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    XenServer Networking

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    • 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
                    • Alket_tuxA
                      Alket_tux
                      last edited by

                      I managed to get the Centos guest vm inside Xen to get an IP address but still it does not ping google

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

                        @Alket_tux said in XenServer Networking:

                        I managed to get the Centos guest vm inside Xen to get an IP address but still it does not ping google

                        where is it getting it's IP from? from the LAN DHCP server?
                        can the VM ping your default gateway?

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

                          yes it is getting the ip form my LAN DHCP but it cannot ping the default gateway..

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

                            i turned off iptables on both Xen Host and Centos Guest machine,, but no success

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

                              @Dashrender yes it is getting the ip form my LAN DHCP but it cannot ping the default gateway..

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

                                @Alket_tux said in XenServer Networking:

                                @Dashrender yes it is getting the ip form my LAN DHCP but it cannot ping the default gateway..

                                and you confirmed in the DHCP server that the reservation is successful? I know sounds crazy - how could it even make a request to the LAN to get a DHCP address if it can't respond to the DHCP provider that it accepted it? But then if all of that works, then why can't you connect to resources on the the network for which you were provided an IP?

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

                                  @Dashrender it must be the same, as my /etc/resolv.conf is the same in XenServer and in Centos

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

                                    hello guys,
                                    what if i tried to enable second interface in Vbox.. can you give some help to add the second nic to xenbr1.

                                    https://toic.org/blog/2008/multiple-network-interfaces-in-xen/
                                    i read this but i do not have /etc/xen/scripts/network-bridge in xenserver 7

                                    any ideas?

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

                                      Hello guys,

                                      sorry to bother you again,, but i just noticed something:
                                      i have another xenserver host on my VirtualBox
                                      and i can ping this other host from my guest vm inside xen host 1.. meaning:

                                      Vbox = I
                                      xenhost 1 = I.I
                                      centos vm = I.I.I
                                      xen host 2 = I.II
                                      and centos can ping I.I0_1486584964528_flowchart.PNG

                                      here is a picture for better understanding.. thannks

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

                                        What's not working?

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

                                          @Dashrender as you can see from the picture, ping to host is not working 🙂

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

                                            Ping from Xen host 2 isn't working?

                                            Can you show us the networking picture? try rebooting the whole thing, shut down both XenServer 1 and 2, close Virtual Box, reboot PC, try again.

                                            Alket_tuxA 1 Reply Last reply Reply Quote 0
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