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ptkrisada

tcpdump -e during ping6 success and failure

ptkrisada
Jun 11th, 2023 (edited)
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  1. /***********
  2. * Success *
  3. ***********/
  4.  
  5. % ping6 -c 3 www.netbsd.org
  6. PING6(56=40+8+8 bytes) fd17:625c:f037:2:6b39:c50d:203:a7b --> 2a04:4e42:69::262
  7. 16 bytes from 2a04:4e42:69::262, icmp_seq=0 hlim=57 time=9.052 ms
  8. 16 bytes from 2a04:4e42:69::262, icmp_seq=1 hlim=57 time=9.990 ms
  9. 16 bytes from 2a04:4e42:69::262, icmp_seq=2 hlim=57 time=10.306 ms
  10.  
  11. --- dualstack.o.ssl.global.fastly.net ping6 statistics ---
  12. 3 packets transmitted, 3 packets received, 0.0% packet loss
  13. %
  14. %
  15. %
  16. % sudo tcpdump -i wm0 -s 0 -vvv -n -e
  17. Password:
  18. tcpdump: listening on wm0, link-type EN10MB (Ethernet), capture size 262144 bytes
  19. 02:47:57.635615 08:00:27:91:48:7d > 52:54:00:12:35:00, ethertype IPv4 (0x0800), length 74: (tos 0x0, ttl 64, id 29300, offset 0, flags [none], proto UDP (17), length 60)
  20. 10.0.2.15.65534 > 115.178.58.10.53: [udp sum ok] 37913+ AAAA? www.netbsd.org. (32)
  21. 02:47:57.646759 52:54:00:12:35:00 > 08:00:27:91:48:7d, ethertype IPv4 (0x0800), length 149: (tos 0x0, ttl 255, id 1, offset 0, flags [none], proto UDP (17), length 135)
  22. 115.178.58.10.53 > 10.0.2.15.65534: [udp sum ok] 37913 q: AAAA? www.netbsd.org. 2/0/0 www.netbsd.org. [4m39s] CNAME dualstack.o.ssl.global.fastly.net., dualstack.o.ssl.global.fastly.net. [30s] AAAA 2a04:4e42:69::262 (107)
  23. 02:47:57.649862 08:00:27:91:48:7d > 52:54:00:12:35:00, ethertype IPv6 (0x86dd), length 70: (hlim 64, next-header ICMPv6 (58) payload length: 16) fd17:625c:f037:2:6b39:c50d:203:a7b > 2a04:4e42:69::262: [icmp6 sum ok] ICMP6, echo request, seq 0
  24. 02:47:57.657170 52:54:00:12:35:00 > 08:00:27:91:48:7d, ethertype IPv6 (0x86dd), length 70: (class 0xff, hlim 57, next-header ICMPv6 (58) payload length: 16) 2a04:4e42:69::262 > fd17:625c:f037:2:6b39:c50d:203:a7b: [icmp6 sum ok] ICMP6, echo reply, seq 0
  25. 02:47:58.665156 08:00:27:91:48:7d > 52:54:00:12:35:00, ethertype IPv6 (0x86dd), length 70: (hlim 64, next-header ICMPv6 (58) payload length: 16) fd17:625c:f037:2:6b39:c50d:203:a7b > 2a04:4e42:69::262: [icmp6 sum ok] ICMP6, echo request, seq 1
  26. 02:47:58.674402 52:54:00:12:35:00 > 08:00:27:91:48:7d, ethertype IPv6 (0x86dd), length 70: (class 0xff, hlim 57, next-header ICMPv6 (58) payload length: 16) 2a04:4e42:69::262 > fd17:625c:f037:2:6b39:c50d:203:a7b: [icmp6 sum ok] ICMP6, echo reply, seq 1
  27. 02:47:59.678636 08:00:27:91:48:7d > 52:54:00:12:35:00, ethertype IPv6 (0x86dd), length 70: (hlim 64, next-header ICMPv6 (58) payload length: 16) fd17:625c:f037:2:6b39:c50d:203:a7b > 2a04:4e42:69::262: [icmp6 sum ok] ICMP6, echo request, seq 2
  28. 02:47:59.687902 52:54:00:12:35:00 > 08:00:27:91:48:7d, ethertype IPv6 (0x86dd), length 70: (class 0xff, hlim 57, next-header ICMPv6 (58) payload length: 16) 2a04:4e42:69::262 > fd17:625c:f037:2:6b39:c50d:203:a7b: [icmp6 sum ok] ICMP6, echo reply, seq 2
  29. ^C
  30. 8 packets captured
  31. 8 packets received by filter
  32. 0 packets dropped by kernel
  33. %
  34. %
  35. %
  36. /***********
  37. * Failure *
  38. ***********/
  39. % ping6 -c 3 www.freebsd.org
  40. PING6(56=40+8+8 bytes) fd17:625c:f037:2:6b39:c50d:203:a7b --> 2404:a8:3ff::50:3
  41.  
