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

    IPSec VPN tunnel with 1 ISP that has a Dynamic IP.

    Scheduled Pinned Locked Moved IPsec
    5 Posts 2 Posters 814 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.
    • D
      derekaleixoitba
      last edited by derekaleixoitba

      Hello, I have a quite unique situation that iam hoping pfSense have some magical solution :)

      Anyways! I have a piece of hardware that runs Windows Imbedded that does not allow any type of install.
      I need this piece of hardware to connect from a users home (who has a dynamic IP from their ISP) and pass the traffic to the head office, connecting through a branch vpn tunnel.
      Another pickle is that it has to sit behind the ISP's modem / router (cannot be bridged).

      Aside from obtaining the hardware to install the pfSense firmware, can pfSense act as a "client" to connect to an IpSec tunnel? so basically it initiates the connection instead of the mutual static ip - to - static IP trust.

      1 Reply Last reply Reply Quote 0
      • jimpJ
        jimp Rebel Alliance Developer Netgate
        last edited by

        Yes, that works fine. Depending on what is handling IPsec at the main site, it will likely need a dynamic DNS hostname on the site with the dynamic IP address, but there are plenty of supported providers out there for that.

        Remember: Upvote with the ๐Ÿ‘ button for any user/post you find to be helpful, informative, or deserving of recognition!

        Need help fast? Netgate Global Support!

        Do not Chat/PM for help!

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

          This post is deleted!
          1 Reply Last reply Reply Quote 0
          • D
            derekaleixoitba @jimp
            last edited by

            @jimp

            yes, i was looking into using dyndns. The receiving end would be a WatchGuard Firewall
            I guess the biggest concern is if pfSense can route around the ISP's router - example:

            Windows imbedded device -> pfSense firewall -> ISP Router - Dynamic (dishing out LAN IP's) -> internet -> ISP w/ Static IP -> Watchguard firewall

            A lot of firewalls have issues doing that and the tunnel just does not get established, it requires the modem to be bridged (at the very least).

            Does this still make sense?

            1 Reply Last reply Reply Quote 0
            • jimpJ
              jimp Rebel Alliance Developer Netgate
              last edited by

              That shouldn't matter, as long as the ISP router doesn't block or otherwise mess with IPsec.

              Remember: Upvote with the ๐Ÿ‘ button for any user/post you find to be helpful, informative, or deserving of recognition!

              Need help fast? Netgate Global Support!

              Do not Chat/PM for help!

              1 Reply Last reply Reply Quote 0
              • First post
                Last post
              Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.