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How does ping works ?

+5 votes
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Can someone please explain the process/steps involve in the ping.

posted Oct 26, 2013 by Vikram Singh

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1 Answer

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Ping is basically the command used in networking to check whether the two systems are
connected or not. it sends an ICMP (Internet control message protocol) echo request signal to an interface on the network and in the response it expects to receive an echo ICMP reply. So, by doing this it checks the connectivity .

ICMP is a protocol which is used for internet working layer of TCP/IP and it relies on IP for transport across the network.

Please check this link. It might be useful for you.
http://www.itmindia.edu/images/ITM/pdf/How%20Does%20Ping%20work.pdf

answer Oct 27, 2013 by Ganesh Kumar
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I observed few websites do not respond to ping while few of them such as google.com responds.
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+2 votes

My host ip is: 192.168.1.110 with on a /24 subnet The router has two interfaces 192.168.1.1/24 (eth0) and 10.1.0.1/24 (eth1) The remote machine has two interfaces 10.1.0.11/24 (eth0) and 10.2.0.11/24 (eth1) The routing table for the remote machine is: Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 10.2.0.1 0.0.0.0 UG 0 0 0 eth0 10.1.0.0 0.0.0.0 255.255.255.0 U 1000 0 0 eth1 What might be the problem and why? How could I correct it by only modifying the remote machine?

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