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    WebGui inaccessible from LAN after OpenVPN server enabled…Huh??

    Scheduled Pinned Locked Moved General pfSense Questions
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    • J
      JimPhreak
      last edited by

      @Derelict:

      Sounds like your subnets might be overlapping or something.

      What are your interface subnets, your OpenVPN tunnel network subnets, and any OpenVPN remote networks.  Please include netmasks.

      I'm on version 2.2.2.

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      • DerelictD
        Derelict LAYER 8 Netgate
        last edited by

        Yeah.  What are all the other subnets in the router?  Be specific.

        Chattanooga, Tennessee, USA
        A comprehensive network diagram is worth 10,000 words and 15 conference calls.
        DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
        Do Not Chat For Help! NO_WAN_EGRESS(TM)

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        • DerelictD
          Derelict LAYER 8 Netgate
          last edited by

          Or is your IPMI somehow taking over your LAN connection?  Is there a dedicated port?  Is the "BIOS" set for dedicated?

          Chattanooga, Tennessee, USA
          A comprehensive network diagram is worth 10,000 words and 15 conference calls.
          DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
          Do Not Chat For Help! NO_WAN_EGRESS(TM)

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          • J
            JimPhreak
            last edited by

            @Derelict:

            Yeah.  What are all the other subnets in the router?  Be specific.

            The only other subnet on the router is my WAN connection which is 108.x.x.x/24 assigned via DHCP by my ISP.

            @Derelict:

            Or is your IPMI somehow taking over your LAN connection?  Is there a dedicated port?  Is the "BIOS" set for dedicated?

            I checked and in the BIOS it was set to "unspecified" so I set it to static.  Not sure whay setting an OpenVPN server would cause the IPMI interface to freak out though.

            EDIT:  Ok something is going on with my IPMI.  When I launch IPMIView it shows my pfSense box (192.168.4.10) as active.  However when I try to login to it, the login fails and then it goes inactive.  Then I have to discover it again and when I do that, it's discovering it with an IP address of 192.168.4.255 which doesn't make sense since that's the broadcast address.  However once it discovers the IPMI device at that IP address and I login to it, the original IPMI device (192.168.4.10) becomes active again and I can only access that IP address and no longer the 192.168.4.255 device.

            I have a bunch of SM boards with IPMI on them and I've never had them act this way.  However I'm wondering if it has something to do with the fact that the board on which the IPMI is acting as the router/switch by which is communicates.

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            • DerelictD
              Derelict LAYER 8 Netgate
              last edited by

              The thing is is OpenVPN doesn't behave as you're describing so it's something else.

              Chattanooga, Tennessee, USA
              A comprehensive network diagram is worth 10,000 words and 15 conference calls.
              DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
              Do Not Chat For Help! NO_WAN_EGRESS(TM)

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              • J
                JimPhreak
                last edited by

                @Derelict:

                The thing is is OpenVPN doesn't behave as you're describing so it's something else.

                See my edit above, something doesn't seem right with my IPMI.  Will try unplugging it when I get home tonight and testing the OpenVPN server again to see if that's the culprit.

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                • DerelictD
                  Derelict LAYER 8 Netgate
                  last edited by

                  A dedicated IPMI port set to dedicated is usually best.  Hope it's that easy.

                  Chattanooga, Tennessee, USA
                  A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                  DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                  Do Not Chat For Help! NO_WAN_EGRESS(TM)

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                  • J
                    JimPhreak
                    last edited by

                    @Derelict:

                    A dedicated IPMI port set to dedicated is usually best.  Hope it's that easy.

                    I'm hoping so too but I'm skeptical.  The moment I configure the OpenVPN server and hit save, the web gui becomes inaccessible and then my box becomes unavailable via IPMI until I rediscover it which has it show back up as 192.168.4.255.  Seems like something on my pfSense box itself is causing the issue.  It's such a new setup and I have so little configured on it I don't know what it could be.  I wonder if it's a bug in 2.2.2 though.  Maybe I'll try rolling back and see if that helps at all.

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                    • J
                      JimPhreak
                      last edited by

                      I'm starting to lean towards this being a bug.  I've disabled everything on my firewall (easy to do since it's a new setup) other than my LAN and WAN interface.  Unplugged IPMI so it's off the network.  Removed any routes/firewall rules/NAT rules I had in place yet it still gives me the same issue  the moment I enable OpenVPN server.

                      I guess the next thing for me to try is rolling back to 2.2.1 and see what happens.

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                      • DerelictD
                        Derelict LAYER 8 Netgate
                        last edited by

                        Doubt it's a bug.  You have something misconfigured somewhere.  Maybe get on the console and look at the routing table, etc when you enable the OpenVPN.

