Request time out

 vinoth -

pls I want to know the difference between the ping error:

Request time and Destination unreachable?

2 replies

Registration date
Saturday August 16, 2008
Last seen
September 22, 2012
ok here what u want hope it hel[ps u understand it better

Destination host unreachable: The host that you are trying to ping is down or is not operating on the network.


Request timed out: The ping command timed out because there was no reply from the host. Ping your local address This will tell you that TCP is functioning. It does not tell you that your network card is functioning. Ping your default gateway or next hop Router. This will show that the router is up. Ping beyond the next hop Router. If the ping fails, the request timed out can mean that the destination host is down or that there is no route back to you. Destination Net Unreachable will show the IP address of the Router that tried to route the packet but did not have a valid route.

As you can see, there is a big difference between "destination host unreachable" and "request timed out." This is particularly noticeable in Windows Vista, where ping's error messages have been tuned to be more specifically accurate. As such, a bad response in Vista has a tendency to get a different answer than the usual Windows XP "request timed out."

any further queries n comments
pls reply

Melisio Mascarenhas
Thank you

A few words of thanks would be greatly appreciated. Add comment

CCM 2821 users have said thank you to us this month

thanks I think your explanation was very clear and excellent. I am ok with it now. thanks
> Afari
when I scan our all pc then 3-4 hour work the network clear .after these time returne I see problem our network .some time ping reply some time request time out . we use kaspersky antivirous.what kind of anti virous we can use to remove virous permanantly .when I scan all pc then find kdo.exe virous in this situstion our all pc are slow .

Here wen I am trying to ping my internet GW getting replay but wen pinging URL getting destination host unreachable but internet working.

In some cases getting request time out wen I am pinging internet GW but at the same time getting destination host unreachable wen pining URL.

pls help me to get clear.


Registration date
Tuesday November 18, 2008
Last seen
February 2, 2010
I don't think there's a difference as request time out, I think the server took too long to respond and destination unreachable, I think the server is down. In both case the server is out.