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    URGENT HELP libvirt kvm

    Scheduled Pinned Locked Moved Virtualization
    42 Posts 4 Posters 9.1k Views
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    • V
      volga629
      last edited by

      True Agree. I am focusing on issue of BRIDGE0

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      • V
        volga629
        last edited by

        Here are TCP settings. I disabled offload as was recommended, but result the same.

        TCP_Stack.png
        TCP_Stack.png_thumb

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        • V
          volga629
          last edited by

          I was thinking what else can be. I did tcpdump on virtual host him self Fedora Server and still see private IP, which I though on this stage I should see only public ip, because pfsense should apply outbound NAT rules. What else I can check.

          
          [root@dedi132 ~]# tcpdump -i any -vvv -nnnn -s 0 icmp
          16:32:24.378774 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP (1), length 84)
              10.18.130.50 > 8.8.8.8: ICMP echo request, id 40991, seq 641, length 64
          16:32:24.378782 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP (1), length 84)
              10.18.130.50 > 8.8.8.8: ICMP echo request, id 40991, seq 641, length 64
          16:32:24.378900 IP (tos 0x0, ttl 63, id 0, offset 0, flags [DF], proto ICMP (1), length 84)
              10.18.130.50 > 8.8.8.8: ICMP echo request, id 40991, seq 641, length 64
          16:32:24.378909 IP (tos 0x0, ttl 63, id 0, offset 0, flags [DF], proto ICMP (1), length 84)
              10.18.130.50 > 8.8.8.8: ICMP echo request, id 40991, seq 641, length 6
          
          
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          • johnpozJ
            johnpoz LAYER 8 Global Moderator
            last edited by

            "Secondly LAN subnet is directly connected to pfsense it will never show you in packet capture applied NAT rules.  If you sniff traffic on WAN interface and it will be inbound connection then you should see PUBLIC ip's."

            What??

            I assume its wan is 198.50.221.177, pretty sure in fact that is your pfsense since when I hit it I get pfsense login!  That you have webgui allowed on your wan is just another F'd up thing with this setup that is for sure

            why don't you PM me a login and I will take a look directly to what is going on..  What kind of BS setup do you have that devices on the lan side of pfsense would not be natted through pfsense wan??  I can tell you for sure yes you would see natted traffic on the wan and on the lan you would see the non natted traffic.  So as you can see here is me pinging you on the lan interface of pfsense where it shows my private address, and there it is going out the wan with my public IP.  And you can also see pfsense pinging its gateway every 1 second as it does with default apinger running.

            pfsensewanlogin.png
            pfsensewanlogin.png_thumb
            pingyounat.png
            pingyounat.png_thumb

            An intelligent man is sometimes forced to be drunk to spend time with his fools
            If you get confused: Listen to the Music Play
            Please don't Chat/PM me for help, unless mod related
            SG-4860 24.11 | Lab VMs 2.8, 24.11

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            • V
              volga629
              last edited by

              Not sure why it working from WAN, I don't see any rules which will allow the access.

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              • V
                volga629
                last edited by

                Look like firewall is not running. Logs are from Sat 5 midnight. That why you can access it.

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                • V
                  volga629
                  last edited by

                  Check screenshot from PFSense where on tcpdump I am capture traffic on BRIDGE0. Server on LAN is send ping, but nothing coming back. look like firewall not running or something like that.

                  PFSensePing.png
                  PFSensePing.png_thumb

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                  • T
                    thermo
                    last edited by

                    show the same capture but on pfsense WAN (not bridge0)

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                    • V
                      volga629
                      last edited by

                      BRIDGE0 is the WAN

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                      • V
                        volga629
                        last edited by

                        In first my post I have small schema design.

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                        • T
                          thermo
                          last edited by

                          ok, just read the thread again. Your setup looks messed up.
                          no other suggestion apart from restore from backup. :-)

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                          • V
                            volga629
                            last edited by

                            I think it some thing to do with firewall. Logs in web UI is not writing still from midnight Sep 5.

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                            • johnpozJ
                              johnpoz LAYER 8 Global Moderator
                              last edited by

                              well its not pinging now.

                              An intelligent man is sometimes forced to be drunk to spend time with his fools
                              If you get confused: Listen to the Music Play
                              Please don't Chat/PM me for help, unless mod related
                              SG-4860 24.11 | Lab VMs 2.8, 24.11

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                              • V
                                volga629
                                last edited by

                                I shutdown old unit. And in progress of rebuild to new unit. Left restore firewall rules.  Because I need return site online.
                                So far everything works interfaces same setup as before all the same. And don't have idea what happened, I suspect that some thing happened with firewall, because I tried restore form backup.

                                I am still not back online 100% but,

                                I want tell Everyone here HUGE THANK YOU FOR SUPPORT.

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                                • johnpozJ
                                  johnpoz LAYER 8 Global Moderator
                                  last edited by

                                  so now do your ping test with 8.8.8.8 on wan.. Does it show you public or private – there just is no freaking way it could work with private IP and no nat.

                                  An intelligent man is sometimes forced to be drunk to spend time with his fools
                                  If you get confused: Listen to the Music Play
                                  Please don't Chat/PM me for help, unless mod related
                                  SG-4860 24.11 | Lab VMs 2.8, 24.11

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                                  • V
                                    volga629
                                    last edited by

                                    OK I was be able restore firewall and all settings. Site back online 100%. I still be live that on old vm, firewall is broken. On new vm same setup, everything work right now 100%.

                                    Here o new vm when NAT and firewall works. On old one I so on WAN (BRIDGE0) interface private IP which mean something happened with firewall.

                                    Again huge THANK you for help.

                                    
                                    17:07:25.409679 IP 198.50.221.189 > 8.8.8.8: ICMP echo request, id 8256, seq 1, length 64
                                    17:07:25.432903 IP 8.8.8.8 > 198.50.221.189 ICMP echo reply, id 8256, seq 1, length 64
                                    
                                    
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                                    • johnpozJ
                                      johnpoz LAYER 8 Global Moderator
                                      last edited by

                                      there you go so now you have a different wan IP.. but yes that makes sense.. Not what you were seeing before where you seeing on the wan 10.x as source address.

                                      An intelligent man is sometimes forced to be drunk to spend time with his fools
                                      If you get confused: Listen to the Music Play
                                      Please don't Chat/PM me for help, unless mod related
                                      SG-4860 24.11 | Lab VMs 2.8, 24.11

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