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    Need help with rules

    Scheduled Pinned Locked Moved Firewalling
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    • johnpozJ
      johnpoz LAYER 8 Global Moderator
      last edited by

      You mean if vpn is down?  If vpn is down then clients that are not in the allow rule to use the wan would have no way to get out.. So yeah they would be killed.

      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
        VoNpo
        last edited by

        With "Kill Switch" I mean if VPN goes down, all traffic (except those WAN rules) will be stopped and IP or anything else will be not leaked.

        How does those rules look, what changes would yo do?
        Any improvements for security?

        Example for VPN rule, if change protocol to UDP and destination for PIA server port 1198?
        Would these make rule more secure?

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        • johnpozJ
          johnpoz LAYER 8 Global Moderator
          last edited by

          Huh?  The rule that sends traffic out the vpn gateway - how would internet work if you limited that to 1198 and udp only?

          But your rules look fine - other than there is no reason to call out gateway on you rules to allow access out your wan.. Which would be default anyway.  Your rule for twitch.tv would be an alias that you put in whatever sites you want to be allowed.  Keep in mind that sometimes these can be problematic if the IPs of these sites change all the time with short ttls, etc.

          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
            VoNpo
            last edited by

            heh, have to say I'm totally noob at networking.
            I have had only some "plug in wall and forget" routers before this pfsense router ;D
            But everyday is possible to learn something new, right?

            In this "kill switch" topic all traffic is forced for UDP and port 1198 if I understand correctly?

            https://forum.pfsense.org/index.php?topic=74911.0

            I have changed VPN_VPNV4 to default gateway. Should I switch it back to WAN and set those WAN getaways to default?
            Will it make difference?

            By the way,
            Is there any way to block webRTC leaks via pfsense?
            I found a way to block leaks via browser addon, but it would be nice if it could do easy in router level.
            Without browser addon, those leak test sites show my lan ip in webRTC leak.

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            • I
              ihrewerbung @johnpoz
              last edited by

              @johnpoz hi there. why i dont see your sample attachment? best regards santo

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              • johnpozJ
                johnpoz LAYER 8 Global Moderator
                last edited by johnpoz

                Most likely because this is from 2017, and when they moved forum software some attachments got lost.. Can put up another one.

                What exactly are you wanting to do - best to start you own thread with your own rules and your own questions vs this old thread from 2017

                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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                • I
                  ihrewerbung
                  last edited by ihrewerbung

                  thank you for your fast reply - of course your are right.
                  I can not expect somone to help me in my particular situation (ip-leak by using vpn) and as i am new to pfsense and do not have a deep understanding of network and firewall rules yet, it is not gruanted that i would understand the suggestions made.

                  To your question: what exactly am i wanting:
                  My problem is dns-leak of my ISP-IP while using vpn-provider. But i dont understand why i can not prevent webrtc-leak with pfsense. Eventhough i understand it is primarly a browser issue i would have expected to find a why to answer the WebRTC-request through the firewall-rules and send it to the vpn-provider to make sure the response is not the IP i got from my ISP.

                  i tried guides from three big vpn-provider to setup pfsense with my vpn-provider. Which is going well, but leaks with certain test my IP i got from my ISP.

                  the only difference i can find is that i am using a gateway group to manage 5 vpn connections at tier1 (to "load-balance" them) and the default gateway on tier2 as fallback if all vpn-connections would be down. But even if it set it up with one vpn-connection only and therefore without a gateway group it still leaks my ip-adress with tests like this:

                  https://ip8.com/webrtc-test
                  and
                  https://browserleaks.com/webrtc

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                  • johnpozJ
                    johnpoz LAYER 8 Global Moderator
                    last edited by johnpoz

                    If you want to block webrtc - you disable it at the browser.. Not sure how you think a layer3 firewall would stop traffic that is between where your at and your browser inside the protocol that was allowed..

                    Not using a vpn - and that test doesn't work, because I disabled webrtc in the browser.. If its working for you - then you have not actually disabled it

                    novpn.jpg

                    To your other test... So no vpn - shows public

                    outvpn.jpg

                    Then send that client out a vpn - shows vpn IP..

                    Nothing can do to help you without you showing what your doing..

                    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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                    • I
                      ihrewerbung @johnpoz
                      last edited by

                      @johnpoz thx a lot. Seeing your rule, i realised i had a "tiny" mistake in my lan-rule with vpn gateway within the protocol typ i had tcp and had lower a rule to any without vpn. now i changed it and all is fine. thx. a lot.

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                      • johnpozJ
                        johnpoz LAYER 8 Global Moderator
                        last edited by

                        Keep in mind as well when you create a rule - there could be states already that would be evaluated first.. Whenever you edit your rules that there could be states there from your previous rules evaluation that could be allowing something you are now blocking.

                        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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                        • I
                          ihrewerbung @johnpoz
                          last edited by

                          @johnpoz yes, from now on i will keep in mind this :-)

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