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    ZeroTier Question

    IT Discussion
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    • D
      dafyre @Dashrender
      last edited by

      @Dashrender said in ZeroTier Question:

      @WLS-ITGuy said in ZeroTier Question:

      @dafyre I got the onsite vs offsite part. However, shouldn't ZeroTier handle the offsite routing? Or is that not how this works 🙂

      It's not about handling routing because there would be no route.

      Example
      Server internal wire network IP - 192.16.8.10
      ________________________ZT IP - 10.0.50.10

      If, when you're offsite, DNS returns the 192.16.8.10 address, the ZT network would never look at this traffic because it's not part of the ZT network. Instead that traffic would go to the normal NIC, wireless probably, and go out that way and of course fail.

      And this is why I default to building a ZT Gateway. Yes, it is more work up front. Yes, it is slightly more complicated. However, it prevents you from having to deal with these types of issues.

      W S 2 Replies Last reply Reply Quote 0
      • D
        dafyre @Dashrender
        last edited by

        @Dashrender said in ZeroTier Question:

        @WLS-ITGuy said in ZeroTier Question:

        Also, if I ping another server from off site I get this:

        http://i.imgur.com/i2l62Y5.png

        WOW - how does that happen? What is returning that IP address? I wonder if the coffeehouse server is returning bad info?

        You probably need to ipconfig /flushdns ?

        D 1 Reply Last reply Reply Quote 1
        • W
          WLS-ITGuy @Dashrender
          last edited by

          @Dashrender said in ZeroTier Question:

          @WLS-ITGuy said in ZeroTier Question:

          Also, if I ping another server from off site I get this:

          http://i.imgur.com/i2l62Y5.png

          WOW - how does that happen? What is returning that IP address? I wonder if the coffeehouse server is returning bad info?

          This is from a single user at his home.

          1 Reply Last reply Reply Quote 0
          • W
            WLS-ITGuy @dafyre
            last edited by

            @dafyre said in ZeroTier Question:

            @Dashrender said in ZeroTier Question:

            @WLS-ITGuy said in ZeroTier Question:

            @dafyre I got the onsite vs offsite part. However, shouldn't ZeroTier handle the offsite routing? Or is that not how this works 🙂

            It's not about handling routing because there would be no route.

            Example
            Server internal wire network IP - 192.16.8.10
            ________________________ZT IP - 10.0.50.10

            If, when you're offsite, DNS returns the 192.16.8.10 address, the ZT network would never look at this traffic because it's not part of the ZT network. Instead that traffic would go to the normal NIC, wireless probably, and go out that way and of course fail.

            And this is why I default to building a ZT Gateway. Yes, it is more work up front. Yes, it is slightly more complicated. However, it prevents you from having to deal with these types of issues.

            If I put the ZT IP Addresses in the ZT NIC I won't need to do this, yes?

            D 1 Reply Last reply Reply Quote 0
            • D
              Dashrender @dafyre
              last edited by

              @dafyre said in ZeroTier Question:

              @Dashrender said in ZeroTier Question:

              @WLS-ITGuy said in ZeroTier Question:

              Also, if I ping another server from off site I get this:

              http://i.imgur.com/i2l62Y5.png

              WOW - how does that happen? What is returning that IP address? I wonder if the coffeehouse server is returning bad info?

              You probably need to ipconfig /flushdns ?

              But where did the 198.105.x.x IP come from? that is not anywhere on the OP's network (that we know of). When I ping that FQDN here I get could not fined host.

              D 1 Reply Last reply Reply Quote 0
              • D
                dafyre @WLS-ITGuy
                last edited by

                @WLS-ITGuy said in ZeroTier Question:

                @dafyre said in ZeroTier Question:

                @Dashrender said in ZeroTier Question:

                @WLS-ITGuy said in ZeroTier Question:

                @dafyre I got the onsite vs offsite part. However, shouldn't ZeroTier handle the offsite routing? Or is that not how this works 🙂

                It's not about handling routing because there would be no route.

                Example
                Server internal wire network IP - 192.16.8.10
                ________________________ZT IP - 10.0.50.10

                If, when you're offsite, DNS returns the 192.16.8.10 address, the ZT network would never look at this traffic because it's not part of the ZT network. Instead that traffic would go to the normal NIC, wireless probably, and go out that way and of course fail.