                        Chattanooga, Tennessee, USA
                        A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                        DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                        Do Not Chat For Help! NO_WAN_EGRESS(TM)

                        1 Reply Last reply Reply Quote 0
                        • J
                          JimPhreak
                          last edited by

                          @Derelict:

                          @Derelict:

                          Doubt it's a bug.  You have something misconfigured somewhere.  Maybe get on the console and look at the routing table, etc when you enable the OpenVPN.

                          Here are my routing tables before and after I enable OpenVPN.

                          Before:

                          Routing tables

                          Internet:
                          Destination        Gateway            Flags      Netif Expire
                          default            L101.NYCMNY-VFTTP- UGS        igb0
                          nsnyny01.verizon.n 0c:c4:7a:33:d6:f4  UHS        igb0
                          nsnwrk01.verizon.n 0c:c4:7a:33:d6:f4  UHS        igb0
                          108.30.70.0        link#1            U          igb0
                          pool-108-30-70-185 link#1            UHS        lo0
                          localhost          link#7            UH          lo0
                          192.168.0.0/22    192.168.4.10      UGS        igb1
                          192.168.4.0        link#2            U          igb1
                          pfSense            link#2            UHS        lo0

                          After:

                          Routing tables

                          Internet:
                          Destination        Gateway            Flags      Netif Expire
                          default            L101.NYCMNY-VFTTP- UGS        igb0
                          10.0.8.1          link#9            UHS        lo0
                          10.0.8.2          link#9            UH      ovpns1
                          nsnyny01.verizon.n 0c:c4:7a:33:d6:f4  UHS        igb0
                          nsnwrk01.verizon.n 0c:c4:7a:33:d6:f4  UHS        igb0
                          108.30.70.0        link#1            U          igb0
                          pool-108-30-70-185 link#1            UHS        lo0
                          localhost          link#7            UH          lo0
                          192.168.0.0/22    192.168.4.10      UGS        igb1
                          192.168.4.0        link#2            U          igb1
                          pfSense            link#2            UHS        lo0

                          When I turn the OpenVPN server on, the only thing that appears to not be working is the WebGui.  I can SSH into the router but just can't access it via browser.  The rest of my network appears fine.  I will try and connect one of the OpenVPN clients and see if the tunnel is working tomorrow.

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                          • DerelictD
                            Derelict LAYER 8 Netgate
                            last edited by

                            What is this:

                            192.168.0.0/22    192.168.4.10      UGS        igb1

                            What is igb1?

                            That is what you have defined as the remote networks for the OpenVPN server.  Why is the same route on a local interface?  What is 192.168.4.10?

                            Please post the output of Diagnostics > Command Prompt netstat -rn -finet to avoid all the name substitution so we can see the real routes.

                            Chattanooga, Tennessee, USA
                            A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                            DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                            Do Not Chat For Help! NO_WAN_EGRESS(TM)

                            1 Reply Last reply Reply Quote 0
                            • J
                              JimPhreak
                              last edited by

                              @Derelict:

                              What is this:

                              192.168.0.0/22    192.168.4.10      UGS        igb1

                              What is igb1?

                              That is what you have defined as the remote networks for the OpenVPN server.  Why is the same route on a local interface?  What is 192.168.4.10?

                              Please post the output of Diagnostics > Command Prompt netstat -rn -finet to avoid all the name substitution so we can see the real routes.

                              192.168.4.10 is the gateway to my Verizon Actiontec "router"  which I converted to an ether net bridge to serve my set top boxes.  I thought that could be the culprit but I disabled that route and gateway and it still gave me the same issue.

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                              • DerelictD
                                Derelict LAYER 8 Netgate
                                last edited by

                                Show me.  Your stuff is hosed, bro.  OpenVPN just simply doesn't do what you're describing.  Get off the assumption that you have found a "bug" and try to find what you have buggered up.

                                Chattanooga, Tennessee, USA
                                A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                                DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                                Do Not Chat For Help! NO_WAN_EGRESS(TM)

                                1 Reply Last reply Reply Quote 0
                                • DerelictD
                                  Derelict LAYER 8 Netgate
                                  last edited by

                                  Just noticed this:

                                  I rediscover it which has it show back up as 192.168.4.255

                                  .255 is the broadcast address for a /24, not a valid host address as you have noted.  Something buggered.

                                  Ok something is going on with my IPMI.  When I launch IPMIView it shows my pfSense box (192.168.4.10) as active.

                                  You just said that 192.168.4.10 was some actiontec router, not pfSense.  Which is it?

                                  Chattanooga, Tennessee, USA
                                  A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                                  DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                                  Do Not Chat For Help! NO_WAN_EGRESS(TM)

                                  1 Reply Last reply Reply Quote 0
                                  • J
                                    JimPhreak
                                    last edited by

                                    I know something is configured wrong on my end, I don't believe it's a bug anymore which was why I changed the title of my thread.

