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    XenServer Networking

    Scheduled Pinned Locked Moved IT Discussion
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    • Alket_tuxA
      Alket_tux @dafyre
      last edited by

      @dafyre i have another VM in VBOX (Windows) and i cannot ping that. the other VM's that reside in Vbox even xen host i can ping them

      DashrenderD 1 Reply Last reply Reply Quote 0
      • Alket_tuxA
        Alket_tux @Dashrender
        last edited by

        @Dashrender yes on my windows machine, i can ping google, and also i can download iso-s, i've used wget multiple times

        1 Reply Last reply Reply Quote 0
        • DashrenderD
          Dashrender @Alket_tux
          last edited by

          @Alket_tux said in XenServer Networking:

          @dafyre i have another VM in VBOX (Windows) and i cannot ping that. the other VM's that reside in Vbox even xen host i can ping them

          so you have
          (1)Windows desktop (host/physical install)
          (1.1)-----Vbox
          (1.1.1)---------XenServer
          (1.1.1.1)-----------------CentOS
          (1.1.2)---------Windows desktop (VM)

          You said you can ping 1.1.1, but not 1.1.2? is that right?

          Alket_tuxA 3 Replies Last reply Reply Quote 1
          • Alket_tuxA
            Alket_tux @Dashrender
            last edited by

            @Dashrender i have 1.1.3 xubuntu

            1 Reply Last reply Reply Quote 0
            • Alket_tuxA
              Alket_tux @Dashrender
              last edited by

              @Dashrender 1.1.4 smothwall, i can ping all of them,, except 1.1.2....

              travisdh1T 1 Reply Last reply Reply Quote 0
              • travisdh1T
                travisdh1 @Alket_tux
                last edited by

                @Alket_tux Can the xubuntu ping your gateway?

                Alket_tuxA 1 Reply Last reply Reply Quote 0
                • Alket_tuxA
                  Alket_tux @travisdh1
                  last edited by

                  @travisdh1 yes it can ping my gateway

                  travisdh1T 1 Reply Last reply Reply Quote 0
                  • travisdh1T
                    travisdh1 @Alket_tux
                    last edited by

                    @Alket_tux said in XenServer Networking:

                    @travisdh1 yes it can ping my gateway

                    Ok, then it's probably something to do with DNS. What is in the /etc/resolv.conf?

                    JaredBuschJ Alket_tuxA 2 Replies Last reply Reply Quote 0
                    • JaredBuschJ
                      JaredBusch @travisdh1
                      last edited by

                      @travisdh1 said in XenServer Networking:

                      @Alket_tux said in XenServer Networking:

                      @travisdh1 yes it can ping my gateway

                      Ok, then it's probably something to do with DNS. What is in the /etc/resolv.conf?

                      Or he actually said the Gately wrong in this machine. That he can ping it is not relevant it's in the subnet.

                      DashrenderD 1 Reply Last reply Reply Quote 1
                      • DashrenderD
                        Dashrender @JaredBusch
                        last edited by

                        @JaredBusch said in XenServer Networking:

                        @travisdh1 said in XenServer Networking:

                        @Alket_tux said in XenServer Networking:

                        @travisdh1 yes it can ping my gateway

                        Ok, then it's probably something to do with DNS. What is in the /etc/resolv.conf?

                        Or he actually said the Gately wrong in this machine. That he can ping it is not relevant it's in the subnet.

                        I'm not sure what problem we're solving anymore. But the OP mentions the his Windows VM can't ping anything, and nothing can ping it. I would guess that maybe a subnet mask issue or vNIC issue.

                        1 Reply Last reply Reply Quote 0
                        • Alket_tuxA
                          Alket_tux @travisdh1
                          last edited by

                          @travisdh1 this is the output of /etc/resolv.conf
                          search mydomain
                          nameserver 192.168.10.1 (This is my gateway)
                          ~

                          1 Reply Last reply Reply Quote 0
                          • Alket_tuxA
                            Alket_tux @Dashrender
                            last edited by

                            @Dashrender now i can oing 1.1.2.. as i turned down firewall in 1,1,2

                            DashrenderD 1 Reply Last reply Reply Quote 0
                            • DashrenderD
                              Dashrender @Alket_tux
                              last edited by

                              @Alket_tux said in XenServer Networking:

                              @Dashrender now i can oing 1.1.2.. as i turned down firewall in 1,1,2

                              Well that sounds about right. I think the windows firewall by default doesn't allow the machine to be pinged.

                              Is everything working now?

                              Alket_tuxA 1 Reply Last reply Reply Quote 1
                              • Alket_tuxA
                                Alket_tux @Dashrender
                                last edited by

                                @Dashrender nope, i turned off the firewall of windows guest vm, so the guests inside xen are at the same state.. my guess is that vbox does not allow it, and it's all because of nested virtualization...

                                scottalanmillerS 1 Reply Last reply Reply Quote 0
                                • scottalanmillerS
                                  scottalanmiller @Alket_tux
                                  last edited by

                                  @Alket_tux said in XenServer Networking:

                                  @Dashrender nope, i turned off the firewall of windows guest vm, so the guests inside xen are at the same state.. my guess is that vbox does not allow it, and it's all because of nested virtualization...

                                  Did you remember to allow promiscuous mode on VirtualBox? If you miss that nesting will break networking.

                                  Alket_tuxA 1 Reply Last reply Reply Quote 1
                                  • Alket_tuxA
                                    Alket_tux @scottalanmiller
                                    last edited by

                                    @scottalanmiller yes it is on. but now that i tried dhcp it is not getting IP address. but it just says failed nothing else

                                    DashrenderD 1 Reply Last reply Reply Quote 0
                                    • DashrenderD
                                      Dashrender @Alket_tux
                                      last edited by

                                      @Alket_tux said in XenServer Networking:

                                      @scottalanmiller yes it is on. but now that i tried dhcp it is not getting IP address. but it just says failed nothing else

                                      This sounds like a hypervisor setting issue.

                                      1 Reply Last reply Reply Quote 0
                                      • DashrenderD
                                        Dashrender
                                        last edited by

                                        I wonder if my diagram above is wrong..

                                        Is your Windows VM a direct guest of XS or of virtualbox?

                                        Alket_tuxA scottalanmillerS 2 Replies Last reply Reply Quote 0
                                        • Alket_tuxA
                                          Alket_tux @Dashrender
                                          last edited by

                                          @Dashrender windows vm is in vbox, as you cannot create windows vm's in xen nested in vbox because they require HVM mode

                                          1 Reply Last reply Reply Quote 1
                                          • scottalanmillerS
                                            scottalanmiller @Dashrender
                                            last edited by

                                            @Dashrender said in XenServer Networking:

                                            I wonder if my diagram above is wrong..

                                            Is your Windows VM a direct guest of XS or of virtualbox?

                                            Can't be on XS, no HVM possible. VirtualBox does not support nesting.

                                            1 Reply Last reply Reply Quote 0
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