Jump to content


 


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.


Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.

Photo

Ping Result Is Destination Host Unreachable


  • Please log in to reply
4 replies to this topic

#1 tlp0605

tlp0605

  • Members
  • 2 posts
  • OFFLINE
  •  
  • Local time:11:51 AM

Posted 04 June 2008 - 10:46 PM

Hi,

I am setting up a network with my company. My company has 2 different offices, office A and B, which are not next to one another. They are about 50metres away. I have some contractors to lay out the lan cables. As I only want to connect the computers in these 2 offices together (not accessing internet), I used a Ethernet Switch and straight cables to connect up the computers. The ethernet switch is located in office A. My computer is also located in office A, together with 2 more other computers. As for office B, there are 4 computers.

After all these are setup, I tried to ping on all the computers. I found that my computer (in office A) is able to ping the other 2 computers in office A but cannot ping any in office B. The error I got is as shown below:

Pinging 172.100.100.15 with 32 bytes of data:
Reply from 172.100.100.9: Destination host unreachable
Reply from 172.100.100.9: Destination host unreachable
Reply from 172.100.100.9: Destination host unreachable

All the computers are running on Windows Vista. The model of the ethernet switch that I am using is Linksys SLM2008

These are the static IPs that I am using, with all subnet mask at 255.255.255.0:
Office A
My computer: 172.100.100.9
Computer 1: 172.100.100.2 (can ping)
Computer 2: 172.100.100.7 (can ping)

Office B (cannot ping any)
Computer 1: 172.100.100.13
Computer 2: 172.100.100.14
Computer 3: 172.100.100.15
Computer 4: 172.100.100.16

I suspect that it could be that the length of the lan cable is more than 100m. But I do not have any equipment to confirm this and to test the strength of the network.

Hope I did not miss out any required information. Could anyone tell me what could be the possible reasons and solutions for this?? It is okay to add in devices (like router if necessary) but I do not want to re-lay the lan cable.

Thank you & Regards
tlp0605

BC AdBot (Login to Remove)

 


#2 nigglesnush85

nigglesnush85

  • Members
  • 4,371 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:UK
  • Local time:03:51 AM

Posted 05 June 2008 - 06:04 AM

Hello,

What firewall(s) are you using? it could be blocking a key port.
Regards,

Alan.

#3 tlp0605

tlp0605
  • Topic Starter

  • Members
  • 2 posts
  • OFFLINE
  •  
  • Local time:11:51 AM

Posted 05 June 2008 - 06:41 AM

My computer is using Windows Firewall and it is already disabled. There are no other additional firewall software on my computer.

#4 nigglesnush85

nigglesnush85

  • Members
  • 4,371 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:UK
  • Local time:03:51 AM

Posted 05 June 2008 - 07:23 AM

has the router/switch been setup correctly? Is it blocking any access?
Regards,

Alan.

#5 Korvak

Korvak

  • Members
  • 11 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Oklahoma
  • Local time:10:51 PM

Posted 11 June 2008 - 04:30 PM

Destination net unreachable means that the ping is coming back on itself because doesn't know where to go.

Are the computers in each office connected to a router or another switch?
Sometimes you have to use a crossover cable when going from one switch to another.
Our deepest fear is not that we are inadequate. Our deepest fear is that we are powerful beyond measure.




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users