UPDATE: I win! Well, it feels just a small bit like victory, anyway.
I spent about 4 hours on a support call with VMware, and have stumped the techs. They've collected logs, and are going to call me on Monday. Heh. Kurt On Thu, Apr 3, 2014 at 1:39 PM, Kurt Buff <[email protected]> wrote: > 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
