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    Can't access webGUi when setting fix LAN IP

    Scheduled Pinned Locked Moved Problems Installing or Upgrading pfSense Software
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    • johnpozJ
      johnpoz LAYER 8 Global Moderator @forstera
      last edited by johnpoz

      @forstera your changing the IP on your PC/Device your connecting to pfsense web gui with.

      Did you set the mask correctly?

      If you got IP address from dhcp say 192.168.1.42 from pfsense, and you set this static on your machine and pfsense IP is say 192.168.1.1

      Or are you you trying to change pfsense lan IP?

      Pfsense doesn't care if you got your IP via dhcp or set it static on the device.

      example:

      My pfsense lan IP is 192.168.9.253/24

      I can access it be it my pc IP is gotten via dhcp, or you see when I change it to static.

      staticip.jpg

      An intelligent man is sometimes forced to be drunk to spend time with his fools
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      • stephenw10S
        stephenw10 Netgate Administrator
        last edited by

        You might also need to set a DNS server if you're accessing the gui by fqdn. That normally gets passed by dhcp too.

        johnpozJ 1 Reply Last reply Reply Quote 1
        • johnpozJ
          johnpoz LAYER 8 Global Moderator @stephenw10
          last edited by

          @stephenw10 valid point, but you would hope if dns isn't working you would try just the 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
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          • F
            forstera
            last edited by

            Hi @johnpoz and @stephenw10 and thanks very much for your help.

            I realize I need to be more specific about the description of my problem. Actually, I've a ClearOS system I use in my network and I want to replace it by Pfsense.
            Clearos is acting for the while as firewall and dhcp server. So I started to install PFSense but for the while, the WAN interface is not connected. My pfsense lan IP received its IP adress from Clearos and the IP gateway is the clearos' one.
            when I access Pfsense, i use its IP adress and I can access it without any problem.
            I can access it as long as the address comes from my dhcp server.
            But if I manually change this address to a static address (same address and subnet mask), I can no longer access it. This bothers me because the next step would be to activate PFsense's DHCP server, but I need a static IP address for that ...
            and I don't understand why pfsense no longer reacts to address type changes. I always use the IP address to connect to the web server and not the fqdn.
            Could il be linked to the fact the WAN interface of pfsense is not yet connected ?
            Thanks to all

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

              @forstera said in Can't access webGUi when setting fix LAN IP:

              My pfsense lan IP received its IP adress from Clearos and the IP gateway is the clearos' one

              that wouldn't be a "lan" on pfsense - if an interface of pfsense has a gateway it would be a "wan" to pfsense. You don't set a lan ip of pfsense as dhcp.

              Maybe a drawing of how its setup with your clearOS box and how you want to set it up without the clearOS might help figure out what your doing wrong.

              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

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              • F
                forstera @johnpoz
                last edited by

                @johnpoz yes, I've read that the lan interface of my pfsense should not have a gateway Ip. If it's the cas, it is considered as a wan interface.
                I didn't configure it in this way but i wonder if, when receiving an ip adresse from my clearos dhcp server, it receives a gateway, too.
                i'm doing a drawing and post it soon ..

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                • F
                  forstera
                  last edited by

                  According to what you said about the fact that an interface with a gateway is considered as a wan interface, I wonder if it's not the source of my problem.
                  Here's my temporary situation :
                  2012a781-9b34-4d2e-a3c8-d6665be22b9c-image.png

                  Because Pfsense receives it's Ip adress from Clearos, it receives a gateway ip address, too ..
                  2ae669a8-ce86-4736-9ed5-80b135cae7ef-image.png

                  so it's acting as a wan interface?
                  then, when I manually fix it's IP adress without gateway, it's acting as a Lan interface. But it should be easier to reach when it behaves like a lan interface compared to a wan interface; but here it's the opposite ..
                  b7ef6035-ae27-4f98-896f-20e730c237fc-image.png
                  Should i change the interface assignement, too ?

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                  • F
                    forstera @johnpoz
                    last edited by forstera

                    @johnpoz said in Can't access webGUi when setting fix LAN IP:

                    that wouldn't be a "lan" on pfsense - if an interface of pfsense has a gateway it would be a "wan" to pfsense. You don't set a lan ip of pfsense as dhcp.

                    I agree with you, the goal is to change my lan Ip of my pfsense from dhcp to fix ip address but when I do that I can't access my pfsense anymore from my lan...

                    Interesting but out of idea now ..

                    I configure my PFsense as it should be once I'll have removed my Clearos Server. Here it is :
                    ef43fd1e-2d3d-435a-98f1-8f05d8a0f404-image.png

                    the wan interface has a special configuration because it is linked to my provider's modem with a dedicated ip address. this is exactly the same configuration as my clearos wan interface which works till many years now.

                    What is interesting here is that as soon as I changed my wan ip adress with the one displayed (dhcp address -> ip fix address) I could not access my pfsense anymore through it's webgui (I did not change its dchp ip address at this time).
                    So I continued and change my lan ip address with the one displayed but still impossible to access it ..
                    so here, my ip adresses and interfaces are correct. so what could be the problem ?

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                    • johnpozJ
                      johnpoz LAYER 8 Global Moderator @forstera
                      last edited by johnpoz

                      @forstera from your drawing

                      This is how pfsense should be

                      network.jpg

                      If you take your clearOS out of the picture pfsense WAN would get an IP from your internet provider device, this should really be some public IP, but it could be some rfc1918 IP or cgnat IP.. Your clients then on pfsense lan could be on 172.16.35.0/24 if you want.. Or some other rfc1918 network that does not overlap with what is on pfsense WAN network.

                      If pfsense wan network is still going to be 172.16.35 pointing to some gateway 172.16.35.1 that is not your clearOS but provides internet, then pfsense LAN and its lan side devices should be on some network that does not overlap that 172.16.35 network.

                      if you changed pfsense wan to be 172.31.255.6/30 - what is its gateway? 172.31.255.5 - does this actually give internet access.. You can't just make up IPs the network that pfsense wan is attached to with a gateway of the 172.31.255.5 would need to give internet access.

                      And your devices actually have to be on the L2 of pfsense lan on 172.16.35.0/24 using pfsense 35.5 as their gateways. Can these devices ping pfsense IP on this 172.16.35.5 address from their 172.16.35.X ips?

                      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

                      F 1 Reply Last reply Reply Quote 1
                      • F
                        forstera @johnpoz
                        last edited by

                        @johnpoz Hello and thanks for your message,
                        Thank you very much for your message and the time you took to answer.
                        Finally, I decided to remove the ClearOS box and connected PFSense directly to the modem/routeur and it worked.
                        Thanks again for your time :)
                        Best Regards

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