Server Red Hat and error message Destination Host Unreachab

  • zillah
  • Student
  • Student
  • zillah
  • Posts: 77

Post 3+ Months Ago

The Linux server Red Hat that I have got in my lab is giving me this error :

((Destination Host Unreachable.....))

Its NIC is up, and IP, Subnet Mask, Default Gateway is fine, the Cisco switch where it connected is configured correctly, but neither any one can ping this Red Hat Server nor it can ping any one on the same network.

Switch shows green light , that means physical connection (NIC, cable) should be ok.

I even added the default router under the properties of NIC on Red
Hat didn't make any difference.

If I unplugged the server and plugged my laptop instead, they can ping each other (switch and other PCs and laptop)

1- Beside the firewall (enabling and disabling) that I have to check

2- Can I uninstall TCP/IP and reinstall it again (If that feasible like windows)?
  • Dave White
  • Beginner
  • Beginner
  • Dave White
  • Posts: 38

Post 3+ Months Ago

You have to add the route in you ur Redhat Machine.

route -n
and Add the route by using the cmd
route add -net default gw eth0

If you are using static IPs then you can simply add the IP and hostnames to /etc/hosts
  • this213
  • Guru
  • Guru
  • User avatar
  • Posts: 1258
  • Loc: ./

Post 3+ Months Ago

This sounds like a DNS issue. Check out your /etc/resolv.conf to ensure you have the right nameservers there. Try pinging something by name that you know is up (like, then try pinging it by it's IP address and see what happens.

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