Remove the trunking on the switch ports that your uplinks are connected to.
________________________________________ From: [email protected] [[email protected]] On Behalf Of Kurt Buff [[email protected]] Sent: Thursday, April 03, 2014 6:44 PM To: [email protected] Subject: Re: [NTSysADM] No communication between VMs on an ESXi host They're trunked... Kurt On Thu, Apr 3, 2014 at 4:16 PM, Sean Martin <[email protected]> wrote: > If you're uplinks aren't trunked, don't specify the VLAN ID within the port > group settings. Try leaving the VLAN type set to none. > > > On Thu, Apr 3, 2014 at 12:39 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 >> >> >
