11.30 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=12126 PROTO=2
Jul 22 07:59:14 rpiserver kernel: [201984.104811] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:cc:20:e8:21:ca:c8:08:00 SRC=192.168.11.175 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=61713 PROTO=2
Jul 22 07:59:53 rpiserver kernel: [202022.300223] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42880 PROTO=2
Jul 22 07:59:55 rpiserver kernel: [202024.754811] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:30:52:cb:ae:19:48:08:00 SRC=192.168.11.30 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=12143 PROTO=2
Jul 22 08:01:41 rpiserver kernel: [202130.640971] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.251 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=5860 PROTO=2
Jul 22 08:01:41 rpiserver kernel: [202130.641242] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:fc:d8:48:46:ce:ec:08:00 SRC=192.168.11.8 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=13207 PROTO=2
Jul 22 08:01:57 rpiserver kernel: [202147.126435] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42881 PROTO=2
Jul 22 08:01:58 rpiserver kernel: [202147.331561] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:f4:f5:d8:b1:4e:26:08:00 SRC=192.168.11.104 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2
Jul 22 08:04:03 rpiserver kernel: [202272.362170] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42882 PROTO=2
Jul 22 08:04:06 rpiserver kernel: [202275.229425] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:f4:f5:d8:b1:4e:26:08:00 SRC=192.168.11.104 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2
Jul 22 08:06:07 rpiserver kernel: [202396.983416] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42883 PROTO=2
Jul 22 08:06:08 rpiserver kernel: [202397.190250] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:30:52:cb:ae:19:48:08:00 SRC=192.168.11.30 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=12187 PROTO=2
Jul 22 08:07:19 rpiserver kernel: [202468.460367] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:cc:20:e8:21:ca:c8:08:00 SRC=192.168.11.175 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=63754 PROTO=2
Jul 22 08:08:13 rpiserver kernel: [202522.321647] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42884 PROTO=2
Jul 22 08:08:13 rpiserver kernel: [202522.937013] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:b8:27:eb:cf:60:b6:08:00 SRC=192.168.11.140 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2
Jul 22 08:08:16 rpiserver kernel: [202525.598293] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:cc:20:e8:21:ca:c8:08:00 SRC=192.168.11.175 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=17827 PROTO=2
Jul 22 08:08:49 rpiserver kernel: [202558.674836] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.251 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=5861 PROTO=2
Jul 22 08:08:50 rpiserver kernel: [202559.288053] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:30:52:cb:ae:19:48:08:00 SRC=192.168.11.30 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=12200 PROTO=2
Jul 22 08:09:01 rpiserver CRON[23924]: (root) CMD ( [ -x /usr/lib/php5/sessionclean ] && /usr/lib/php5/sessionclean)
Jul 22 08:09:01 rpiserver CRON[23932]: (root) CMD ( [ -x /usr/lib/php/sessionclean ] && if [ ! -d /run/systemd/system ]; then /usr/lib/php/sessionclean; fi)
Jul 22 08:09:03 rpiserver systemd[1]: Starting Clean php session files...
Jul 22 08:09:03 rpiserver systemd[1]: Started Clean php session files.
Jul 22 08:10:18 rpiserver kernel: [202647.352331] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42885 PROTO=2
Jul 22 08:10:19 rpiserver kernel: [202648.786151] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:b8:27:eb:cf:60:b6:08:00 SRC=192.168.11.140 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2
Jul 22 08:10:48 rpiserver kernel: [202677.762409] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:cc:20:e8:21:ca:c8:08:00 SRC=192.168.11.175 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=36218 PROTO=2
Jul 22 08:11:31 rpiserver kernel: [202720.261915] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:fc:d8:48:3c:d0:fb:08:00 SRC=192.168.11.60 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=16506 PROTO=2
Jul 22 08:12:05 rpiserver kernel: [202754.567044] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.251 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=5862 PROTO=2
Jul 22 08:12:05 rpiserver kernel: [202754.567170] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:fc:d8:48:3c:d0:fb:08:00 SRC=192.168.11.60 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=12999 PROTO=2
Jul 22 08:12:22 rpiserver kernel: [202772.076072] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42886 PROTO=2
Jul 22 08:12:23 rpiserver kernel: [202772.278091] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:30:52:cb:ae:19:48:08:00 SRC=192.168.11.30 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=12238 PROTO=2
Jul 22 08:14:28 rpiserver kernel: [202897.414683] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42887 PROTO=2
Jul 22 08:14:30 rpiserver kernel: [202899.465660] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:f4:f5:d8:b1:4e:26:08:00 SRC=192.168.11.104 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2
