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I am setting up a few servers for a conference at a hotel. They have setup a separate VLAN for me and gave me 3 static IP's and a DHCP pool of 500.

The issue I have is that the two servers can not ping each other.

Server-1 has
Server-2 has

From both servers I can ping the gateway (at or any computer using DHCP.
A DHCP using computer can ping both servers.

I have been screwing around with the ifcfg-eth0 file lots and trying various things but can not for the life of me figure it out. I'm more of a systems engineer than an admin and not amazing with the IT side. What can I do to trouble shoot this?

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Just to clarify: From both servers you could ping another machine in the same subnet. And, from another machine in the same subnet, you could ping both servers correct? – Belmin Fernandez Feb 23 '13 at 18:10

Go through the process step-by-step and see where it fails. Does the machine you run ping on get an ARP reply? Does it send the ICMP ping? Does the other machine receive it? Does it send a reply?

My guess would be that the problem is a software firewall setting in one of the machines.

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No firewall running on either machine at all. – Danny Feb 23 '13 at 2:03
Yup. I can ping both servers no issues from a DHCP client such as my laptop. – Danny Feb 23 '13 at 2:07
I got a third static IP and made my Win laptop that static IP and I could ping both the other static IPs... The servers were also both able to ping my Win laptop with the static IP – Danny Feb 23 '13 at 2:07
Sanity check. You have a pool of 500. What is the netmask they gave you? /23 ? (aka ? – Hennes Feb 23 '13 at 2:08
Yup /23 and is what I'm using on both servers. – Danny Feb 23 '13 at 2:10

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