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I have made my own test environment and I am having problems with pinging other servers from one server. All servers can ping to domain controllers and they get responded back. When I ping from a server to another server, I get following message "Destination host unreachable." Running Windows Server 2012 R2 all on servers and DCs

They all have static IPs

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    check if the windows firewall disabled (for testing) or allow ICMP Protocol. – scherard Oct 27 '15 at 13:23
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    Do you have this on a different network with a firewall between? – Nixphoe Oct 27 '15 at 13:29
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    "destination host unreachable" sounds more like a routing problem than a firewall problem. – Gerald Schneider Oct 27 '15 at 14:16
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    DIsable firewalls and try again. If that doesn't help can you provide some ipconfig /all output for two systems that can't ping each other? – Ryan Babchishin Oct 27 '15 at 14:21
  • Disabling firewall worked. thanks for the help guys. – bensin88 Oct 27 '15 at 14:35
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Check to make sure all systems are listed properly in DNS. For your DC follow this, or check your install against it.

http://social.technet.microsoft.com/wiki/contents/articles/12370.windows-server-2012-set-up-your-first-domain-controller-step-by-step.aspx

We typically assume that if you don't mention the version of OS your using the most current, if not don't forget to mention the version (2005/2008/2012) you'll get more specific answers that way.

ALSO check your hosts files: C:\windows\system32\drivers\etc\hosts The best way to find this is windows explorer and type the path, the etc folder is typically hidden.

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I infer you're referring to ICMP (IPv4) echo-request, not to its ICMPv6 analogon.

It appears your servers are connected by a node that acts as a gateway in the sense of rfc792:

Destination Unreachable Message

     [...]
    Code
      [...]
      1 = host unreachable;

  [...]

  Codes 0, 1, 4, and 5 may be received from a gateway.  Codes 2 and
  3 may be received from a host.

that cannot (or doesn't) forward the ICMP echo-request.

More in-depth analysis of the issue would require more in-depth information about your network topology.

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