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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

      Because it hit bridge0 interface and Outbound NAT is not applied and connection Outbound from LAN to WAN that why it show private ip. 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.

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      • V
        volga629
        last edited by

        How does that sniff make sense??  You can see pings from public ip to public IP working - sourced from a 10.x to public IP 8.8.8.8 not working..

        That exactly what I am says Bridge0 interface not working !!!!!!!!!!!!!!! PFSense not FORWARDING TRAFFIC FROM PRIVATE SUBNET LAN TO PUBLIC INTERNET

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        • V
          volga629
          last edited by

          By The way Snort fail to start. I just updated to last package. Here the log for Snort start up.

          
          Sep 5 17:34:41	php-fpm[62471]: /snort/snort_interfaces.php: The command '/usr/pbi/snort-amd64/bin/snort -R 64956 -D -q --suppress-config-log -l /var/log/snort/snort_bridge064956 --pid-path /var/run --nolock-pidfile -G 64956 -c /usr/pbi/snort-amd64/etc/snort/snort_64956_bridge0/snort.conf -i bridge0' returned exit code '1', the output was ''
          Sep 5 13:34:41	snort[40294]: FATAL ERROR: pf.conf => Table snort2c does not exist in packet filter: Invalid argument
          Sep 5 17:34:41	php-fpm[62471]: /snort/snort_interfaces.php: [Snort] Snort START for WAN_PR01(bridge0)...
          Sep 5 17:34:41	php-fpm[62471]: /snort/snort_interfaces.php: [Snort] Building new sid-msg.map file for WAN_PR01...
          Sep 5 17:34:41	php-fpm[62471]: /snort/snort_interfaces.php: [Snort] Enabling any flowbit-required rules for: WAN_PR01...
          Sep 5 17:34:38	php-fpm[62471]: /snort/snort_interfaces.php: [Snort] Updating rules configuration for: WAN_PR01 ...
          Sep 5 17:34:38	php-fpm[62471]: /snort/snort_interfaces.php: Toggle (snort starting) for WAN_PR01(bridge0)...
          Sep 5 17:34:38	
          
          
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          • D
            doktornotor Banned
            last edited by

            Dude, when you don't have absolutely basic shit working, why are you mesing with Snort? (Totally OT here in addition.)

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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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