Do you notice if those are getting the Microsoft auto configuration ip addresses of 169...
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Kurt Buff Sent: Thursday, April 03, 2014 4:40 PM To: [email protected] Subject: [NTSysADM] No communication between VMs on an ESXi host All, My search-fu is failing, so I turn to you for help... I have a small ESXi 5.5 host, about to go into production. The three VMs (2008R2 for all of them, a DC, Exchange 2010 and a PRTG box) on it can communicate with machines not on the ESXi host - ping, RDP, etc. - and vice versa. No problems. However, the three VMs on this host cannot talk with each other. No ping, no RDP. When pinging from one of the VMs to another, I get a mix of unreachables from the VMs own address and straight timeouts. There is only one vSwitch, which has two NICs bound to it, and the vswitch is set up to route based on IP hash. The physical switch to which they are connect (and this shouldn't matter, but...) is an HP 2510G-48, and the ports for the host are in a simple trunk - no LACP. I've turned off the Domain profile of the firewall on one of the machine, which seems to make no difference. I've examined the VMware host security settings to no avail. I've turned off the Windows firewall. I've got 3 ESXi hosts in a vSphere Standard cluster that doesn't have this problem. Kurt This e-mail and any files transmitted with it are property of Indiana Members Credit Union, are confidential, and are intended solely for the use of the individual or entity to whom this e-mail is addressed. If you are not one of the named recipient(s) or otherwise have reason to believe that you have received this message in error, please notify the sender and delete this message immediately from your computer. Any other use, retention, dissemination, forwarding, printing, or copying of this email is strictly prohibited. Please consider the environment before printing this email.