Jul 22 08:16:33 rpiserver kernel: [203022.240598] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42888 PROTO=2
Jul 22 08:16:35 rpiserver kernel: [203024.698275] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:00:1b:b1:89:eb:df:08:00 SRC=192.168.11.36 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=30490 PROTO=2
Jul 22 08:18:38 rpiserver kernel: [203147.375047] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42889 PROTO=2
Jul 22 08:18:39 rpiserver kernel: [203148.193364] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:30:52:cb:ae:19:48:08:00 SRC=192.168.11.30 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=12277 PROTO=2
Jul 22 08:20:43 rpiserver kernel: [203272.507279] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42890 PROTO=2
Jul 22 08:20:43 rpiserver kernel: [203272.711947] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:30:52:cb:ae:19:48:08:00 SRC=192.168.11.30 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=12285 PROTO=2
Jul 22 08:22:48 rpiserver kernel: [203397.439781] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42891 PROTO=2
Jul 22 08:22:49 rpiserver kernel: [203398.869541] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:f4:f5:d8:b1:4e:26:08:00 SRC=192.168.11.104 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2
Jul 22 08:24:52 rpiserver kernel: [203521.852334] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42892 PROTO=2
Jul 22 08:24:53 rpiserver kernel: [203523.081228] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:b8:27:eb:cf:60:b6:08:00 SRC=192.168.11.140 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2
Jul 22 08:26:58 rpiserver kernel: [203647.397325] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42893 PROTO=2
Jul 22 08:26:58 rpiserver kernel: [203647.804807] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:30:52:cb:ae:19:48:08:00 SRC=192.168.11.30 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=12327 PROTO=2
Jul 22 08:29:03 rpiserver kernel: [203772.426861] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42894 PROTO=2
Jul 22 08:29:03 rpiserver kernel: [203772.631665] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:00:1b:b1:89:eb:df:08:00 SRC=192.168.11.36 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=30556 PROTO=2
Jul 22 08:30:29 rpiserver kernel: [203859.057068] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:cc:20:e8:21:ca:c8:08:00 SRC=192.168.11.175 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=26206 PROTO=2
Jul 22 08:31:07 rpiserver kernel: [203896.839703] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42895 PROTO=2
Jul 22 08:31:10 rpiserver kernel: [203899.706930] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:30:52:cb:ae:19:48:08:00 SRC=192.168.11.30 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=12364 PROTO=2
Jul 22 08:31:22 rpiserver kernel: [203911.794400] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:fc:d8:48:46:ce:ec:08:00 SRC=192.168.11.8 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=62194 PROTO=2
Jul 22 08:31:22 rpiserver kernel: [203911.794524] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.251 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=5863 PROTO=2
Jul 22 08:31:23 rpiserver kernel: [203912.201449] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:30:52:cb:ae:19:48:08:00 SRC=192.168.11.30 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=12368 PROTO=2
Jul 22 08:31:23 rpiserver kernel: [203912.202271] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:f4:f5:d8:b1:4e:26:08:00 SRC=192.168.11.104 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2
Jul 22 08:31:23 rpiserver kernel: [203912.814213] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:fc:d8:48:46:ce:ec:08:00 SRC=192.168.11.8 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=47037 PROTO=2
Jul 22 08:32:28 rpiserver kernel: [203978.150212] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:90:8d:6c:17:13:32:08:00 SRC=192.168.11.5 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=62071 PROTO=2
Jul 22 08:33:13 rpiserver kernel: [204022.587317] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42896 PROTO=2
Jul 22 08:33:14 rpiserver kernel: [204023.611551] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:b8:27:eb:cf:60:b6:08:00 SRC=192.168.11.140 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2
Jul 22 08:35:18 rpiserver kernel: [204147.521439] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42897 PROTO=2
Jul 22 08:35:22 rpiserver kernel: [204151.615197] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:90:8d:6c:17:13:32:08:00 SRC=192.168.11.5 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=35632 PROTO=2
Jul 22 08:37:22 rpiserver kernel: [204271.935530] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42898 PROTO=2
Jul 22 08:37:25 rpiserver kernel: [204274.799716] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:b8:27:eb:cf:60:b6:08:00 SRC=192.168.11.140 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2
Jul 22 08:38:38 rpiserver kernel: [204347.713070] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.251 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=5864 PROTO=2
