Отсутствие ICMP-ответов может также означать, что удалённый узел блокирует ICMP Echo-Reply или игнорирует ICMP Echo-Request.

PING tsa.net.ru (216.8.179.25) 56(84) bytes of data.
64 bytes from ptr-216-8-179-25.ptr.nextdimensioninc.com (216.8.179.25): icmp_req=1 ttl=52 time=98.3 ms
64 bytes from ptr-216-8-179-25.ptr.nextdimensioninc.com (216.8.179.25): icmp_req=2 ttl=52 time=98.2 ms
64 bytes from ptr-216-8-179-25.ptr.nextdimensioninc.com (216.8.179.25): icmp_req=3 ttl=52 time=98.3 ms
64 bytes from ptr-216-8-179-25.ptr.nextdimensioninc.com (216.8.179.25): icmp_req=4 ttl=52 time=98.3 ms
64 bytes from ptr-216-8-179-25.ptr.nextdimensioninc.com (216.8.179.25): icmp_req=5 ttl=52 time=98.3 ms

--- tsa.net.ru ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4000ms
rtt min/avg/max/mdev = 98.273/98.335/98.365/0.201 ms	

Traceroute — это служебная программа, предназначенная для определения маршрутов следования данных в сетях TCP/IP.

traceroute to tsa.net.ru (216.8.179.25), 10 hops max, 60 byte packets
 1  node29.mirahost.biz (176.9.25.7)  0.031 ms  0.017 ms  0.006 ms
 2  hos-tr1-juniper1.rz10.hetzner.de (213.239.244.1)  0.127 ms hos-tr4-juniper2.rz10.hetzner.de (213.239.244.97)  0.150 ms  0.147 ms
 3  hos-bb1.juniper1.ffm.hetzner.de (213.239.240.224)  4.786 ms  4.768 ms  4.781 ms
 4  s10-0-0-23.london2-cr2.bbnplanet.net (195.16.162.69)  5.096 ms  5.106 ms  5.090 ms
 5  vlan60.csw1.Frankfurt1.Level3.net (4.69.154.62)  5.096 ms vlan80.csw3.Frankfurt1.Level3.net (4.69.154.190)  13.316 ms vlan60.csw1.Frankfurt1.Level3.net (4.69.154.62)  6.726 ms
 6  ae-72-72.ebr2.Frankfurt1.Level3.net (4.69.140.21)  5.046 ms ae-82-82.ebr2.Frankfurt1.Level3.net (4.69.140.25)  5.098 ms ae-92-92.ebr2.Frankfurt1.Level3.net (4.69.140.29)  4.996 ms
 7  ae-21-21.ebr2.London1.Level3.net (4.69.148.185)  14.603 ms ae-22-22.ebr2.London1.Level3.net (4.69.148.189)  14.567 ms  14.578 ms
 8  ae-41-41.ebr1.NewYork1.Level3.net (4.69.137.66)  83.401 ms  83.399 ms  83.728 ms
 9  ae-7-7.car2.Detroit1.Level3.net (4.69.133.249)  98.486 ms  98.383 ms  98.388 ms
10  MANAGED-NET.car2.Detroit1.Level3.net (64.152.144.78)  98.683 ms  99.035 ms  99.035 ms

Date: Thu, 24 May 2012 12:12:02 GMT
Server: Apache
Expires: Thu, 29 Oct 1998 17:04:19 GMT
Last-Modified: Thu, 24 May 2012 12:12:02 GMT
Cache-Control: no-store, no-cache, must-revalidate
Cache-Control: post-check=0, pre-check=0
Pragma: no-cache
Set-Cookie: tsa_net_ru=208834206de23c78aa63966b1f33ed86; expires=Tue, 23-May-2017 12:12:02 GMT; path=/
Vary: Accept-Encoding
Content-Type: text/html; charset=UTF-8

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Last updated on 2012.05.24 15:58:53 MSK