au-sw-03(config)# no gratuitous arp Invalid input: gratuitous Kurt
On Thu, Apr 3, 2014 at 4:08 PM, David McSpadden <[email protected]> wrote: > It's a command. > No gratuitous arp from config t. > It is on by default. > It helped a couple server but I still have issues. > ESXi's knowledgebase is full of these intermittent IPstack issues that they > are blaming on the OS and Physical switches. Kind of curious that the same > physical switch was used in my realtime lab and never had these issues but > now that it is backbone to the ESXi servers it is the problem.... > Lol > > > -----Original Message----- > From: [email protected] [mailto:[email protected]] > On Behalf Of Kurt Buff > Sent: Thursday, April 03, 2014 6:58 PM > To: [email protected] > Subject: Re: [NTSysADM] No communication between VMs on an ESXi host > > 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. 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