• Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Search
  • Register
  • Login
Netgate Discussion Forum
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Search
  • Register
  • Login

Can't connect windows computer to openvpn

Scheduled Pinned Locked Moved OpenVPN
20 Posts 5 Posters 1.7k Views
Loading More Posts
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • G
    Gertjan @Tiger 0
    last edited by Aug 2, 2021, 7:56 AM

    @tiger-0 said in Can't connect windows computer to openvpn:

    We can't configure the firewall from our router that was given by our ISP.

    If you have an upstream (ISP) router in front of pfSense, you have to "NAT"that router.
    That's not a choice, it's mandatory.

    NATting a port in the ISP's router isn't something special. I never saw an ISP - using their routers - in France (where I live) that doesn't support NAT.

    No "help me" PM's please. Use the forum, the community will thank you.
    Edit : and where are the logs ??

    1 Reply Last reply Reply Quote 0
    • V
      viragomann @Tiger 0
      last edited by Aug 2, 2021, 10:16 AM

      @tiger-0
      At least there should be a possibility on the router to set an internal IP or device as "DMZ" or "exposed host", which typically means that the router forwards any traffic to the stated IP or device.

      N 1 Reply Last reply Aug 2, 2021, 12:07 PM Reply Quote 0
      • N
        noplan @viragomann
        last edited by Aug 2, 2021, 12:07 PM

        @viragomann

        in Austria there are some (gettin more and more) ISP business routers (modems) that dont allow port forwarding opening ports and so on ... they provide a private range and thats it
        so no openVPN for a lot of business (small) customers from one of the largest ISP here ;)

        yah there is a way round set the providerBox to bridge mode and use your pfS instead of that provider box

        and yeah i like that approach @Gertjan

        That's not a choice, it's mandatory.

        G V 2 Replies Last reply Aug 2, 2021, 12:20 PM Reply Quote 0
        • G
          Gertjan @noplan
          last edited by Aug 2, 2021, 12:20 PM

          @noplan said in Can't connect windows computer to openvpn:

          in Austria there are some (gettin more and more) ISP business routers (modems) that dont allow port forwarding opening ports and so on ... they provide a private range and thats it
          so no openVPN for a lot of business (small) customers from one of the largest ISP here ;)

          If they don't have enough "IPv4" for their clients, then yes, that's possible.
          IPv6 was created to solve that issue.

          @noplan said in Can't connect windows computer to openvpn:

          modems

          Modems are often bridges.
          With those devices their is nothing to 'NAT' as modems (bridges) don't work with "IP" addresses.
          They (the ISP) could still offer you some RFC1918 ......

          No "help me" PM's please. Use the forum, the community will thank you.
          Edit : and where are the logs ??

          1 Reply Last reply Reply Quote 0
          • V
            viragomann @noplan
            last edited by Aug 2, 2021, 12:45 PM

            @noplan said in Can't connect windows computer to openvpn:

            in Austria there are some (gettin more and more) ISP business routers (modems) that dont allow port forwarding opening ports and so on

            Business routers? Not seen such ones up to now.

            no openVPN for a lot of business (small) customers from one of the largest ISP here ;)

            I know a business customer who got a CGN IP, but wanted to run services inside his network. A phone call to the "largest" provider was sufficient to get a public IPv4.
            However, this was 2 years ago and the IPv4 lack is going on, of course.

            N 1 Reply Last reply Aug 2, 2021, 3:31 PM Reply Quote 0
            • N
              noplan @viragomann
              last edited by Aug 2, 2021, 3:31 PM

              @viragomann

              largest ISP in Austria no chance in hell to get anything else than a 10.0.0.0/24
              and the ISP DNS as i mentioned earlier sold to small business

              some of the things have nothing to to with the lack of IPV4
              just with money the ISP wants from his clients :)

              V 1 Reply Last reply Aug 2, 2021, 4:01 PM Reply Quote 0
              • V
                viragomann @noplan
                last edited by Aug 2, 2021, 4:01 PM

                @noplan said in Can't connect windows computer to openvpn:

                largest ISP in Austria no chance in hell to get anything else than a 10.0.0.0/24

                Yes, I'm talking about this one.

                I know the 10.0.0.0/24 only from the ISP routers. But up to now, any was able to forward traffic and also could be set into bridge mode.

                However, if you don't intervene, you might get a CGN WAN IP, something like 100.x.x.x, which is not public and hence cannot be accessed from outside.

                N 1 Reply Last reply Aug 2, 2021, 7:34 PM Reply Quote 0
                • N
                  noplan @viragomann
                  last edited by Aug 2, 2021, 7:34 PM

                  @viragomann

                  got a talk with that ISP today motivated by your post ;)

                  this business connect they sell only works
                  a) you get a private 10.0.0.0/24 and no open ports whatever
                  b) a box set in bridge mode and you have to deal with all the other nasty stuff

                  not sure if there isn't a small fee each month for usin b)

                  oh man i love ADSL in austria ;)

                  V 1 Reply Last reply Aug 2, 2021, 7:52 PM Reply Quote 0
                  • V
                    viragomann @noplan
                    last edited by Aug 2, 2021, 7:52 PM

                    @noplan said in Can't connect windows computer to openvpn:

                    b) a box set in bridge mode and you have to deal with all the other nasty stuff

                    Therefor we use pfSense, which handles much better the nasty stuff then the any providers router. 😊

                    N 1 Reply Last reply Aug 3, 2021, 6:40 AM Reply Quote 0
                    • N
                      noplan @viragomann
                      last edited by Aug 3, 2021, 6:40 AM

                      @viragomann said in Can't connect windows computer to openvpn:

                      Therefor we use pfSense, which handles much better the nasty stuff then the any providers router

                      yeeessss
                      Totally agree on that one !

                      1 Reply Last reply Reply Quote 0
                      20 out of 20
                      • First post
                        20/20
                        Last post
                      Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.
                        This community forum collects and processes your personal information.
                        consent.not_received