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    VLAN an Firewall rule not matching

    Scheduled Pinned Locked Moved L2/Switching/VLANs
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    • I
      interessierter @johnpoz
      last edited by

      @johnpoz Yes maybe I m lost.

      The main network is 192.168.1.0/24, the VLAN 10.40.23.99/24

      The Client (mobile phone) is connected with a Access Point, the SSID is tagged with 4000, the switch have a configuration as hybrid port, and the tags 1000,2000,3000,4000,1 is configured. Than the switch connect to pfsense with the same config.

      As I can see the allow of the connection from the 10.40.23/24 network to 192.168.1.0/24 in the pfsense log I guess, that the routing must be happening here and not before.

      Here a post again of my port forwardings, that also does not contain any network that is in question here:

      5ffcf102-4dae-41cd-9203-c0b332ff5bfb-image.png

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      • johnpozJ
        johnpoz LAYER 8 Global Moderator @interessierter
        last edited by johnpoz

        @interessierter said in VLAN an Firewall rule not matching:

        As I can see the allow of the connection from the 10.40.23/24 network to 192.168.1.0/24 in the pfsense log I guess

        where?

        Here?

        hits.jpg

        The allowed there is because the traffic was generated by pfsense.. There are rules that let the firewall go where it wants..

        [21.05.2-RELEASE][admin@sg4860.local.lan]/root: pfctl -sr | grep "let out"
        pass out inet all flags S/SA keep state allow-opts label "let out anything IPv4 from firewall host itself"
        pass out inet6 all flags S/SA keep state allow-opts label "let out anything IPv6 from firewall host itself"
        

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        • I
          interessierter @johnpoz
          last edited by

          @johnpoz Yes but to be honest I don t know what rule that should be? How does such a rule look like?

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          • johnpozJ
            johnpoz LAYER 8 Global Moderator @interessierter
            last edited by johnpoz

            @interessierter I just showed you what the rule looks like ;)

            Its a hidden rule.

            You can view all the rules via
            https://docs.netgate.com/pfsense/en/latest/firewall/pf-ruleset.html

            There are a few hidden rules, mostly to keep users from shooting themselves in the foot ;) Common example of these is when you enable dhcp server on an interface, rules are created (hidden) that make sure dhcp will work.

            notice those rules are pass "out" rules, which is why you see the little black triangle on the firewall entry.

            What I would look into is why your rule is not triggering? Do you still show 0/0 for the states on your block 192_netz rule? You could look in your tables under the diagnotic menu to make sure that table is showing your 192.168.1/24 network.

            Possible your rules have not be loaded?

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            • I
              interessierter @johnpoz
              last edited by

              @johnpoz My rules are definitly saved and loaded, the tables show this:

              daf36c8f-70cf-42ce-9988-cfcc659fe35e-image.png

              Yes it s still zero

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              • johnpozJ
                johnpoz LAYER 8 Global Moderator @interessierter
                last edited by johnpoz

                @interessierter that is not the 192_netz table..

                Also why are you natting a 172.168.1.0? that is a typo? without a mask?

                See here is my rfc1918 alias table I created entries

                rfctable.jpg

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                • I
                  interessierter @johnpoz
                  last edited by interessierter

                  @johnpoz I dont know but I guess it will not solve the issue right?

                  I have for my main network right now 192.168.1.0/24
                  vlan 10.10.23.99/24
                  vlan2 10.20.23.99/24
                  vlan3 10.30.23.99/24
                  vlan4 10.40.23.99/24
                  vlan5 10.45.23.99/24

                  My 192 Netz only contains 192.168.1.0/24, because I want to block requests to this network

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                  • johnpozJ
                    johnpoz LAYER 8 Global Moderator @interessierter
                    last edited by

                    @interessierter I get that.. But your not showing that the table actually loaded.

                    And your rule is not triggering from the 0/0 in the states column.. Why its not is the question.. Maybe the table didn't load? Maybe your client isn't going through pfsense?

                    I don't see any other rules above it that would allow the traffic..

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                    If you get confused: Listen to the Music Play
                    Please don't Chat/PM me for help, unless mod related
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                    • I
                      interessierter @johnpoz
                      last edited by johnpoz

                      @johnpoz What table you want to see?

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                      • johnpozJ
                        johnpoz LAYER 8 Global Moderator @interessierter
                        last edited by johnpoz

                        @interessierter

                        The table alias you created the 192_netz table.