  42. --- web.geo.freebsd.org ping6 statistics ---
  43. 3 packets transmitted, 0 packets received, 100.0% packet loss
  44. %
  45. %
  46. %
  47. % sudo tcpdump -i wm0 -s 0 -vvv -n -e
  48. tcpdump: listening on wm0, link-type EN10MB (Ethernet), capture size 262144 bytes
  49. 02:53:43.519946 08:00:27:91:48:7d > 52:54:00:12:35:00, ethertype IPv4 (0x0800), length 75: (tos 0x0, ttl 64, id 57300, offset 0, flags [none], proto UDP (17), length 61)
  50. 10.0.2.15.65529 > 115.178.58.10.53: [udp sum ok] 51131+ AAAA? www.freebsd.org. (33)
  51. 02:53:43.608640 52:54:00:12:35:00 > 08:00:27:91:48:7d, ethertype IPv4 (0x0800), length 136: (tos 0x0, ttl 255, id 6, offset 0, flags [none], proto UDP (17), length 122)
  52. 115.178.58.10.53 > 10.0.2.15.65529: [udp sum ok] 51131 q: AAAA? www.freebsd.org. 2/0/0 www.freebsd.org. [10s] CNAME web.geo.freebsd.org., web.geo.freebsd.org. [1m8s] AAAA 2404:a8:3ff::50:3 (94)
  53. 02:53:43.611097 08:00:27:91:48:7d > 52:54:00:12:35:00, ethertype IPv6 (0x86dd), length 70: (hlim 64, next-header ICMPv6 (58) payload length: 16) fd17:625c:f037:2:6b39:c50d:203:a7b > 2404:a8:3ff::50:3: [icmp6 sum ok] ICMP6, echo request, seq 0
  54. 02:53:43.612680 52:54:00:12:35:00 > 08:00:27:91:48:7d, ethertype IPv6 (0x86dd), length 110: (hlim 255, next-header ICMPv6 (58) payload length: 56) fd17:625c:f037:2::1 > fd17:625c:f037:2:6b39:c50d:203:a7b: [icmp6 sum ok] ICMP6, destination unreachable, unreachable route 2404:a8:3ff::50:3
  55. 02:53:44.632692 08:00:27:91:48:7d > 52:54:00:12:35:00, ethertype IPv6 (0x86dd), length 70: (hlim 64, next-header ICMPv6 (58) payload length: 16) fd17:625c:f037:2:6b39:c50d:203:a7b > 2404:a8:3ff::50:3: [icmp6 sum ok] ICMP6, echo request, seq 1
  56. 02:53:44.633478 52:54:00:12:35:00 > 08:00:27:91:48:7d, ethertype IPv6 (0x86dd), length 110: (hlim 255, next-header ICMPv6 (58) payload length: 56) fd17:625c:f037:2::1 > fd17:625c:f037:2:6b39:c50d:203:a7b: [icmp6 sum ok] ICMP6, destination unreachable, unreachable route 2404:a8:3ff::50:3
  57. 02:53:45.635384 08:00:27:91:48:7d > 52:54:00:12:35:00, ethertype IPv6 (0x86dd), length 70: (hlim 64, next-header ICMPv6 (58) payload length: 16) fd17:625c:f037:2:6b39:c50d:203:a7b > 2404:a8:3ff::50:3: [icmp6 sum ok] ICMP6, echo request, seq 2
  58. 02:53:45.636242 52:54:00:12:35:00 > 08:00:27:91:48:7d, ethertype IPv6 (0x86dd), length 110: (hlim 255, next-header ICMPv6 (58) payload length: 56) fd17:625c:f037:2::1 > fd17:625c:f037:2:6b39:c50d:203:a7b: [icmp6 sum ok] ICMP6, destination unreachable, unreachable route 2404:a8:3ff::50:3
