root@RUTX11:~# tcpdump -i any -n -v 'icmp6'
tcpdump: listening on any, link-type LINUX_SLL (Linux cooked v1), capture size 262144 bytes
02:00:45.475582 IP6 (flowlabel 0x7a94b, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:9b1:dfc:a500::1 > 2001:6b0:19::165: [icmp6 sum ok] ICMP6, echo request, seq 0
02:00:46.310043 IP6 (flowlabel 0xaa3d2, hlim 64, next-header ICMPv6 (58) payload length: 116) ::1 > ::1: [icmp6 sum ok] ICMP6, destination unreachable, unreachable port, ::1 udp port 33780
02:00:46.475904 IP6 (flowlabel 0x7a94b, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:9b1:dfc:a500::1 > 2001:6b0:19::165: [icmp6 sum ok] ICMP6, echo request, seq 1
02:00:47.476229 IP6 (flowlabel 0x7a94b, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:9b1:dfc:a500::1 > 2001:6b0:19::165: [icmp6 sum ok] ICMP6, echo request, seq 2
02:00:48.476534 IP6 (flowlabel 0x7a94b, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:9b1:dfc:a500::1 > 2001:6b0:19::165: [icmp6 sum ok] ICMP6, echo request, seq 3
02:00:49.476866 IP6 (flowlabel 0x7a94b, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:9b1:dfc:a500::1 > 2001:6b0:19::165: [icmp6 sum ok] ICMP6, echo request, seq 4
02:00:50.477185 IP6 (flowlabel 0x7a94b, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:9b1:dfc:a500::1 > 2001:6b0:19::165: [icmp6 sum ok] ICMP6, echo request, seq 5
02:00:51.477519 IP6 (flowlabel 0x7a94b, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:9b1:dfc:a500::1 > 2001:6b0:19::165: [icmp6 sum ok] ICMP6, echo request, seq 6
02:00:51.948014 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) :: > ff02::1:ff60:c853: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has fe80::ba27:ebff:fe60:c853
unknown option (14), length 8 (1):
0x0000: c674 b151 2abe
02:00:51.948014 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) :: > ff02::1:ff60:c853: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has fe80::ba27:ebff:fe60:c853
unknown option (14), length 8 (1):
0x0000: c674 b151 2abe
root@RUTX11:~# tcpdump -i eth1 -n -v 'icmp6'
tcpdump: listening on eth1, link-type EN10MB (Ethernet), capture size 262144 bytes
02:08:47.375798 IP6 (flowlabel 0x7a94b, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:9b1:dfc:a500::1 > 2001:6b0:19::165: [icmp6 sum ok] ICMP6, echo request, seq 0
02:08:48.376101 IP6 (flowlabel 0x7a94b, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:9b1:dfc:a500::1 > 2001:6b0:19::165: [icmp6 sum ok] ICMP6, echo request, seq 1
02:08:49.376423 IP6 (flowlabel 0x7a94b, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:9b1:dfc:a500::1 > 2001:6b0:19::165: [icmp6 sum ok] ICMP6, echo request, seq 2
02:08:50.376760 IP6 (flowlabel 0x7a94b, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:9b1:dfc:a500::1 > 2001:6b0:19::165: [icmp6 sum ok] ICMP6, echo request, seq 3
02:08:51.377132 IP6 (flowlabel 0x7a94b, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:9b1:dfc:a500::1 > 2001:6b0:19::165: [icmp6 sum ok] ICMP6, echo request, seq 4
02:08:52.377456 IP6 (flowlabel 0x7a94b, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:9b1:dfc:a500::1 > 2001:6b0:19::165: [icmp6 sum ok] ICMP6, echo request, seq 5
02:08:53.377761 IP6 (flowlabel 0x7a94b, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:9b1:dfc:a500::1 > 2001:6b0:19::165: [icmp6 sum ok] ICMP6, echo request, seq 6
02:08:54.378066 IP6 (flowlabel 0x7a94b, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:9b1:dfc:a500::1 > 2001:6b0:19::165: [icmp6 sum ok] ICMP6, echo request, seq 7
02:08:54.402591 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 32) fe80::21e:42ff:fe35:9623 > fe80::a67b:2cff:fe9e:ea01: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has fe80::a67b:2cff:fe9e:ea01
source link-address option (1), length 8 (1): 00:1e:42:35:96:23
02:08:54.404794 IP6 (class 0xc0, hlim 255, next-header ICMPv6 (58) payload length: 32) fe80::a67b:2cff:fe9e:ea01 > fe80::21e:42ff:fe35:9623: [icmp6 sum ok] ICMP6, neighbor advertisement, length 32, tgt is fe80::a67b:2cff:fe9e:ea01, Flags [router, solicited, override]
destination link-address option (2), length 8 (1): 00:00:5e:00:01:6b
02:08:55.378369 IP6 (flowlabel 0x7a94b, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:9b1:dfc:a500::1 > 2001:6b0:19::165: [icmp6 sum ok] ICMP6, echo request, seq 8
02:08:56.378655 IP6 (flowlabel 0x7a94b, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:9b1:dfc:a500::1 > 2001:6b0:19::165: [icmp6 sum ok] ICMP6, echo request, seq 9
02:08:57.378955 IP6 (flowlabel 0x7a94b, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:9b1:dfc:a500::1 > 2001:6b0:19::165: [icmp6 sum ok] ICMP6, echo request, seq 10
02:08:58.379420 IP6 (flowlabel 0x7a94b, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:9b1:dfc:a500::1 > 2001:6b0:19::165: [icmp6 sum ok] ICMP6, echo request, seq 11
02:08:59.379771 IP6 (flowlabel 0x7a94b, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:9b1:dfc:a500::1 > 2001:6b0:19::165: [icmp6 sum ok] ICMP6, echo request, seq 12
02:09:00.380057 IP6 (flowlabel 0x7a94b, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:9b1:dfc:a500::1 > 2001:6b0:19::165: [icmp6 sum ok] ICMP6, echo request, seq 13
02:09:01.380358 IP6 (flowlabel 0x7a94b, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:9b1:dfc:a500::1 > 2001:6b0:19::165: [icmp6 sum ok] ICMP6, echo request, seq 14
02:09:02.380668 IP6 (flowlabel 0x7a94b, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:9b1:dfc:a500::1 > 2001:6b0:19::165: [icmp6 sum ok] ICMP6, echo request, seq 15
02:09:03.380988 IP6 (flowlabel 0x7a94b, hlim 64, next-header ICMPv6 (58) payload length: 64) 2001:9b1:dfc:a500::1 > 2001:6b0:19::165: [icmp6 sum ok] ICMP6, echo request, seq 16
^C
19 packets captured
19 packets received by filter
0 packets dropped by kernel