$ sudo tcpdump -i l2tp1891
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on l2tp1891, link-type EN10MB (Ethernet), capture size 262144 bytes
15:43:38.599194 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28465, seq 2, length 64
15:43:38.950359 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (1036) hello nh router-id update update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update
15:43:39.599416 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28465, seq 3, length 64
15:43:40.599601 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28465, seq 4, length 64
15:43:43.593353 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (8) hello
15:43:46.623565 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28469, seq 0, length 64
15:43:47.243241 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (44) hello nh router-id update
15:43:47.623248 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28469, seq 1, length 64
15:43:48.623311 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28469, seq 2, length 64
15:43:49.623662 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28469, seq 3, length 64
15:43:50.623847 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28469, seq 4, length 64
15:43:50.972547 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (8) hello
15:43:51.626976 ARP, Request who-has 100.64.0.42 tell [NODE_IP], length 28
15:43:51.626994 ARP, Reply 100.64.0.42 is-at 42:be:fd:21:aa:f3 (oui Unknown), length 28
15:43:54.540600 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (1036) hello nh router-id update update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update
15:43:56.151704 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (36) nh router-id update
15:43:56.648487 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28473, seq 0, length 64
15:43:57.648669 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28473, seq 1, length 64
15:43:58.648762 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28473, seq 2, length 64
15:43:59.648534 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28473, seq 3, length 64
15:44:00.122766 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (8) hello
15:44:00.649220 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28473, seq 4, length 64
15:44:04.215760 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (64) hello nh router-id update mh-request
15:44:04.615490 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (36) nh router-id update
15:44:04.804730 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (484) nh router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update
15:44:04.889312 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (120) nh router-id update router-id update router-id update router-id update
15:44:05.651313 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (64) nh router-id update router-id update
15:44:05.772023 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (64) nh router-id update router-id update
15:44:05.959972 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (64) nh router-id update router-id update
15:44:06.138786 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (64) nh router-id update router-id update
15:44:06.215827 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (72) nh router-id update mh-request update
15:44:06.406346 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (36) nh router-id update
15:44:06.672407 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28477, seq 0, length 64
15:44:07.157248 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (92) nh router-id update router-id update router-id update
15:44:07.672679 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28477, seq 1, length 64
15:44:08.212837 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (56) nh router-id update mh-request
15:44:08.465188 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (36) nh router-id update
15:44:08.672883 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28477, seq 2, length 64
15:44:09.673162 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28477, seq 3, length 64
15:44:09.681911 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (8) hello
15:44:10.673136 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28477, seq 4, length 64
15:44:12.213837 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (1084) hello nh router-id update update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update mh-request router-id update
15:44:12.408191 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (36) nh router-id update
15:44:14.675117 ARP, Request who-has 100.64.0.42 tell [NODE_IP], length 28
15:44:14.675134 ARP, Reply 100.64.0.42 is-at 42:be:fd:21:aa:f3 (oui Unknown), length 28
15:44:16.698598 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28481, seq 0, length 64
15:44:17.188152 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (8) hello
15:44:17.698303 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28481, seq 1, length 64
15:44:18.699155 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28481, seq 2, length 64
15:44:19.699091 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28481, seq 3, length 64
15:44:20.510176 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (36) nh router-id update
15:44:20.699115 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28481, seq 4, length 64
15:44:21.914228 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (8) hello
15:44:22.163655 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (1028) nh router-id update update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update
15:44:24.793347 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (8) hello
15:44:26.725914 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28485, seq 0, length 64
15:44:26.820571 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (36) nh router-id update
15:44:27.726228 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28485, seq 1, length 64
15:44:28.173434 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (36) nh router-id update
15:44:28.726762 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28485, seq 2, length 64
15:44:28.989443 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (44) hello nh router-id update
15:44:29.726041 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28485, seq 3, length 64
15:44:30.726879 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28485, seq 4, length 64
15:44:33.167460 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (8) hello
15:44:33.710054 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (36) nh router-id update
15:44:36.752496 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28489, seq 0, length 64
15:44:37.671660 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (1036) hello nh router-id update update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update
15:44:37.753294 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28489, seq 1, length 64
15:44:38.752712 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28489, seq 2, length 64
15:44:39.753213 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28489, seq 3, length 64
15:44:40.753465 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28489, seq 4, length 64
15:44:41.751897 ARP, Request who-has 100.64.0.42 tell [NODE_IP], length 28
15:44:41.751915 ARP, Reply 100.64.0.42 is-at 42:be:fd:21:aa:f3 (oui Unknown), length 28
15:44:41.793683 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (8) hello
15:44:44.998814 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (8) hello
15:44:46.778058 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28493, seq 0, length 64
15:44:47.778875 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28493, seq 1, length 64
15:44:48.778860 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28493, seq 2, length 64
15:44:49.552886 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (8) hello
15:44:49.778869 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28493, seq 3, length 64
15:44:50.781113 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28493, seq 4, length 64
15:44:52.388035 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (512) nh router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update