                                    192.168.4.10 is a gateway to my Verizon Actiontec "router" (with a router of 192.168.0.0/22) configured on my pfSense box which has an IP address of 192.168.4.1.  192.168.4.10 WAS the IPMI address but before I had configured that gateway, I forgot I had changed it.  Just to clarify:

                                    192.168.4.1: LAN address of pfSense box
                                    192.168.4.10:  Gateway address to Actiontec router (old IP for IPMI)
                                    192.168.4.250:  Current IPMI address

                                    I realize it looks bad that my old IPMI address and the address for the gateway to my Actiontec are the same but I can assure they are not currently configured to be the same.

                                    To further confirm a that conflict not being the problem I unplugged my IPMI, and removed the 192.168.4.10 gateway along with the 192.168.0.0/22 route for it from pfSense and still have the same issues once I enable OpenVPN.

                                    What would you like me to show display to show that being the case?  Remove them again and do another netstat -r?

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                                    • DerelictD
                                      Derelict LAYER 8 Netgate
                                      last edited by

                                      Another set of netstat -rn -finet commands before and after you do whatever with OpenVPN that appears to break stuff would probably be good.

                                      If you can't get at the webGUI you can do it in ssh.

                                      Chattanooga, Tennessee, USA
                                      A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                                      DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                                      Do Not Chat For Help! NO_WAN_EGRESS(TM)

                                      1 Reply Last reply Reply Quote 0
                                      • J
                                        JimPhreak
                                        last edited by

                                        @Derelict:

                                        Another set of netstat -rn -finet commands before and after you do whatever with OpenVPN that appears to break stuff would probably be good.

                                        If you can't get at the webGUI you can do it in ssh.

                                        Disabled the 192.168.4.10 gateway and 192.168.0.0/22 route.  Then ran netstat -rn -finet commands before and after enabling OpenVPN server.  Results below:

                                        Before OpenVPN enabled:
                                        Routing tables

                                        Internet:
                                        Destination        Gateway            Flags      Netif Expire
                                        default            108.30.70.1        UGS        igb0
                                        68.237.161.12      0c:c4:7a:33:d6:f4  UHS        igb0
                                        71.250.0.12        0c:c4:7a:33:d6:f4  UHS        igb0
                                        108.30.70.0/24    link#1            U          igb0
                                        108.30.70.185      link#1            UHS        lo0
                                        127.0.0.1          link#7            UH          lo0
                                        192.168.4.0/24    link#2            U          igb1
                                        192.168.4.1        link#2            UHS        lo0

                                        After OpenVPN enabled:

                                        Routing tables

                                        Internet:
                                        Destination        Gateway            Flags      Netif Expire
                                        default            108.30.70.1        UGS        igb0
                                        10.0.8.1          link#9            UHS        lo0
                                        10.0.8.2          link#9            UH      ovpns1
                                        68.237.161.12      0c:c4:7a:33:d6:f4  UHS        igb0
                                        71.250.0.12        0c:c4:7a:33:d6:f4  UHS        igb0
                                        108.30.70.0/24    link#1            U          igb0
                                        108.30.70.185      link#1            UHS        lo0
                                        127.0.0.1          link#7            UH          lo0
                                        192.168.4.0/24    link#2            U          igb1
                                        192.168.4.1        link#2            UHS        lo0

                                        Looks to me like the only difference is that it adds the 10.0.8.0 interfaces.  Don't see why that alone would break the WebGui.

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                                        • DerelictD
                                          Derelict LAYER 8 Netgate
                                          last edited by

                                          Where are you accessing the webgui from?  What address are you accessing?  You are also not getting the route(s) for the remote networks so that's still buggered.  You should probably post your serverX.conf from /var/etc/openvpn.

                                          Chattanooga, Tennessee, USA
                                          A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                                          DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                                          Do Not Chat For Help! NO_WAN_EGRESS(TM)

                                          1 Reply Last reply Reply Quote 0
                                          • J
                                            JimPhreak
                                            last edited by

                                            @Derelict:

                                            Where are you accessing the webgui from?  What address are you accessing?  You are also not getting the route(s) for the remote networks so that's still buggered.  You should probably post your serverX.conf from /var/etc/openvpn.

                                            I'm accessing from a PC on my LAN (192.168.4.50).  I'm trying to access https://192.168.4.1 like I always do from the LAN.  Right now I have no remote networks configured in the OpenVPN server.  I tried to strip it down as much as possible to isolate the problem.  So the only network configured in the OpenVPN server is the VPN network itself (10.0.8.0/32) which is why the remote networks are not showing up.

                                            How can I view that config file from the console?  I can get into the directory fine but not sure how to view/access the file.  Sorry not very familiar with FreeBSD commands.

                                            Just not computing for me that I can access the server fine over SSH from my PC but not via HTTPS.  How can that be a routing issue?

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