Jul 22 08:38:40 rpiserver kernel: [204350.169613] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:00:1b:b1:89:eb:df:08:00 SRC=192.168.11.36 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=30614 PROTO=2
Jul 22 08:39:28 rpiserver kernel: [204397.683527] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42899 PROTO=2
Jul 22 08:39:30 rpiserver kernel: [204400.140961] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:00:1b:b1:89:eb:df:08:00 SRC=192.168.11.36 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=30617 PROTO=2
Jul 22 08:39:30 rpiserver kernel: [204400.141099] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:30:52:cb:ae:19:48:08:00 SRC=192.168.11.30 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=12402 PROTO=2
Jul 22 08:39:42 rpiserver kernel: [204411.205118] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:90:8d:6c:17:13:32:08:00 SRC=192.168.11.5 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=49274 PROTO=2
Jul 22 08:41:32 rpiserver kernel: [204521.997460] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42900 PROTO=2
Jul 22 08:41:35 rpiserver kernel: [204524.661126] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:fc:d8:48:3c:d0:fb:08:00 SRC=192.168.11.60 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=12847 PROTO=2
Jul 22 08:41:35 rpiserver kernel: [204524.661248] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.251 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=5865 PROTO=2
Jul 22 08:41:36 rpiserver kernel: [204525.684204] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:30:52:cb:ae:19:48:08:00 SRC=192.168.11.30 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=12421 PROTO=2
Jul 22 08:41:38 rpiserver kernel: [204527.732057] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:fc:d8:48:3c:d0:fb:08:00 SRC=192.168.11.60 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=38502 PROTO=2
Jul 22 08:41:39 rpiserver kernel: [204529.063259] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:90:8d:6c:17:13:32:08:00 SRC=192.168.11.5 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=27427 PROTO=2
Jul 22 08:43:37 rpiserver kernel: [204647.028671] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42901 PROTO=2
Jul 22 08:43:40 rpiserver kernel: [204649.281249] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:30:52:cb:ae:19:48:08:00 SRC=192.168.11.30 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=12430 PROTO=2
Jul 22 08:43:51 rpiserver kernel: [204660.239290] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.251 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=5866 PROTO=2
Jul 22 08:43:52 rpiserver kernel: [204661.876659] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:f4:f5:d8:b1:4e:26:08:00 SRC=192.168.11.104 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2
Jul 22 08:45:43 rpiserver kernel: [204772.571567] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42902 PROTO=2
Jul 22 08:45:43 rpiserver kernel: [204773.185995] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:00:1b:b1:89:eb:df:08:00 SRC=192.168.11.36 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=30650 PROTO=2
Jul 22 08:47:19 rpiserver kernel: [204868.317446] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:90:8d:6c:17:13:32:08:00 SRC=192.168.11.5 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=17769 PROTO=2
Jul 22 08:47:48 rpiserver kernel: [204897.704972] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42903 PROTO=2
Jul 22 08:47:52 rpiserver kernel: [204901.592912] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:f4:f5:d8:b1:4e:26:08:00 SRC=192.168.11.104 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2
Jul 22 08:47:57 rpiserver kernel: [204906.920830] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:90:8d:6c:17:13:32:08:00 SRC=192.168.11.5 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=35773 PROTO=2
Jul 22 08:48:00 rpiserver kernel: [204909.584370] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:fc:d8:48:46:ce:ec:08:00 SRC=192.168.11.8 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=8008 PROTO=2
Jul 22 08:48:00 rpiserver kernel: [204909.584608] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.251 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=5867 PROTO=2
Jul 22 08:48:00 rpiserver kernel: [204909.788286] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:30:52:cb:ae:19:48:08:00 SRC=192.168.11.30 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=12454 PROTO=2
Jul 22 08:48:07 rpiserver kernel: [204916.239411] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:00:1b:b1:89:eb:df:08:00 SRC=192.168.11.36 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=30670 PROTO=2
Jul 22 08:48:56 rpiserver kernel: [204966.007138] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.251 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=5868 PROTO=2
Jul 22 08:48:56 rpiserver kernel: [204966.007266] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:fc:d8:48:46:ce:ec:08:00 SRC=192.168.11.8 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=50127 PROTO=2
