А ОС какая? Windows использует ICMP, а вот Linux и IOS (не Apple iOS, а Cisco IOS) используют UDP, с ним вероятность успеха чуть повыше.
jidckii@keikogi~15:13:52:~$ sudo tcpdump -n net 172.16.76.67
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
15:15:10.487711 IP 172.16.76.67 > 5.189.13.127: ICMP echo request, id 4, seq 47908, length 72
15:15:10.487773 IP 5.189.13.127 > 172.16.76.67: ICMP echo reply, id 4, seq 47908, length 72
15:15:10.489075 IP 172.16.76.67 > 5.189.13.127: ICMP echo request, id 4, seq 47909, length 72
15:15:10.489106 IP 5.189.13.127 > 172.16.76.67: ICMP echo reply, id 4, seq 47909, length 72
15:15:10.490609 IP 172.16.76.67 > 5.189.13.127: ICMP echo request, id 4, seq 47910, length 72
15:15:10.490634 IP 5.189.13.127 > 172.16.76.67: ICMP echo reply, id 4, seq 47910, length 72
jidckii@keikogi~14:35:48:~$ traceroute 8.8.8.8
traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 60 byte packets
1 5.189.7.1-FTTB.planeta.tc (5.189.7.1) 0.637 ms 0.419 ms 0.363 ms
2 vl4001.sr06-02.ekb.ru.mirasystem.net (92.242.29.237) 213.940 ms 214.026 ms 213.893 ms
3 google.w-ix.net (193.106.112.21) 29.537 ms 31.409 ms 31.294 ms
4 216.239.47.149 (216.239.47.149) 32.271 ms 33.011 ms 30.574 ms
5 google-public-dns-a.google.com (8.8.8.8) 33.102 ms 30.201 ms 34.139 ms
jidckii@keikogi~14:36:02:~$ sudo tcpdump -n net 8.8.8.8
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
14:36:09.135312 IP 5.189.13.127.44925 > 8.8.8.8.33434: UDP, length 32
14:36:09.135603 IP 5.189.13.127.52440 > 8.8.8.8.33435: UDP, length 32
14:36:09.135750 IP 5.189.13.127.54928 > 8.8.8.8.33436: UDP, length 32
14:36:09.135885 IP 5.189.13.127.33829 > 8.8.8.8.33437: UDP, length 32
14:36:09.136075 IP 5.189.13.127.54742 > 8.8.8.8.33438: UDP, length 32
14:36:09.136232 IP 5.189.13.127.41642 > 8.8.8.8.33439: UDP, length 32
14:36:09.136340 IP 5.189.13.127.34364 > 8.8.8.8.33440: UDP, length 32
14:36:09.136438 IP 5.189.13.127.39560 > 8.8.8.8.33441: UDP, length 32
14:36:09.136577 IP 5.189.13.127.52723 > 8.8.8.8.33442: UDP, length 32
14:36:09.136701 IP 5.189.13.127.44940 > 8.8.8.8.33443: UDP, length 32
14:36:09.136820 IP 5.189.13.127.32936 > 8.8.8.8.33444: UDP, length 32
14:36:09.137020 IP 5.189.13.127.47465 > 8.8.8.8.33445: UDP, length 32
14:36:09.137160 IP 5.189.13.127.48462 > 8.8.8.8.33446: UDP, length 32
14:36:09.137280 IP 5.189.13.127.56283 > 8.8.8.8.33447: UDP, length 32
14:36:09.137405 IP 5.189.13.127.44759 > 8.8.8.8.33448: UDP, length 32
14:36:09.137515 IP 5.189.13.127.59819 > 8.8.8.8.33449: UDP, length 32
14:36:09.140022 IP 5.189.13.127.46011 > 8.8.8.8.33450: UDP, length 32
14:36:09.140237 IP 5.189.13.127.47503 > 8.8.8.8.33451: UDP, length 32
14:36:09.140316 IP 5.189.13.127.56273 > 8.8.8.8.33452: UDP, length 32
14:36:09.165989 IP 5.189.13.127.52915 > 8.8.8.8.33453: UDP, length 32
14:36:09.167463 IP 8.8.8.8 > 5.189.13.127: ICMP 8.8.8.8 udp port 33447 unreachable, length 68
14:36:09.170244 IP 8.8.8.8 > 5.189.13.127: ICMP 8.8.8.8 udp port 33446 unreachable, length 68
14:36:09.170278 IP 8.8.8.8 > 5.189.13.127: ICMP 8.8.8.8 udp port 33450 unreachable, length 68
