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

    NAT port 80 kills web GUI == BIG PROBLEM

    Scheduled Pinned Locked Moved NAT
    6 Posts 3 Posters 5.4k 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.
    • B
      bruor
      last edited by

      ok found a bit of a bug in pfsense.  i run a webserver behind one of these boxes. and i have been able to reproduce the following VERY accurately.

      if you are running pfsense on the default port 80,  and you setup a NAT rule for the WAN interface on port 80, the pfsense box will no longer accept port 80 connections from the LAN interface.
      i have reproduced this on 2 separate different boxes, but using the same network cards.

      the easiest workaround for this is to move the webgui to another port, but this was bad becasue it seemed like my monowall config was killing the pfsense box.  and monowall handles this scenario just fine.
      if it is a limitation of pf in bsd to not differentiate between the interfaces when a connection is made etc, then i can understand.  otherwise it seems like there could be an issue with the way the system works/adds the rules etc…

      1 Reply Last reply Reply Quote 0
      • B
        bruor
        last edited by

        just realized that there is a similar post here…  http://forum.pfsense.org/index.php?topic=146.0

        1 Reply Last reply Reply Quote 0
        • S
          sullrich
          last edited by

          @bruor:

          just realized that there is a similar post here…  http://forum.pfsense.org/index.php?topic=146.0

          Turn off NAT reflection in advanced…

          1 Reply Last reply Reply Quote 0
          • B
            bruor
            last edited by

            no problem,  i am assuming nat redirection just allows you to punch in your domain name from inside the subnet, and access it as if you were coming in from outside the network ?

            1 Reply Last reply Reply Quote 0
            • H
              hoba
              last edited by

              it allows you to access nated services by your wan ip from your internal network(s).
              let's say you have forwarded your wan ip port 80 to port 85 at a machine on lan a client coming from the inside will be able to access that port 85 at that machine by using the wan ip and port 80. Without reflection that doesn't work.

              1 Reply Last reply Reply Quote 0
              • B
                bruor
                last edited by

                thanks, for the fast reply hoba,  exactly what i thought it did,  and gladly not important at all for me since it doesn't seem to work without disrupting that port on the lan interface  ;)

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