                        What version of pfsense are you running exactly? There was some issues in the dev versions the other day where state tables not counting.. and all showing 0/0

                        Alias tables normally do not populate until used in a rule.. But lets make sure the alias you created actually created the table and put in the 192.168.1.0/24 network.

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                        • I
                          interessierter @johnpoz
                          last edited by

                          @johnpoz ab1daade-50fd-4118-95d1-c1eb6bf9d130-image.png

                          4657009e-f1ba-4677-8691-308db19293a2-image.png

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                          • johnpozJ
                            johnpoz LAYER 8 Global Moderator @interessierter
                            last edited by johnpoz

                            @interessierter dude that is not the actual TABLE that is created from the alias..

                            Go to the diagnostic menu, pick tables then select your 192_netz table.. Does it list this network, do you see the table in the table drop down?

                            See my above example showing my rfc1918 table created from my rfc1918 alias.

                            What I am trying to verify is this

                            verify.jpg

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                            • I
                              interessierter @johnpoz
                              last edited by

                              @johnpoz said in VLAN an Firewall rule not matching:

                              @interessierter dude that is not the actual TABLE that is created from the alias..

                              Go to the diagnostic menu, pick tables then select your 192_netz table.. Does it list this network, do you see the table in the table drop down?

                              See my above example showing my rfc1918 table created from my rfc1918 alias.

                              What I am trying to verify is this

                              verify.jpg

                              Sorry do you mean here? If yes, the 192_Netz is not here:
                              79112fab-f15f-4383-bac2-73354be3a301-image.png

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                              • johnpozJ
                                johnpoz LAYER 8 Global Moderator @interessierter
                                last edited by

                                @interessierter well if you do not see your table populated, then that would explain why that rule is not working.

                                As I highlighted, tables that you create with an alias are not populated until they are put into a rule, and the rule is loaded.

                                If your not seeing the table listed under diagnostics. Then no it wouldn't work..

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                                • I
                                  interessierter @johnpoz
                                  last edited by

                                  @johnpoz said in VLAN an Firewall rule not matching:

                                  @interessierter well if you do not see your table populated, then that would explain why that rule is not working.

                                  As I highlighted, tables that you create with an alias are not populated until they are put into a rule, and the rule is loaded.

                                  If your not seeing the table listed under diagnostics. Then no it wouldn't work..

                                  But what did I wrong? I have saved and applied the rule after creating, and I m sure that the firewall was also rebooted in the time between (what should be anyway not required).

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                                  • johnpozJ
                                    johnpoz LAYER 8 Global Moderator @interessierter
                                    last edited by

                                    @interessierter You sure your not seeing a error about memory? You sure look to have a lot of aliases..

                                    And none of your rules show any hits at all - they all show 0/0 for states.

                                    When you have lots entries in your tables - it can cause a memory issue.

                                    There are many a thread related to this about. Here for example

                                    https://forum.netgate.com/topic/154266/error-s-loading-the-rules-tmp-rules-debug-28-cannot-define-table-pfb_pri2_alienvault_v4-cannot-allocate-memory

                                    Have you increased your table entries?

                                    maxtable.jpg

                                    This setting is system / advanced / firewall & nat

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                                    • Bob.DigB
                                      Bob.Dig LAYER 8
                                      last edited by Bob.Dig

                                      This post is deleted!
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                                      • johnpozJ
                                        johnpoz LAYER 8 Global Moderator @Bob.Dig
                                        last edited by

                                        @bob-dig said in VLAN an Firewall rule not matching:

                                        It looks like an alias can't start with a number

                                        Looks to be working here..

                                        test.jpg

                                        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
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                                        • Bob.DigB
                                          Bob.Dig LAYER 8 @johnpoz
                                          last edited by Bob.Dig

                                          @johnpoz You are right, I had no rule using it. Working here too.

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                                          • johnpozJ
                                            johnpoz LAYER 8 Global Moderator @Bob.Dig
                                            last edited by johnpoz

                                            @bob-dig no problem - it was a good check to be sure.

                                            if I had to "GUESS" from how many aliases he has setup, and I see some there labeled IPv6, etc..

                                            He needs to adjust his max table entries.. Maybe his not seeing the error that should show up when rules don't load because of allocation of memory.. I would assume that TOP_v6 rule would be quite large..

                                            I also don't like that none of his rules showing any hits at all 0/0 there for states..

                                            His any any IPv4 rule he shows for sure should show something vs 0/0.. That is if anything is hitting that interface at all for traffic. But tables in rules don't actually have to trigger to populate - they just need to be used in a rule. And the rules reloaded, which would happen when you hit apply.

                                            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
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