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    Why do I need TS installed on pfsense router?

    Scheduled Pinned Locked Moved Tailscale
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    • chudakC
      chudak @johnpoz
      last edited by

      @johnpoz said in Why do I need TS installed on pfsense router?:

      @chudak that rule is what seems to allow it - here I set it to log, and made a connection via my phone and you can see it showing a state

      allowing.jpg

      Did you try just access say your webgui on your pfsense lan IP?

      Did you set up any of these?

      https://tailscale.com/kb/1146/pfsense/?q=pfsen
      https://tailscale.com/kb/1181/firewalls
      https://tailscale.com/kb/1082/firewall-ports

      In addition to the standard TS install?

      johnpozJ 1 Reply Last reply Reply Quote 0
      • johnpozJ
        johnpoz LAYER 8 Global Moderator @chudak
        last edited by

        @chudak those are all about clients behind pfsense making their own TS connections, I have none of those.. I allowed the 41641 port to my wan that is it..

        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

        chudakC 2 Replies Last reply Reply Quote 1
        • chudakC
          chudak @johnpoz
          last edited by

          @johnpoz said in Why do I need TS installed on pfsense router?:

          @chudak those are all about clients behind pfsense making their own TS connections, I have none of those.. I allowed the 41641 port to my wan that is it..

          TCP/UDP on 41641 on WAN?

          johnpozJ 1 Reply Last reply Reply Quote 0
          • chudakC
            chudak @johnpoz
            last edited by

            @johnpoz

            Finally made it work :)

            It does require TS port to be open on WAN + All all traffic on talescale interface

            The confusion was that TS has to be restarted in order to show the difference

            Thx @johnpoz

            1 Reply Last reply Reply Quote 0
            • johnpozJ
              johnpoz LAYER 8 Global Moderator @chudak
              last edited by johnpoz

              @chudak mine is set for UDP only - I set it up long time ago.. I must of looked to see what they require.. But Its working.. If I connect my phone from sell it shows direct connection and my rule shows a state.

              connection.jpg

              My phone on cell only gets IPv6, but t-mobile converts it to IPv4 when connecting to IPv4 stuff.

              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

              chudakC 1 Reply Last reply Reply Quote 0
              • chudakC
                chudak @johnpoz
                last edited by

                @johnpoz said in Why do I need TS installed on pfsense router?:

                @chudak mine is set for UDP only

                Changed my to UDP only and confirmed it still works fine

                1 Reply Last reply Reply Quote 0
                • M
                  michmoor LAYER 8 Rebel Alliance
                  last edited by michmoor

                  For what its worth i do not have the TS port open on my WAN side and im able to make direction connection and access all LAN resources.

                  The snippet is from my phone on LTE.

                  60d237b3-1aa9-49c5-9172-37fce4673881-image.png

                  WAN rules

                  a0717bd2-ffe9-4e33-ae03-40da099be7b7-image.png

                  Firewall: NetGate,Palo Alto-VM,Juniper SRX
                  Routing: Juniper, Arista, Cisco
                  Switching: Juniper, Arista, Cisco
                  Wireless: Unifi, Aruba IAP
                  JNCIP,CCNP Enterprise

                  chudakC 1 Reply Last reply Reply Quote 0
                  • chudakC
                    chudak @michmoor
                    last edited by

                    @michmoor said in Why do I need TS installed on pfsense router?:

                    For what its worth i do not have the TS port open on my WAN side and im able to make direction connection and access all LAN resources.

                    The snippet is from my phone on LTE.

                    60d237b3-1aa9-49c5-9172-37fce4673881-image.png

                    WAN rules

                    a0717bd2-ffe9-4e33-ae03-40da099be7b7-image.png

                    Also confirmed
                    I disabled the open port 41461 rule and still see everything working fine.

                    But you do have a rule on the TS interface, don't you? As here:

                    4084dc95-9f4b-490e-a5b5-49cb540dcf62-image.png

                    that seem like a must to have

                    johnpozJ M 2 Replies Last reply Reply Quote 0
                    • johnpozJ
                      johnpoz LAYER 8 Global Moderator @chudak
                      last edited by johnpoz

                      @chudak I am pretty sure it uses stun to get through the nat. But its better to on purpose open it so you can view it, etc.

                      https://tailscale.com/blog/how-tailscale-works

                      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

                      1 Reply Last reply Reply Quote 0
                      • M
                        michmoor LAYER 8 Rebel Alliance @chudak
                        last edited by michmoor

                        @chudak
                        TS rules are not required if accessing resources on your LAN. The reason is all in how TS and FreeBSD work out the routing. Essentially the most direct interface out to your LAN will be your source IP.
                        For example, if your LAN gateway IP is 192.168.1.1 then when you access a server on that LAN from TS, the server will see incoming requests from 192.168.1.1.

                        88a57c6e-31e6-42dd-9088-40f956019d32-image.png

                        IMO, i do not like the implementation of TS on the firewall for this very reason. ACLs must be done on the TS controller but require you to write it in JSON. Its not difficult to write but its cumbersome. The default ACL on Tailsale is 'any-any' which is why communication works out of the box so to speak.
                        If this is for remote access to your home then no biggie but i would highly advise not to use this for any business deployment.

                        Here are my ACL rules which work in my limited environment i am using this.

                        0c19c10e-ab52-4fc2-9c43-146fba7dc86d-image.png

                        Firewall: NetGate,Palo Alto-VM,Juniper SRX
                        Routing: Juniper, Arista, Cisco
                        Switching: Juniper, Arista, Cisco
                        Wireless: Unifi, Aruba IAP
                        JNCIP,CCNP Enterprise

                        johnpozJ 1 Reply Last reply Reply Quote 0
                        • johnpozJ
                          johnpoz LAYER 8 Global Moderator @michmoor
                          last edited by

                          @michmoor I by any means not a tailscale expert or even user.. I have it up and running, it works - but I don't normally use it. if I need to remote in I use openvpn as my go too.

                          But if rules are not needed on the interface - why is showing traffic when was testing if could access pfsense web gui, doing some pings, etc..

                          traffic.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
                          SG-4860 24.11 | Lab VMs 2.8, 24.11

                          M 1 Reply Last reply Reply Quote 0
                          • M
                            michmoor LAYER 8 Rebel Alliance @johnpoz
                            last edited by michmoor

                            @johnpoz
                            Traffic from your Tailnet is trying to hit your Tailnet IP assigned to the interface on your pfsense.
                            If i try to access my pfsense tailscale IP or try to ping it from my tailscale device like a laptop it fails because i dont have firewall rules on the interface. But you dont need it to access your LAN anyway so rules arent required. What im saying is that its not required to access your pfSense over your tailnet.

                            I believe its all outlined in these two videos.
                            https://www.youtube.com/watch?v=Fg_jIPVcioY&t=1315s
                            https://www.youtube.com/watch?v=P-q-8R67OPY&t=923s

                            Firewall: NetGate,Palo Alto-VM,Juniper SRX
                            Routing: Juniper, Arista, Cisco
                            Switching: Juniper, Arista, Cisco
                            Wireless: Unifi, Aruba IAP
                            JNCIP,CCNP Enterprise

                            johnpozJ 1 Reply Last reply Reply Quote 0
                            • johnpozJ
                              johnpoz LAYER 8 Global Moderator @michmoor
                              last edited by

                              @michmoor said in Why do I need TS installed on pfsense router?:

                              If i try to access my pfsense tailscale IP

                              Exactly - which is what he was trying to do, use his tailscale IP.

                              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

                              1 Reply Last reply Reply Quote 0
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