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

    Access Modem GUI Behind Firewall

    Scheduled Pinned Locked Moved NAT
    firewall rulesnat rulesinterfacegui accessmodem
    107 Posts 5 Posters 16.1k 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
      Globaltrader312 @johnpoz
      last edited by Globaltrader312

      @johnpoz

      sorry the answers always come a little late

      so I have deleted the static route again.

      then i checked the routing tbale once see screen shot interface and IP are visible.

      I created these any to any in the firewall for the lan rules for IPV4 and IPv6 according to the instructions for the failover setup erv, otherwise I created them separately.

      I have selected the failover gateway in the dropdown under advanced in the lan rules I think the firewall will send everything over it can it be because of that ? see screen shot....

      I would like to do your steps I'm just stuck at the point where I write I should create a rule about the Policy Based rules which exactly only the outbound nat I have or another ?

      I will do the sniff and then send the info. Bildschirmfoto 2024-06-24 um 19.59.15.png Bildschirmfoto 2024-06-24 um 20.33.38.pngBildschirmfoto 2024-06-24 um 20.36.15.png Bildschirmfoto 2024-06-24 um 20.43.47.png no traffic comes through when I check with packet capture on interface Vigor BGE 1

      1 Reply Last reply Reply Quote 0
      • G
        Gblenn @johnpoz
        last edited by Gblenn

        @johnpoz said in Access Modem GUI Behind Firewall:

        Set up a static route, under System / Routing / Static Routes... create one with :

        You do not need a route.. If pfsense has an interface connected to network X.. Why would it send traffic out any other gateway be it default or not when it has an interface attached to that network?

        Unless you had a specific route, to this 192.168.5.X address it would always pick the interface it has in network 192.168.5.x

        Viewing the routing table in pfsense could be helpful info.. But there is zero reason to create a route, unless he has created a route with a better route for 192.168.5 out some other interface.

        If he is sending the traffic out some other interface because of policy routing then no its never going to work.. But create a route isn't going to fix his policy routing rule that would be sending traffic out the wrong gateway... He just needs a rule above his policy route that allows the traffic and uses pfsense normal routing..

        Bildschirmfoto 2024-06-24 um 19.59.15.png

        No you are of course absolutely right, his routing table clearly shows 192.168.5.0/24 as well, and I find it strange that it wouldn't "just work". Very confusing all of it though... and if there is some policy rule as well, I missed that...

        A question though... will pfsense process send a request to an unknown IP via the WAN, even if it belongs to an RFC 1918 range? I guess I was thinking it would just drop it?

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

          @Gblenn said in Access Modem GUI Behind Firewall:

          and I find it strange that it wouldn't "just work".

          because as you can see by his lan rules - he is policy routing.. Which has been brought up multiple times already.. He needs a rule to allows the normal routing to work..

          policyroute.jpg

          Here

          https://docs.netgate.com/pfsense/en/latest/multiwan/policy-route.html#bypassing-policy-routing

          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

          G 1 Reply Last reply Reply Quote 1
          • G
            Globaltrader312 @johnpoz
            last edited by

            @johnpoz I apologise for asking this question.

            I have looked at the instructions, unfortunately I do not understand one point in the instructions it says to create an alias for RFC1918 and in the picture it can also be seen that RFC1918 was set as destination.

            but when i want to create a new rule, the destination RF1918 is displayed as invalid IP so i don't quite understand how i can set this i can only set an IP subnet e.g. 192.168.0.0/16

            johnpozJ 1 Reply Last reply Reply Quote 0
            • johnpozJ
              johnpoz LAYER 8 Global Moderator @Globaltrader312
              last edited by

              @Globaltrader312 Huh.. You don't need to create such an alias you could just put in 192.168.0.0/16 cidr in the rule.. Or just your 192.168.5.1/32 or 192.168.5.0/24

              But creating an alias for all rfc1918 space would be done in the alias section

              alias.jpg

              Here would be an example of using it in rule - this isn't a rule like you need but just an example of using the alias in a firewall rule

              rule.jpg

              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

              G 1 Reply Last reply Reply Quote 1
              • G
                Globaltrader312 @johnpoz
                last edited by

                @johnpoz

                I have now created the rule via the Policy Based Rules and traffic is also flowing see screen shot and packet capture

                but the GUI of the Vigor is still not accessible.