Jul 22 08:49:00 rpiserver kernel: [204970.102163] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:fc:d8:48:46:ce:ec:08:00 SRC=192.168.11.8 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=47133 PROTO=2
Jul 22 08:49:52 rpiserver kernel: [205021.917343] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42904 PROTO=2
Jul 22 08:49:56 rpiserver kernel: [205025.398474] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:f4:f5:d8:b1:4e:26:08:00 SRC=192.168.11.104 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2
Jul 22 08:51:57 rpiserver kernel: [205146.845289] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42905 PROTO=2
Jul 22 08:52:00 rpiserver kernel: [205149.302966] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:b8:27:eb:cf:60:b6:08:00 SRC=192.168.11.140 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2
Jul 22 08:54:02 rpiserver kernel: [205271.773877] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42906 PROTO=2
Jul 22 08:54:02 rpiserver kernel: [205272.183436] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:30:52:cb:ae:19:48:08:00 SRC=192.168.11.30 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=12497 PROTO=2
Jul 22 08:56:08 rpiserver kernel: [205397.316719] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42907 PROTO=2
Jul 22 08:56:08 rpiserver kernel: [205397.726255] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:00:1b:b1:89:eb:df:08:00 SRC=192.168.11.36 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=30705 PROTO=2
Jul 22 08:58:12 rpiserver kernel: [205521.938216] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42908 PROTO=2
Jul 22 08:58:15 rpiserver kernel: [205524.600664] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:b8:27:eb:cf:60:b6:08:00 SRC=192.168.11.140 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2
Jul 22 09:00:01 rpiserver kernel: [205630.281934] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:fc:d8:48:46:ce:ec:08:00 SRC=192.168.11.8 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=29596 PROTO=2
Jul 22 09:00:01 rpiserver kernel: [205630.282828] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.251 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=5869 PROTO=2
Jul 22 09:00:01 rpiserver kernel: [205630.685115] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:fc:d8:48:3c:d0:fb:08:00 SRC=192.168.11.60 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=6762 PROTO=2
Jul 22 09:00:01 rpiserver kernel: [205630.686010] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.251 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=5870 PROTO=2
Jul 22 09:00:01 rpiserver kernel: [205630.686921] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:b8:27:eb:cf:60:b6:08:00 SRC=192.168.11.140 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2
Jul 22 09:00:03 rpiserver kernel: [205632.322631] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:fc:d8:48:46:ce:ec:08:00 SRC=192.168.11.8 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=21906 PROTO=2
Jul 22 09:00:10 rpiserver kernel: [205639.491887] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:fc:d8:48:3c:d0:fb:08:00 SRC=192.168.11.60 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=57480 PROTO=2
Jul 22 09:00:18 rpiserver kernel: [205647.482639] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42909 PROTO=2
Jul 22 09:00:19 rpiserver kernel: [205649.119332] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:b8:27:eb:cf:60:b6:08:00 SRC=192.168.11.140 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2
Jul 22 09:02:23 rpiserver kernel: [205772.512107] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:01:f4:f5:e8:75:2c:91:08:00 SRC=192.168.11.1 DST=224.0.0.1 LEN=28 TOS=0x00 PREC=0xC0 TTL=1 ID=42910 PROTO=2
Jul 22 09:02:25 rpiserver kernel: [205774.764880] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:f4:f5:d8:b1:4e:26:08:00 SRC=192.168.11.104 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2
答え1
それでもこの問題があり、解決したい人がいる場合：
Steeldriverがコメントで正確に指摘したように、これはほとんどのネットワークで発生する一般的なマルチキャストトラフィックであり、おそらくある種の検索サービスが原因でした。また、以下に関する質問にお答えします。
安全であれば、どのように修正したりログに記録されないようにすることができますか？
に示すようにこの投稿、ufw はルールに従って記録しますが、デフォルトでは記録しません。したがって、トラフィックに一致するファイアウォールルールを作成します。
- このトラフィックを明示的に許可します（例：224.0.0.251および224.0.0.1のすべてのトラフィックを許可）。
- または、そのようなトラフィックを明示的に拒否します（例：224.0.0.251および224.0.0.1のすべてのエントリを拒否します）。
答え2
これはカーネルによって生成されたUFWログメッセージです。
システムでは、これらのログを管理するために別の構成ファイルが生成されます。
luvpreet@DHARI-Inspiron-3542:~$ cd /etc/rsyslog.d/
luvpreet@DHARI-Inspiron-3542:/etc/rsyslog.d$ ls | grep ufw
20-ufw.conf
このファイルの内容を確認してください。
luvpreet@DHARI-Inspiron-3542:/etc/rsyslog.d$ cat 20-ufw.conf
# Log kernel generated UFW log messages to file
:msg,contains,"[UFW " /var/log/ufw.log
# Uncomment the following to stop logging anything that matches the last rule.
# Doing this will stop logging kernel generated UFW log messages to the file
# normally containing kern.* messages (eg, /var/log/kern.log)
#& stop
ファイルの名前を変更し、最後に.confを削除します。
luvpreet@DHARI-Inspiron-3542:/etc/rsyslog.d$ sudo mv 20-ufw.conf 20-ufw
次に、rsyslogを再起動します。
luvpreet@DHARI-Inspiron-3542:/etc/rsyslog.d$ sudo service rsyslog restart
これにより、対応するメッセージの記録が停止します。
注 - このファイルが表示されない場合は、:msg,contains,"[UFW " /var/log/ufw.logフォルダ内のすべてのファイルでこの行を検索してください/etc/rsyslog.d。この内容が表示されるたびに、この行にコメントを付けてrsyslogを再起動してください。