                And this is why I default to building a ZT Gateway. Yes, it is more work up front. Yes, it is slightly more complicated. However, it prevents you from having to deal with these types of issues.

                If I put the ZT IP Addresses in the ZT NIC I won't need to do this, yes?

                What happens when your user is at home... and gets a 172.16 IP address... and your ZT IP range is 192.168.130.xx?

                It's just like me and Dash were telling you a minute ago... It's not going to know how to find the 172 network.

                1 Reply Last reply Reply Quote 0
                • D
                  dafyre @Dashrender
                  last edited by dafyre

                  @Dashrender said in ZeroTier Question:

                  @dafyre said in ZeroTier Question:

                  @Dashrender said in ZeroTier Question:

                  @WLS-ITGuy said in ZeroTier Question:

                  Also, if I ping another server from off site I get this:

                  http://i.imgur.com/i2l62Y5.png

                  WOW - how does that happen? What is returning that IP address? I wonder if the coffeehouse server is returning bad info?

                  You probably need to ipconfig /flushdns ?

                  But where did the 198.105.x.x IP come from? that is not anywhere on the OP's network (that we know of). When I ping that FQDN here I get could not fined host.

                  Good point... Could it be from an old web host, or an old internal DNS entry for something?

                  Edit: Let us further muddy the waters... I get a totally different 198 address...

                  0_1462910805767_upload-122cd790-3b06-47c3-80f0-afad1f0c74de

                  D 1 Reply Last reply Reply Quote 0
                  • D
                    Dashrender @dafyre
                    last edited by

                    @dafyre said in ZeroTier Question:

                    @Dashrender said in ZeroTier Question:

                    @dafyre said in ZeroTier Question:

                    @Dashrender said in ZeroTier Question:

                    @WLS-ITGuy said in ZeroTier Question:

                    Also, if I ping another server from off site I get this:

                    http://i.imgur.com/i2l62Y5.png

                    WOW - how does that happen? What is returning that IP address? I wonder if the coffeehouse server is returning bad info?

                    You probably need to ipconfig /flushdns ?

                    But where did the 198.105.x.x IP come from? that is not anywhere on the OP's network (that we know of). When I ping that FQDN here I get could not fined host.

                    Good point... Could it be from an old web host, or an old internal DNS entry for something?

                    Sure it could be, but if pinging that server while in the office gets the correct IP, you'd assume the DNS servers in the office would be giving the same response in all places, internal and external.

                    D 1 Reply Last reply Reply Quote 0
                    • D
                      dafyre @Dashrender
                      last edited by

                      @Dashrender said in ZeroTier Question:

                      @dafyre said in ZeroTier Question:

                      @Dashrender said in ZeroTier Question:

                      @dafyre said in ZeroTier Question:

                      @Dashrender said in ZeroTier Question:

                      @WLS-ITGuy said in ZeroTier Question:

                      Also, if I ping another server from off site I get this:

                      http://i.imgur.com/i2l62Y5.png

                      WOW - how does that happen? What is returning that IP address? I wonder if the coffeehouse server is returning bad info?

                      You probably need to ipconfig /flushdns ?

                      But where did the 198.105.x.x IP come from? that is not anywhere on the OP's network (that we know of). When I ping that FQDN here I get could not fined host.

                      Good point... Could it be from an old web host, or an old internal DNS entry for something?

                      Sure it could be, but if pinging that server while in the office gets the correct IP, you'd assume the DNS servers in the office would be giving the same response in all places, internal and external.

                      Except in the case of the end-user's machine not actually hitting the internal DNS, maybe?

                      D 1 Reply Last reply Reply Quote 0
                      • W
                        WLS-ITGuy
                        last edited by

                        I don't know where that 198.105.x.x ip is coming from which is why I asked about the DNS/Office 365 thing.

                        It is not an IP here on campus that is for sure.

                        D 1 Reply Last reply Reply Quote 0
                        • D
                          Dashrender @dafyre
                          last edited by

                          @dafyre said in ZeroTier Question:

                          Except in the case of the end-user's machine not actually hitting the internal DNS, maybe?

                          Sure, but if the user isn't hitting an internal DNS, where would that address come from at all? I would expect it to simply fail, or get a *.wls.wels.net reply back, which isn't happening when I ping, so no reason to believe that would be happening to the home user.

