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Explain PING results Codes

I looked online to find the explanation of the PING results, but could not fine any.
http://www.nthelp.com/icmp.html
I looked on the link above also similar links but it does not explain what each ping result means

for instance: Ping 10.10.10.10
If get Time Out, Destination Host unreachable, etc..etc..
What does each result means ... sometimes it means the host is down, sometimes, the network that the host is on is down but the host is probably up

there are many different results that we can get from Ping

Any link that explains each results what it means ?

Thanks

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Paul Simmons

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arnold

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Don Johnston

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jskfan

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Don,

I have seen that list, but what does each result mean

for instance the most common results of ping are:

Time Out, Destination Host unreachable

in which scenario we can get Time out and in which scenario we get Destination Host unreachable

this is just for 2 scenarios

The list that Don posted has many scenarios ... but there is no link on the internet that explains in which case you get each result listed above by Don

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arnold

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Don Johnston

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jskfan

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There is no Time Out code, but when you ping you can get :
reply Time out OR Destination Host Unreachable, OR you get neither, just the ping fails.

That's what I was looking for, the different results of PING. If there is a link that explains them that would be great.

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arnold

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Don Johnston

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jskfan

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Arnold:

I know that if there is no reply from the host, it means you cannot reach it.
However through the reply message you can tell if the down stream router cannot reach the host, or the host itself is down, or the host does not exist at all.

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arnold

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jskfan

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In my case I am talking about internal network.
sometimes I ping a hostname and there is no response , I believe in that case the hostname is not in DNS
sometimes I ping hostname and it will show the IP address but with time out in replies. Sometime I ping hostname, it show IP address but with Destination host unreachable.

I know the IP address will show up only if reverse lookup zone is configured and PTR exists in the Reverse Lookup zone.

jskfan

ASKER

thank you