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    Don't show traffic pass through /var/log/filter.log

    Scheduled Pinned Locked Moved Firewalling
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    • M Offline
      monchito
      last edited by

      Hi johnpoz, thanks for reply

      The source of the traffic is behind an MPLS from a service provider. (i think is that you refer about downstream network)

      I don't understand neither about tcpdump and packet capture, maybe packet capture is slow, i don't know.

      I verify the interface, it's listening the right one.

      What another information will be useful ?

      Thanks for help

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      • johnpozJ Offline
        johnpoz LAYER 8 Global Moderator
        last edited by johnpoz

        Well the packet capture used via the gui, is just using tcpdump.. So doesn't make any sense that you would see traffic in tcpdump doing via cli/command line but not seen in packet capture gui.

        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 25.07 | Lab VMs 2.8, 25.07

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        • M Offline
          monchito
          last edited by

          Ok, thanks.

          There is a command to show the packet that are drop, and not passing through the rules?

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          • johnpozJ Offline
            johnpoz LAYER 8 Global Moderator
            last edited by

            Huh? packet capture will show you everything being seen on the interface that meets your criteria set in the capture, IP, port, protocol, etc. Has nothing to do with if rules would pass the traffic or not.

            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 25.07 | Lab VMs 2.8, 25.07

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            • M Offline
              monchito
              last edited by

              johnpoz,

              In GUI (Diagnostics -> Packet Capture) if i capture with filter : 10.13.0.20 , 8.8.8.8 . No output:
              Selección_105.jpg image url)

              But in Cli : tcpdump -ni em0 host 10.13.0.20 get output
              Selección_106.jpg

              But independently of this, and this what i don't understand : **the packet 10.13.0.20 -> 8.8.8.8 : icmp no should match with the "deny" default rule ??? (at least) or "pass" if it match with another rule **

              Thanks

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              • johnpozJ Offline
                johnpoz LAYER 8 Global Moderator
                last edited by

                What are you settings on the gui capture?

                What is this interface em0? Do you have vlans setup on this interface?

                Does the gui capture anything?

                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 25.07 | Lab VMs 2.8, 25.07

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                • M Offline
                  monchito
                  last edited by monchito

                  What are you settings on the gui capture?
                  Selección_107.jpg

                  What is this interface em0? Do you have vlans setup on this interface?

                  em0 (internal), no vlans

                  Does the gui capture anything?

                  yes, capture something similar, for example :

                  fae8ca4c-4a60-4e3e-9ab8-ba1087ccd21a-imagen.png

                  Thanks

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                  • M Offline
                    monchito
                    last edited by

                    @johnpoz,i realize that in gui put the wrong interface:

                    9cdcb5f4-c76d-4c1d-b72d-c1fe84d7c781-imagen.png

                    Now i see on GUI, but still no show "deny" or "pass" traffic on /var/log/filter.log

                    Thanks

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                    • johnpozJ Offline
                      johnpoz LAYER 8 Global Moderator
                      last edited by johnpoz

                      Ok so the traffic is getting there.. And what do you set in logging. By default pass stuff is not logged. If you want passed traffic to be logged you would have enable that.

                      Did you turn off the default deny logging?
                      logoff.png

                      I have it off for example - because I only want to log specific stuff.

                      What are you rules on this interface? Do you have any rules on your floating tab?

                      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 25.07 | Lab VMs 2.8, 25.07

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                      • M Offline
                        monchito
                        last edited by

                        Yes, firewall blocks logs are enabled

                        6603a976-166f-41c5-b8e1-05f36e2a4652-imagen.png

                        We have a lots of rules (floating and not floating), but for this and for diagnostic propose we have a floating rule:

                        8a0fe47c-03c9-4d26-871a-c5238083efad-imagen.png

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                        • johnpozJ Offline
                          johnpoz LAYER 8 Global Moderator
                          last edited by johnpoz

                          Well that rule is not getting any hits. see the 0/0 - do you have quick enabled on it.

                          Is the traffic passing or not passing? Are you natting that, etc..

                          Nobody can really help you point out what you might have configured wrong when you show little tiny snippets of your setup without seeing the whole picture, etc.

                          Do you have quick set on that rule in floating? Do you have the correct interface selected? What other rules do you have above that in floating, what rules do you have on the actual interface, etc.

                          Is this 10.13.0/24 network downstream network? Or is that network directly attached to pfsense? If its downstream did you setup pfsense to nat it? Does pfsense know how to get to it via some other gateway? It could be just sending it out your wan without natting it, or not knowing how to send the traffic back even if there is an answer to it, etc.

                          I take it the actual problem is this 10.13.0.20 is trying to ping 8.8.8.8 and you get no answer? If its a downstream network and your not natting it, then no 10.13.0.20 wouldn't ever get to 8.8.8.8, even if you allowed it.. There are many pieces to this puzzle that are missing - for use to help you figure out what the actual problem is.

                          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 25.07 | Lab VMs 2.8, 25.07

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                          • M Offline
                            monchito
                            last edited by

                            On these policy:

                            2c192778-e862-4407-aabb-16ee7ee3770e-imagen.png

                            On "0/0 B" :

                            037d0f15-f784-49b6-a181-0f33deeef610-imagen.png
                            That's weird, i never use it

                            Yes, the interface on the policy is correct

                            Is this 10.13.0/24 network downstream network? Yes , there are hops to an MPLS, no directly attached, no NAT used by us (asking to ISP ), and pfsense cant reach to it.

                            df14c6e2-3ad0-4f40-af72-626a18810182-imagen.png

                            From 10.13.0.20 -> to 8.8.8.8

                            eb0363d9-43c0-4776-9177-56bb21943b71-imagen.png

                            I take it the actual problem is this 10.13.0.20 is trying to ping 8.8.8.8 and you get no answer?
                            10.13.0.20 no reach 8.8.8.8 because its cut in pfsense

                            Sorry me english and if i'm not clear in something

                            Thanks

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