Итак, делаем обычный UDP-traceroute, получаем маршрут:
u@mydefense:~> traceroute 8.8.8.8
traceroute to 8.8.8.8 (8.8.8.8), 64 hops max, 40 byte packets
1 Dlink-Router.Dlink (10.10.10.1) 0.825 ms 0.766 ms 0.696 ms
2 10.0.0.1 (10.0.0.1) 1.589 ms 1.238 ms 1.072 ms
3 10.0.0.254 (10.0.0.254) 1.587 ms 1.308 ms 1.128 ms
4 ppp78-36-100-1.pppoe.komi.dslavangard.ru (78.36.100.1) 41.604 ms 14.813 ms 10.300 ms
5 ae1-30g.MX960-1-210.nwtelecom.ru (212.48.198.250) 42.993 ms 41.375 ms 41.367 ms
6 bbn.212-48-204-196.nwtelecom.ru (212.48.204.196) 41.007 ms 38.144 ms 41.175 ms
7 bbn.212-48-204-199.nwtelecom.ru (212.48.204.199) 44.597 ms 41.261 ms 40.737 ms
8 188.254.78.81 (188.254.78.81) 52.686 ms 53.700 ms 51.043 ms
9 95.167.91.32 (95.167.91.32) 66.740 ms
95.167.91.34 (95.167.91.34) 64.415 ms
95.167.91.32 (95.167.91.32) 68.092 ms
10 79.133.94.86 (79.133.94.86) 101.770 ms
72.14.215.196 (72.14.215.196) 68.226 ms
79.133.94.86 (79.133.94.86) 107.776 ms
11 216.239.47.149 (216.239.47.149) 54.163 ms
216.239.47.141 (216.239.47.141) 66.796 ms
216.239.47.127 (216.239.47.127) 66.680 ms
12 google-public-dns-a.google.com (8.8.8.8) 53.558 ms 55.428 ms 51.804 ms
Делаем ICMP-traceroute, получаем другой маршрут.
u@mydefense:~> traceroute -I 8.8.8.8
traceroute to 8.8.8.8 (8.8.8.8), 64 hops max, 48 byte packets
1 Dlink-Router.Dlink (10.10.10.1) 1.781 ms 0.804 ms 0.698 ms
2 10.0.0.1 (10.0.0.1) 1.573 ms 1.070 ms 0.896 ms
3 AS21191.severttk.ru (83.69.6.41) 8.628 ms 8.498 ms 10.256 ms
4 skr01.transtelecom.net (217.150.59.254) 21.263 ms 21.415 ms 21.006 ms
5 10.99.135.5 (10.99.135.5) 27.795 ms 27.525 ms 27.966 ms
6 72.14.220.225 (72.14.220.225) 28.964 ms 28.423 ms 28.054 ms
7 216.239.47.141 (216.239.47.141) 27.846 ms 27.880 ms 27.806 ms
8 google-public-dns-a.google.com (8.8.8.8) 27.470 ms 27.487 ms 27.791 ms
В первом случае путь пролегает вроде как через сервера Ростелекома, во втором через ТТК. Почему так происходит?