                can it be that I still have to enter the changed ports from vigor in the firewall 8080 and 444 which I changed because of an advice from another user a few posts before.Bildschirmfoto 2024-06-24 um 23.39.53.png Bildschirmfoto 2024-06-24 um 23.41.10.png

                johnpozJ 1 Reply Last reply Reply Quote 0
                • johnpozJ
                  johnpoz LAYER 8 Global Moderator @Globaltrader312
                  last edited by johnpoz

                  @Globaltrader312 well if your device is not listening on port 80 any more, and you try and talk to port 80 which is what your sniff shows - then yeah its not going to answer. Either change its port back to 80, or talk to it on port whatever you changed it too

                  http://192.168.5.1:port

                  But your sniff shows 192.168.5.0 -- that is not really a valid IP address using a /24 mask.. I thought you set your pfsense interface to be .2 and or .3 why would it be using .0??

                  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

                  G 1 Reply Last reply Reply Quote 1
                  • G
                    Globaltrader312 @johnpoz
                    last edited by

                    @johnpoz

                    so i have now set the ports back to 80 and 443 it still does not work unfortunately

                    the 192.168.5.0/24 is because when I set Vigor to /32 under interfcaes no packets get through.

                    if i set it to /24 then packets go through at 192.168.5 but it says 192.168.5.0 / 24.Bildschirmfoto 2024-06-25 um 14.16.53.png

                    johnpozJ 1 Reply Last reply Reply Quote 0
                    • johnpozJ
                      johnpoz LAYER 8 Global Moderator @Globaltrader312
                      last edited by

                      @Globaltrader312 no idea what your talking about?

                      Your address there is 192.168.5.3, why would pfsense change the address it sends from to .0??? That doesn't happen

                      The mask of /24 means this

                      The Wire or network is .0, the host address on this /24 network is .1 to .254, the broadcast address is .255

                      What you show there is correct, the interface address would be .3, there is no scenario that I can think of where pfsense would jsut on its own change that to .0 as its source address when natting to that interface.

                      Please post your outbound nat rule..

                      Why do you show .3 and .4?

                      address.jpg

                      Did you create a vip or something? And your natting to the vip address? VIP is not something you need to create.. VIP was my attempt at showing you how it can be done when your actual interface has a actual public IP like mine does... You are using PPPoE so you don't need to create a vip

                      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

                      G 1 Reply Last reply Reply Quote 1
                      • G
                        Globaltrader312 @johnpoz
                        last edited by

                        @johnpoz Bildschirmfoto 2024-06-25 um 16.59.58.png

                        johnpozJ 1 Reply Last reply Reply Quote 0
                        • johnpozJ
                          johnpoz LAYER 8 Global Moderator @Globaltrader312
                          last edited by johnpoz

                          @Globaltrader312 just show your outbound nat tab.. Not the specific details of 1 of them - for a we know this one isn't even being used because you have some other one above it.

                          Example here is mine

                          nat.jpg

                          But this isn't right

                          network.jpg

                          Click the dropdown and pick the Vigor address, which would be 192.168.5.3 from your screenshot

                          dropdownjpg.jpg

                          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

                          G 1 Reply Last reply Reply Quote 1
                          • G
                            Globaltrader312 @johnpoz
                            last edited by Globaltrader312

                            @johnpoz Bildschirmfoto 2024-06-25 um 17.21.57.png

                            thank you guys for your help it works after i entered the alias rfc1918 as soure and selected 192.168.5.0/24 as destination and Vigor aadress as translation address.Bildschirmfoto 2024-06-25 um 17.21.48.png

                            johnpozJ 1 Reply Last reply Reply Quote 1
                            • johnpozJ
                              johnpoz LAYER 8 Global Moderator @Globaltrader312
                              last edited by johnpoz

                              @Globaltrader312 so if you would of followed the instructions, you would of been done in like 2 seconds.

                              And actually understood that you were policy routing.. How did you think something would work when your shoving it out some gateway that is not connected to what you want to talk too?

                              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

                              1 Reply Last reply Reply Quote 0
                              • JonathanLeeJ
                                JonathanLee
                                last edited by

                                Great job, and you also learned port forwarding, ACL ordering, alias creation and much more. I love this forum you can learn so
                                much. Now you just need a OpenVPN configured with a NAS server for private cloud use

                                Make sure to upvote

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