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

    Scheduled Pinned Locked Moved Firewalling
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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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