14:36:09.170327 IP 8.8.8.8 > 5.189.13.127: ICMP 8.8.8.8 udp port 33451 unreachable, length 68
14:36:09.171525 IP 8.8.8.8 > 5.189.13.127: ICMP 8.8.8.8 udp port 33448 unreachable, length 68
14:36:09.172044 IP 8.8.8.8 > 5.189.13.127: ICMP 8.8.8.8 udp port 33449 unreachable, length 68
14:36:09.172071 IP 8.8.8.8 > 5.189.13.127: ICMP 8.8.8.8 udp port 33452 unreachable, length 68
14:36:09.195974 IP 8.8.8.8 > 5.189.13.127: ICMP 8.8.8.8 udp port 33453 unreachable, length 68
jidckii@laptop:~$ ps aux | grep indi
jidckii 2675 0.1 0.1 544088 14280 ? Sl 22:37 0:00 indicator-sensors
jidckii 2998 1.0 0.0 785492 6320 ? Sl 22:37 0:03 /usr/lib/indicator-appmenu/hud-service
jidckii 3013 0.0 0.0 550608 7168 ? Sl 22:37 0:00 /usr/lib/indicator-session/indicator-session-service
jidckii 3015 0.0 0.0 547352 7808 ? Sl 22:37 0:00 /usr/lib/indicator-sound/indicator-sound-service
jidckii 3017 0.0 0.1 433652 11240 ? Sl 22:37 0:00 /usr/lib/indicator-printers/indicator-printers-service
jidckii 3027 0.0 0.1 640612 9236 ? Sl 22:37 0:00 /usr/lib/indicator-datetime/indicator-datetime-service
jidckii 3028 0.6 0.0 889068 5348 ? Sl 22:37 0:02 /usr/lib/indicator-application/indicator-application-service
jidckii 3156 0.0 0.1 433968 11728 ? Sl 22:37 0:00 telepathy-indicator
jidckii@laptop:~$ ps aux | grep uni
jidckii 2963 4.6 0.2 634492 20736 ? Sl 22:48 0:04 /usr/lib/unity/unity-panel-service
jidckii 3119 0.3 0.1 426060 14796 ? Sl 22:48 0:00 /usr/lib/unity-lens-applications/unity-applications-daemon
jidckii 3124 0.0 0.1 482132 8528 ? Sl 22:48 0:00 /usr/lib/unity-lens-music/unity-music-daemon
jidckii 3125 0.0 0.0 552620 6760 ? Sl 22:48 0:00 /usr/lib/unity-lens-files/unity-files-daemon
jidckii 3127 0.2 0.1 570396 12960 ? Sl 22:48 0:00 /usr/bin/python /usr/lib/unity-lens-utilities/unity-lens-utilities
jidckii 3129 0.2 0.1 585536 15980 ? Sl 22:48 0:00 /usr/bin/python /usr/lib/unity-lens-video/unity-lens-video
jidckii 3214 0.0 0.0 587796 4812 ? Sl 22:48 0:00 /usr/lib/unity-lens-music/unity-musicstore-daemon
jidckii 3225 0.3 0.2 571440 21820 ? Sl 22:48 0:00 /usr/bin/python /usr/lib/unity-scope-video-remote/unity-scope-video-remote
jidckii 3227 0.1 0.1 484436 13256 ? Sl 22:48 0:00 /usr/bin/python /usr/lib/unity-scope-calculator/unity-scope-calculator
jidckii 3229 0.2 0.1 374636 15652 ? Sl 22:48 0:00 /usr/bin/python /usr/lib/unity-scope-cities/unity-scope-cities
jidckii@laptop:~$ ps aux | grep app
jidckii 2626 0.0 0.1 539144 13672 ? Sl 22:47 0:00 bluetooth-applet
jidckii 2628 1.1 0.3 1007180 31012 ? Sl 22:47 0:02 nm-applet
jidckii 2965 1.6 0.0 588892 6268 ? Sl 22:48 0:02 /usr/lib/indicator-appmenu/hud-service
jidckii 2988 0.7 0.0 692372 5076 ? Sl 22:48 0:01 /usr/lib/indicator-application/indicator-application-service
jidckii 3119 0.1 0.1 426060 14796 ? Sl 22:48 0:00 /usr/lib/unity-lens-applications/unity-applications-daemon
jidckii@laptop:~$ sensors
coretemp-isa-0000
Adapter: ISA adapter
Physical id 0: +61.0°C (high = +87.0°C, crit = +105.0°C)
Core 0: +61.0°C (high = +87.0°C, crit = +105.0°C)
Core 1: +58.0°C (high = +87.0°C, crit = +105.0°C)
Видимо у меня в голове не укладывалось, что сетевой протокол может работать внутри сетевого протокола.
Спасибо, что поправили.