also all paar Minuten kommt etwas
# tcpdump -i eth0 -vv 'ip6 and icmp6 and ip6[40] == 134'
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
12:35:50.732305 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 160) fe80::c225:6ff:fe91:a96a > ff02::1: [icmp6 sum ok] ICMP6, router advertisement, length 160
hop limit 255, Flags [none], pref high, router lifetime 1800s, reachable time 0s, retrans time 0s
prefix info option (3), length 32 (4): dynamic.wline.6rd.res.cust.swisscom.ch/64, Flags [onlink, auto], valid time 7200s, pref. time 3600s
0x0000: 40c0 0000 1c20 0000 0e10 0000 0000 2a02
0x0010: 120b 2c11 f1f1 0000 0000 0000 0000
prefix info option (3), length 32 (4): fd00::/64, Flags [onlink, auto], valid time 7200s, pref. time 3600s
0x0000: 40c0 0000 1c20 0000 0e10 0000 0000 fd00
0x0010: 0000 0000 0000 0000 0000 0000 0000
rdnss option (25), length 24 (3): lifetime 1200s, addr: fd00::c225:6ff:fe91:a96a
0x0000: 0000 0000 04b0 fd00 0000 0000 0000 c225
0x0010: 06ff fe91 a96a
mtu option (5), length 8 (1): 1480
0x0000: 0000 0000 05c8
unknown option (24), length 8 (1):
0x0000: 0008 0000 0708
unknown option (24), length 16 (2):
0x0000: 4008 0000 0708 2a02 120b 2c11 f1f1
unknown option (24), length 16 (2):
0x0000: 4008 0000 0708 fd00 0000 0000 0000
source link-address option (1), length 8 (1): c0:25:06:91:a9:6a
0x0000: c025 0691 a96a
12:35:57.593636 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 64) fe80::6e20:56ff:fec5:cfca > ff02::1: [icmp6 sum ok] ICMP6, router advertisement, length 64
hop limit 64, Flags [managed, other stateful], pref high, router lifetime 3600s, reachable time 0s, retrans time 0s
prefix info option (3), length 32 (4): fc00::/64, Flags [onlink, auto], valid time 86400s, pref. time 14400s
0x0000: 40c0 0001 5180 0000 3840 0000 0000 fc00
0x0010: 0000 0000 0000 0000 0000 0000 0000
mtu option (5), length 8 (1): 1500
0x0000: 0000 0000 05dc
source link-address option (1), length 8 (1): 6c:20:56:c5:cf:ca
0x0000: 6c20 56c5 cfca
12:36:21.578859 IP6 (hlim 255, next-header ICMPv6 (58) payload length: 64) fe80::6e20:56ff:fec5:cfca > ff02::1: [icmp6 sum ok] ICMP6, router advertisement, length 64
hop limit 64, Flags [managed, other stateful], pref high, router lifetime 3600s, reachable time 0s, retrans time 0s
prefix info option (3), length 32 (4): fc00::/64, Flags [onlink, auto], valid time 86400s, pref. time 14400s
0x0000: 40c0 0001 5180 0000 3840 0000 0000 fc00
0x0010: 0000 0000 0000 0000 0000 0000 0000
mtu option (5), length 8 (1): 1500
0x0000: 0000 0000 05dc
source link-address option (1), length 8 (1): 6c:20:56:c5:cf:ca
0x0000: 6c20 56c5 cfca