10 Replies Latest reply on Nov 3, 2014 8:36 AM by tim781996

    Unable to add host in VC

    ajesha008 Novice

      Hi,

       

      I've installed ESX 4.0,  in  DMZ net work.

       

      When I tried to add this server in Virtual center I get  "Request timed"  out error, but Im able to manage this server using vSphere client  and able to connect using Putty.

       

      Im able to telnet 903 from VC server also from where I installed vSphere client.

       

      any help would be highly appreciated.

       

      Thanks,

      Ajesh

        • 1. Re: Unable to add host in VC
          Maximenu Hot Shot
          vExpert

          Try with 902 port and 443

           

           

          Update

           

           

          22. ssh access to service console.

          80. HTTP access to web servers.

          443. HTTPS SSL access to web servers for VI Web Access.

          902. VI Client access to ESX Server or VirtualCenter, and communication between VirtualCenter and ESX Server hosts or between hosts.

          903. VM Console access via VI Client or VI Web Access.

          2049. Connection to NFS storage devices.

          2050-5000, and 8042-8045. Traffic between ESX Server hosts for VMware HA (also utilizes EMC Automated Availability Manager).

          3260. Connection to iSCSI storage devices.

          8000. Incoming requests from VMotion.

          8083. VirtualCenter diagnostics port.

          8086. Apache Tomcat web server admin on VirtualCenter Server

          27000. License transactions from ESX Server to the License Server.

          27010. License transactions from the License Server.

           






          Javier Galvez

           

          VCP 2/3/4

          MCTS Hyper-V and SCVMM

          CCA XenServer

          CCA XenDesktop

          • 2. Re: Unable to add host in VC
            ajesha008 Novice

            i tried 902 and 443  both are open.

            • 3. Re: Unable to add host in VC
              a.p. Guru
              Community WarriorsUser ModeratorsvExpert

              What about the DNS configuration? Can the host resolve the FQDN of vCenter Server and vice versa.

               

              André

              • 4. Re: Unable to add host in VC
                ajesha008 Novice

                yes it does name resolution.

                • 5. Re: Unable to add host in VC
                  techsuresh Enthusiast

                  Hi,

                   

                  Have it connected to vCenter before?  Since vCenter is a Windows server with a different IP address, it might be on a different LAN segment or VLAN.  Are there any firewalls between the ESX SCs and vCenter?  It sounds like there might a networking or firewall issue there.  When you connect to an ESX box directly with VI client, you are just connecting from your VI workstation to the ESX SC.  When you connect hosts to vCenter, then vCenter is trying to communicate with the SC of the ESX boxes, so the networking is totally different.  Can you check the networking and firewalls between the ESX host in question and vCenter? 

                   

                  http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1002721

                   

                   

                   

                  Good Luck

                   

                   

                   

                  if you found this post helpful please consider the use of the Helpful/Correct buttons to award points

                   

                   

                   

                   

                   

                   

                  Suresh

                  • 6. Re: Unable to add host in VC
                    ajesha008 Novice

                    Thank you for your reply..

                    I had this server earlier in the Vcenter , it was ESX 3.5, and I upgraded to 4.0  after that im unable to add to vcenter.

                    Thanks,

                    Ajesh

                    • 7. Re: Unable to add host in VC
                      techsuresh Enthusiast

                      now try to diconnect and remove the host from inventory and connect it again. your problem will be solved. this was happened to me few days back. i did like this.

                       

                       

                       

                       

                       

                      if you found this post helpful please consider the use of the Helpful/Correct buttons to award points

                       

                       

                       

                      Suresh

                      • 8. Re: Unable to add host in VC
                        jcwuerfl Hot Shot

                        Is there security concern for putting the whole ESX host in the DMZ vs. just adding a DMZ uplink port for your VM's ?

                         

                        What version of vCenter do you have running?  I think you said your ESX hosts were 4.0, so you must have at least version 4.0 for vCenter

                         

                        Do you see any errors besides a Timeout error ?   have you looked in the vCenter logs or in the ESX Logs at all?

                         

                        If its in the DMZ there are actually 2 firewall's you need to check to make sure the ports are open.  1) is the ESX firewall, 2) is your Network Firewall  telneting to each of the ports from your vCenter server is a pretty good indication its open or not.

                         

                        TCP and UDP Ports required to access vCenter Server, ESX hosts, and other network components:

                        http://kb.vmware.com/kb/1012382

                         

                        From above article:

                        ESX 4.x 47 UDP ESX/ESXi Host Physical Switches vDS (Virtual Distributed Switch) Broadcast

                        ESX 4.x 902 TCP VI/vSphere Client ESX/ESXi Host VI/vSphere Client to ESX/ESXi hosted VM connectivity

                        ESX 4.x 902 TCP/UDP ESX/ESXi Host ESX/ESXi Host Authentication, Provisioning, VM Migration

                        ESX 4.x 902 UDP ESX/ESXi Host vCenter 4 Server Heartbeat

                        ESX 4.x 903 TCP VI/vSphere Client ESX/ESXi Host VM Remote VM Console

                        ESX 4.x 2050 to 2250 UDP ESX/ESXi Host ESX/ESXi Host VMware HA

                        ESX 4.x 5989 TCP ESX/ESXi Host VirtualCenter/vCenter CIM Secure Server to CIM Client

                        ESX 4.x 8000 TCP ESX/ESXi Host (VM Target) ESX/ESXi Host (VM Source) VMotion Communication on VMKernel Interface

                        ESX 4.x 8000 TCP ESX/ESXi Host (VM Source) ESX/ESXi Host (VM Target) VMotion Communication on VMKernel Interface

                        ESX 4.x 8042 to 8045 TCP ESX/ESXi Host ESX/ESXi Host VMware HA

                        ESX 4.x 8100 TCP/UDP ESX/ESXi 4 Host ESX/ESXi 4.x Host VMware Fault Tolerance. ESX/ESXi 4 only.

                        ESX 4.x 8200 TCP/UDP ESX/ESXi 4 Host ESX/ESXi 4.x Host VMware Fault Tolerance. ESX/ESXi 4 only.

                         

                        443/902/903 seems to be the key ports you need to make sure that is open.

                         

                        This PDF also does a great job of visualizing all of the communications that happens from various components:

                        http://www.virtualinsanity.com/wp-content/uploads/connections-ports-esx.pdf

                         

                        If those ports are open, and you still can't add it to vCenter then it could be another issue.  You can always take it out of the DMZ put it on a local subnet to the vCenter server and try it again and see if it does work in that case so you know if it is a network/firewall issue or something else.

                        • 9. Re: Unable to add host in VC
                          caledfwlch Novice

                          How many NIC do you have in that host, make sure that in the host console, both NIC are checked (connected).  I hope this helps.

                          • 10. Re: Unable to add host in VC
                            tim781996 Lurker

                            I had a similar problem this morning. VC lost its connection to two of my hosts after I moved some redundant network connections to redundant switches. I migrated the VC from one host to another, and I was able to get it to see the missing hosts again. Bottom line: see if you can rule out possible faulty paths when you encounter this issue, especially when you can't find an answer in the KB and restarting services & rebuilding files doesn't help.