15:44:52.558376 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (36) nh router-id update
15:44:53.081988 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (1028) nh router-id update update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update
15:44:53.331570 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (92) nh router-id update router-id update router-id update
15:44:53.458719 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (36) nh router-id update
15:44:53.585117 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (100) hello nh router-id update router-id update router-id update
15:44:53.724521 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (36) nh router-id update
15:44:54.089160 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (56) nh router-id update mh-request
15:44:54.410035 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (64) nh router-id update router-id update
15:44:56.185308 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (56) mh-request nh router-id update
15:44:56.804770 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28497, seq 0, length 64
15:44:57.804335 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28497, seq 1, length 64
15:44:58.173326 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (56) mh-request nh router-id update
15:44:58.804504 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28497, seq 2, length 64
15:44:59.681206 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (8) hello
15:44:59.804693 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28497, seq 3, length 64
15:45:00.805011 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28497, seq 4, length 64
15:45:02.186220 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (56) mh-request nh router-id update
15:45:03.464315 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (8) hello
15:45:04.809710 ARP, Request who-has 100.64.0.42 tell [NODE_IP], length 28
15:45:04.809729 ARP, Reply 100.64.0.42 is-at 42:be:fd:21:aa:f3 (oui Unknown), length 28
15:45:06.830746 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28501, seq 0, length 64
15:45:07.716387 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (44) hello nh router-id update
15:45:07.831224 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28501, seq 1, length 64
15:45:08.831969 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28501, seq 2, length 64
15:45:09.831935 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28501, seq 3, length 64
15:45:10.831693 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28501, seq 4, length 64
15:45:10.953469 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (8) hello
15:45:12.991022 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (1036) hello nh router-id update update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update
15:45:13.133330 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (36) nh router-id update
15:45:16.855590 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28505, seq 0, length 64
15:45:17.385792 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (8) hello
15:45:17.855898 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28505, seq 1, length 64
15:45:18.855951 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28505, seq 2, length 64
15:45:19.292159 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (36) nh router-id update
15:45:19.855605 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28505, seq 3, length 64
15:45:20.856144 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28505, seq 4, length 64
15:45:20.950568 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (44) hello nh router-id update
15:45:25.243963 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (8) hello
15:45:26.879593 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28509, seq 0, length 64
15:45:27.880246 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28509, seq 1, length 64
15:45:28.880509 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28509, seq 2, length 64
15:45:29.861144 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (8) hello
15:45:29.880651 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28509, seq 3, length 64
15:45:30.880039 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28509, seq 4, length 64
15:45:31.886556 ARP, Request who-has 100.64.0.42 tell [NODE_IP], length 28
15:45:31.886574 ARP, Reply 100.64.0.42 is-at 42:be:fd:21:aa:f3 (oui Unknown), length 28
15:45:34.057181 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (1036) hello nh router-id update update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update
15:45:36.904176 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28513, seq 0, length 64
15:45:37.904173 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28513, seq 1, length 64
15:45:38.143218 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (28) hello mh-request
15:45:38.904253 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28513, seq 2, length 64
15:45:39.522828 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (540) nh router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update
15:45:39.684929 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (64) nh router-id update router-id update
15:45:39.904647 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28513, seq 3, length 64
15:45:39.938471 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (56) nh router-id update mh-request
15:45:40.193848 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (64) nh router-id update router-id update
15:45:40.339128 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (36) nh router-id update
15:45:40.433809 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (36) nh router-id update
15:45:40.576665 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (44) hello nh router-id update
15:45:40.769440 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (120) nh router-id update router-id update router-id update router-id update
15:45:40.904246 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28513, seq 4, length 64
15:45:41.423691 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (36) nh router-id update
15:45:41.608669 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (64) nh router-id update router-id update
15:45:41.940716 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (72) nh router-id update mh-request update
15:45:42.154589 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (36) nh router-id update
15:45:42.255764 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (36) nh router-id update
15:45:43.940532 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (72) nh router-id update mh-request update
15:45:44.158280 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (44) hello nh router-id update
15:45:44.828909 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (36) nh router-id update
15:45:46.929946 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28517, seq 0, length 64
15:45:47.929441 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28517, seq 1, length 64
15:45:47.941567 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (72) nh router-id update mh-request update
15:45:48.180992 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (44) hello nh router-id update
15:45:48.929869 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28517, seq 2, length 64
15:45:49.929305 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28517, seq 3, length 64
15:45:50.930367 IP [NODE_IP] > 100.64.0.42: ICMP echo request, id 28517, seq 4, length 64
15:45:52.650790 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (1036) hello nh router-id update update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update router-id update
15:45:54.796004 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (36) nh router-id update
15:45:54.935127 ARP, Request who-has 100.64.0.42 tell [NODE_IP], length 28
15:45:54.935143 ARP, Reply 100.64.0.42 is-at 42:be:fd:21:aa:f3 (oui Unknown), length 28
15:45:57.676205 IP6 fe80::40be:fdff:fe21:aaf3.6696 > ff02::1:6.6696: babel 2 (44) hello nh router-id update
tcpdump: pcap_loop: The interface went down
163 packets captured
163 packets received by filter
0 packets dropped by kernel