DESTINATION HOST UNREACHABLE

[Jim Slager]

What is it that causes ping to return DESTINATION HOST UNREACHABLE rather
than the good old Request Timed Out?

 

[Steve Winograd [MVP]]

What is it that causes ping to return DESTINATION HOST UNREACHABLE rather
than the good old Request Timed Out?

DESTINATION HOST UNREACHABLE means that your computer doesn't know how
to send packets to the destination address, because none of the
entries in the route table match the destination. It usually means
that there's a problem with the default route, which uses the default
gateway address to communicate with all IP addresses that aren't on
the local area network.

Request Timed Out means that the computer found a route to the
destination and sent the packets, but that there was no reply.
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

Please post any reply as a follow-up message in the news group
for everyone to see. I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.

Microsoft Most Valuable Professional Program
http://mvp.support.microsoft.com

 

[Jim]

"Request Timed Out" usually means that no host on your
network responded to the ping request, and the ping
program gave it sufficient time to respond. "Destination
Host Unreachable" usually means that a gateway at some
point in your network made a determination that the host
name or IP address you specified did not correspond to an
actual machine on the network.

In other, you got a response, but the gateway is telling
you that nobody's home.

Jim

 

[Danny Slye - [MSFT}]

Destination Host Unreachable


This error message means that no local or remote route does exists for a
destination host, either at the sending host or at a router.
Troubleshoot the
local host or the router's routing table.
--------------------

What is it that causes ping to return DESTINATION HOST UNREACHABLE rather
than the good old Request Timed Out?

__
Danny Slye
Microsoft Support Professional
MCSE

This posting is provided "AS IS" with no warranties and confers no rights.
Please reply to the newsgroup so that others may benefit. Thanks!

 

[Jim Slager]

Thanks Danny, Steve, Jim, and Eric. The problem has gone away after a
reboot. I've had several problems recently where it seems that my WinXP
notebook doesn't get off on the right foot during boot. I'm suspecting that
it is always a matter of not getting the DHCP IP for some reason. Last time
it was Zone Alarm telling me that it had detected a new wireless network
169.254.0.0.

Is there a log file that might tell me what goes on when it doesn't work?

 

[Steve Winograd [MVP]]

Thanks Danny, Steve, Jim, and Eric. The problem has gone away after a
reboot. I've had several problems recently where it seems that my WinXP
notebook doesn't get off on the right foot during boot. I'm suspecting that
it is always a matter of not getting the DHCP IP for some reason. Last time
it was Zone Alarm telling me that it had detected a new wireless network
169.254.0.0.

Is there a log file that might tell me what goes on when it doesn't work?

Click Start | Control Panel | Performance and Maintenance |
Administrative Tools | Event Viewer. For more information, see:

HOW TO: View and Manage Event Logs in Event Viewer in Windows XP
http://support.microsoft.com/?id=308427
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

Please post any reply as a follow-up message in the news group
for everyone to see. I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.

Microsoft Most Valuable Professional Program
http://mvp.support.microsoft.com

 

[Jim Slager]

Click Start | Control Panel | Performance and Maintenance |
Administrative Tools | Event Viewer. For more information, see:

HOW TO: View and Manage Event Logs in Event Viewer in Windows XP
http://support.microsoft.com/?id=308427

Thanks, Steve. I checked the System Log in Event Viewer and discovered a
Warning:

Your computer was not able to renew its address from the network (from the
DHCP Server) for the Network Card with network address 0004237A8228. The
following error occurred:

"The semaphore timeout period has expired. . Your computer will continue to
try and obtain an address on its own from the network address (DHCP)
server."

8 seconds later this Warning occurred:

"Your computer has automatically configured the IP address for the Network
Card with network address 0004237A8228. The IP address being used is
169.254.42.248."

This 169.254.42.248 address has occurred several times over the last few
days. It only happens on my winXP notebook and I think that it has only
happened since I switched from NIS to ZA. But it only happens sometimes.
The next boot was fine. It is happening about half the time now. Any
ideas?






The name "Myworkgroup :1d" could not be registered on the Interface with IP
address 192.168.1.50. The machine with the IP address 192.168.1.53 did not
allow the name to be claimed by this machine.

 

[Mackgm]

-----Original Message-----

it doesn't work?

Click Start | Control Panel | Performance and Maintenance |
Administrative Tools | Event Viewer. For more information, see:

HOW TO: View and Manage Event Logs in Event Viewer in Windows XP
http://support.microsoft.com/?id=308427
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

Please post any reply as a follow-up message in the news group
for everyone to see. I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.

Microsoft Most Valuable Professional Program
http://mvp.support.microsoft.com
.
I get the same message of "Destination Host Unreachable"

when I ping the router. I have tried numerous solutions
but nothing has worked. All the other computers on the
network are having no problems. I have uninstalled the
network drivers, the network card and rebooted several
times.
My problem started when I set the computer up on a network
that did not have a router and I assigned IP addresses so
the computers could talk through the hub I was using.
When I reconnected to the router and removed the manual IP
adresses the computer would not even ping the router. I
have check all the settings and gone over all the
knnowledge base info I can find. I read about resetting
the default gateway but have not found any information on
how to perform this operstion.
What is next???

 

[Jim Slager]

when I ping the router. I have tried numerous solutions
but nothing has worked. All the other computers on the
network are having no problems. I have uninstalled the
network drivers, the network card and rebooted several
times.
My problem started when I set the computer up on a network
that did not have a router and I assigned IP addresses so
the computers could talk through the hub I was using.
When I reconnected to the router and removed the manual IP
adresses the computer would not even ping the router. I
have check all the settings and gone over all the
knnowledge base info I can find. I read about resetting
the default gateway but have not found any information on
how to perform this operstion.
What is next???

Mackgm, I'm no expert but I have learned a few things while suffering what
seems like every problem ever invented over the last couple of months. The
first thing I would do is Start-Run-cmd-ipconfig and see what IP address is
assigned to the pertainent network adapter. If it is totally different than
the other network PCs then you know you're not getting the proper IP
assignment.

Are you wireless? If so then do Start-Setting-Control Panel-Network
Connections and right click the Wireless network connection and click
properties. Then click the Wireless Networks tab and look in the Preferred
networks pane. Do you see the netork that you wish to connect to? If so,
then select it and click properties and see if the Network name (SSID) is
proper. If so check out the Data encryption check box. It should match up
with the other computers. Same for Network Authentication. If none of this
helps keep looking around this area to find something different from the
other computers. You'll find it sooner or later. (Otherwise some real
expert will reply with a better answer.) Good luck!