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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

      You mean you have a downstream network? Why are you hiding rfc1918 address?

      the packet capture is the same as tcpdump - so you saying that is not working while tcpdump does makes no sense at all.

      Unless your listening the wrong interface, or on a vlan or however yours setup need to be in promiscuous mode...

      Some more details of your setup would be helpful in helping you.

      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

        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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