                          JaredBuschJ 1 Reply Last reply Reply Quote 0
                          • D
                            Dashrender @WLS-ITGuy
                            last edited by

                            @WLS-ITGuy said in ZeroTier Question:

                            I don't know where that 198.105.x.x ip is coming from which is why I asked about the DNS/Office 365 thing.

                            It is not an IP here on campus that is for sure.

                            could it belong to corporate?

                            1 Reply Last reply Reply Quote 1
                            • D
                              Dashrender
                              last edited by

                              the reverse lookup for that IP is

                              NetRange: 198.105.240.0 - 198.105.255.255
                              CIDR: 198.105.240.0/20
                              OriginAS:
                              NetName: SEARCHGUIDE
                              NetHandle: NET-198-105-240-0-1
                              Parent: NET-198-0-0-0-0
                              NetType: Direct Assignment
                              RegDate: 2012-07-10
                              Updated: 2012-07-10
                              Ref: http://whois.arin.net/rest/net/NET-198-105-240-0-1

                              OrgName: Search Guide Inc
                              OrgId: SG-63
                              Address: 1942 Broadway
                              Address: Suite 319
                              City: Boulder
                              StateProv: CO
                              PostalCode: 80302
                              Country: US
                              RegDate: 2012-06-26
                              Updated: 2012-06-26
                              Comment: Standard NOC hours are 7am to 6pm EST
                              Ref: http://whois.arin.net/rest/org/SG-63

                              1 Reply Last reply Reply Quote 1
                              • W
                                WLS-ITGuy
                                last edited by

                                Corporate is in Wisconsin

                                1 Reply Last reply Reply Quote 0
                                • D
                                  Dashrender
                                  last edited by

                                  makes me wonder if the router at the coffee shop was taken over and is doing bad things...

                                  Was that IP obtained while at the coffee shop? or did I miss it and it was really someone at their home?

                                  D W 2 Replies Last reply Reply Quote 0
                                  • D
                                    dafyre @Dashrender
                                    last edited by

                                    @Dashrender said in ZeroTier Question:

                                    makes me wonder if the router at the coffee shop was taken over and is doing bad things...

                                    Was that IP obtained while at the coffee shop? or did I miss it and it was really someone at their home?

                                    Someone at their home.

                                    1 Reply Last reply Reply Quote 0
                                    • W
                                      WLS-ITGuy @Dashrender
                                      last edited by

                                      @Dashrender said in ZeroTier Question:

                                      makes me wonder if the router at the coffee shop was taken over and is doing bad things...

                                      Was that IP obtained while at the coffee shop? or did I miss it and it was really someone at their home?

                                      This one is at home.

                                      D 1 Reply Last reply Reply Quote 0
                                      • JaredBuschJ
                                        JaredBusch
                                        last edited by

                                        The user has IPv6 DNS enabled as their first DNS server at home.

                                        0_1462911919117_upload-2982eb2a-27ab-4425-9869-c34ca4ee38b2

                                        Turn off IPv6 on their main network conneciton.

                                        1 Reply Last reply Reply Quote 0
                                        • D
                                          Dashrender @WLS-ITGuy
                                          last edited by

                                          @WLS-ITGuy said in ZeroTier Question:

                                          @Dashrender said in ZeroTier Question:

                                          makes me wonder if the router at the coffee shop was taken over and is doing bad things...

                                          Was that IP obtained while at the coffee shop? or did I miss it and it was really someone at their home?

                                          This one is at home.

                                          What do they have for DNS servers at home? Their ISP? I've seen many ISPs (Cox does this) if you put in a bad address, you get redirected to a bad website request page hosted by Cox instead of getting an invalid domain name as you might rather have. They are trying to making things more understandable for consumers, sadly it just screws us instead.

                                          Have you home user change the DNS provided by their router (if possible) to Google's 8.8.8.8 and 8.8.4.4 and try again.

                                          D 1 Reply Last reply Reply Quote 1
                                          • JaredBuschJ
                                            JaredBusch @dafyre
                                            last edited by

                                            @dafyre said in ZeroTier Question:

                                            @WLS-ITGuy said in ZeroTier Question:

                                            DUDE! YOU ARE A GENIUS! <---Absoluetely no sarcasm

                                            If you are off-site and your DNS server returns the internal IP, stuff still ain't gonna work. 😞

                                            This also goes back to what I said. You do NOT want to do this unless you are 100% ready to manually update your on premise DNS server manually to have every ZeroTier IP address listed.

                                            1 Reply Last reply Reply Quote 0
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