Here some examples of captured packets are shown, perhaps useful for your own debugging...
15:43:49.484751 fe80::212:34ff:fe12:3450 > ff02::1: icmp6: router
¼ advertisement(chlim=64, router_ltime=30, reachable_time=0,
¼ retrans_time=0)(prefix info: AR valid_ltime=30, preffered_ltime=20,
¼ prefix=2002:0102:0304:1::/64)(prefix info: LAR valid_ltime=2592000,
¼ preffered_ltime=604800, prefix=3ffe:ffff:0:1::/64)(src lladdr:
¼ 0:12:34:12:34:50) (len 88, hlim 255)
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15:44:21.152646 fe80::212:34ff:fe12:3456 > ff02::2: icmp6: router solicitation
¼ (src lladdr: 0:12:34:12:34:56) (len 16, hlim 255)
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15:44:17.712338 :: > ff02::1:ff12:3456: icmp6: neighbor sol: who has
¼ fe80::212:34ff:fe12:3456(src lladdr: 0:12:34:12:34:56) (len 32, hlim 255)
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15:44:21.905596 :: > ff02::1:ff12:3456: icmp6: neighbor sol: who has
¼ 2002:0102:0304:1:212:34ff:fe12:3456(src lladdr: 0:12:34:12:34:56) (len 32,
¼ hlim 255)
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15:44:22.304028 :: > ff02::1:ff12:3456: icmp6: neighbor sol: who has
¼ 3ffe:ffff:0:1:212:34ff:fe12:3456(src lladdr: 0:12:34:12:34:56) (len 32, hlim
¼ 255)
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13:07:47.664538 2002:0102:0304:1:2e0:18ff:fe90:9205 > ff02::1:ff00:10: icmp6:
¼ neighbor sol: who has 3ffe:ffff:0:1::10(src lladdr: 0:e0:18:90:92:5) (len 32,
¼ hlim 255)
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13:11:20.870070 fe80::2e0:18ff:fe90:9205 > ff02::1:ff00:10: icmp6: neighbor
¼ sol: who has fe80::10(src lladdr: 0:e0:18:90:92:5) (len 32, hlim 255)
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