I'm not finding any settings on the switch to manipulate gratuitous arp. Kurt
On Thu, Apr 3, 2014 at 2:29 PM, David McSpadden <[email protected]> wrote: > On your switch configs did you set gratuitous arps to no? > Suggested by ESX support and knowledgebase. > > > -----Original Message----- > From: [email protected] [mailto:[email protected]] > On Behalf Of John Cook > Sent: Thursday, April 03, 2014 5:17 PM > To: [email protected] > Subject: RE: [NTSysADM] No communication between VMs on an ESXi host > > Well we do it for our SAN traffic, no reason it wouldn't work on guests. > > John W. Cook > Director of Network Operations > Partnership For Strong Families > 5950 NW 1st Place > Gainesville, Fl 32607 > Office (352) 244-1610 > Cell (352) 215-6944 > > MCSE, MCP+I, MCTS, > CompTIA A+, N+, Security + > VSP4, VTSP4 > > -----Original Message----- > From: [email protected] [mailto:[email protected]] > On Behalf Of Kurt Buff > Sent: Thursday, April 3, 2014 4:59 PM > To: [email protected] > Subject: Re: [NTSysADM] No communication between VMs on an ESXi host > > Which would mean multihoming the VMs, correct? I don't think that's the right > approach here... > > Kurt > > On Thu, Apr 3, 2014 at 1:50 PM, John Cook <[email protected]> wrote: >> Add another virtual switch with a private range for communication between >> servers? >> >> John W. Cook >> Director of Network Operations >> Partnership For Strong Families >> 5950 NW 1st Place >> Gainesville, Fl 32607 >> Office (352) 244-1610 >> Cell (352) 215-6944 >> >> MCSE, MCP+I, MCTS, >> CompTIA A+, N+, Security + >> VSP4, VTSP4 >> >> -----Original Message----- >> From: [email protected] >> [mailto:[email protected]] On Behalf Of Kurt Buff >> Sent: Thursday, April 3, 2014 4:44 PM >> To: [email protected] >> Subject: Re: [NTSysADM] No communication between VMs on an ESXi host >> >> Sorry, forgot to add - only one VLAN on this switch, and the physical switch >> ports are tagged to this VLAN, and of course all of the VMs are on this >> VLAN, and are using the VMX NET 3 NIC. >> >> 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 >>> >>> >> >> >> >> ________________________________ >> >> CONFIDENTIALITY STATEMENT: The information transmitted, or contained or >> attached to or with this Notice is intended only for the person or entity to >> which it is addressed and may contain Protected Health Information (PHI), >> confidential and/or privileged material. Any review, transmission, >> dissemination, or other use of, and taking any action in reliance upon this >> information by persons or entities other than the intended recipient without >> the express written consent of the sender are prohibited. This information >> may be protected by the Health Insurance Portability and Accountability Act >> of 1996 (HIPAA), and other Federal and Florida laws. 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