  59. 02:53:49.480082 52:54:00:12:35:00 > 08:00:27:91:48:7d, ethertype IPv6 (0x86dd), length 86: (hlim 255, next-header ICMPv6 (58) payload length: 32) fe80::5054:ff:fe12:3500 > fd17:625c:f037:2:6b39:c50d:203:a7b: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has fd17:625c:f037:2:6b39:c50d:203:a7b
  60. source link-address option (1), length 8 (1): 52:54:00:12:35:00
  61. 0x0000: 5254 0012 3500
  62. 02:53:49.480980 08:00:27:91:48:7d > 52:54:00:12:35:00, ethertype IPv6 (0x86dd), length 78: (hlim 255, next-header ICMPv6 (58) payload length: 24) fe80::6091:46c9:731b:c857 > fe80::5054:ff:fe12:3500: [icmp6 sum ok] ICMP6, neighbor advertisement, length 24, tgt is fd17:625c:f037:2:6b39:c50d:203:a7b, Flags [solicited]
  63. 02:53:49.694715 08:00:27:91:48:7d > 52:54:00:12:35:00, ethertype IPv6 (0x86dd), length 86: (hlim 255, next-header ICMPv6 (58) payload length: 32) fe80::6091:46c9:731b:c857 > fe80::5054:ff:fe12:3500: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has fe80::5054:ff:fe12:3500
  64. source link-address option (1), length 8 (1): 08:00:27:91:48:7d
  65. 0x0000: 0800 2791 487d
  66. 02:53:49.696606 52:54:00:12:35:00 > 08:00:27:91:48:7d, ethertype IPv6 (0x86dd), length 86: (hlim 255, next-header ICMPv6 (58) payload length: 32) fe80::5054:ff:fe12:3500 > fe80::6091:46c9:731b:c857: [icmp6 sum ok] ICMP6, neighbor advertisement, length 32, tgt is fe80::5054:ff:fe12:3500, Flags [router, solicited, override]
  67. destination link-address option (2), length 8 (1): 52:54:00:12:35:00
  68. 0x0000: 5254 0012 3500
  69. 02:53:55.552369 52:54:00:12:35:00 > 08:00:27:91:48:7d, ethertype IPv6 (0x86dd), length 86: (hlim 255, next-header ICMPv6 (58) payload length: 32) fe80::5054:ff:fe12:3500 > fe80::6091:46c9:731b:c857: [icmp6 sum ok] ICMP6, neighbor solicitation, length 32, who has fe80::6091:46c9:731b:c857
  70. source link-address option (1), length 8 (1): 52:54:00:12:35:00
  71. 0x0000: 5254 0012 3500
  72. 02:53:55.553150 08:00:27:91:48:7d > 52:54:00:12:35:00, ethertype IPv6 (0x86dd), length 78: (hlim 255, next-header ICMPv6 (58) payload length: 24) fe80::6091:46c9:731b:c857 > fe80::5054:ff:fe12:3500: [icmp6 sum ok] ICMP6, neighbor advertisement, length 24, tgt is fe80::6091:46c9:731b:c857, Flags [solicited]
  73. ^C
  74. 14 packets captured
  75. 14 packets received by filter
  76. 0 packets dropped by kernel
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