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    Accessing modem from inside firewall

    Scheduled Pinned Locked Moved NAT
    61 Posts 8 Posters 15.1k Views
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    • B
      balubeto
      last edited by

      @johnpoz:

      So create an outbound nat using the vip you created of 10.0.0.2 - do you need a picture?

      How should I fill out this window:


      ?

      Thanks

      Bye

      balubeto

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      • pttP
        ptt Rebel Alliance
        last edited by

        This is how i have it done….  No "VIP" here...

        ADSL Modem in "Bridge"  with 172.20.254.1/29 IP address

        pfSense WAN PPPoE (re1)

        Modem Access Interface  "GEST"  (means: "gestión" = management)  ;)  (re1) with 172.20.254.6/29 IP address

        The rest of the info, in the attached images ;)

        001.png
        001.png_thumb
        002.png
        002.png_thumb
        003.png
        003.png_thumb
        004.png
        004.png_thumb
        005.png
        005.png_thumb
        006.png
        006.png_thumb

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        • B
          balubeto
          last edited by

          @ptt:

          This is how i have it done….  No "VIP" here...

          ADSL Modem in "Bridge"  with 172.20.254.1/29 IP address

          pfSense WAN PPPoE (re1)

          Modem Access Interface  "GEST"  (means: "gestión" = management)  ;)  (re1) with 172.20.254.6/29 IP address

          The rest of the info, in the attached images ;)

          I can not understand the 003 image. What rules should I add?

          Thanks

          Bye

          balubeto

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

            Good catch ptt, no you do not need a vip if your NOT using the wan interface IP I guess.  Good catch that his wan is actually PPPoE.  I was over looking that.

            But I would not suggest manual mode for the outbound nat, just use hybrid and add the nat for interface that is connected to your modem.

            This is really no different than using a vip, but since your really not actually using the IP that is on your physical interface connected to your modem, you can just set the IP right on the interface and no need for 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

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            • DerelictD
              Derelict LAYER 8 Netgate
              last edited by

              Yeah PPPoE is done differently. That writeup has you putting the IP subnet of the modem on the physical interface the PPPoE is on. No VIPs there.

              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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              • B
                balubeto
                last edited by

                I can not understand the 003 image. What rules should I add?

                Thanks

                Bye

                balubeto

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

                  that is not a rule.. That is the actual interface connected to the modem.. Just putting an IP address on it that matches with the IP address of the modems 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
                  SG-4860 24.11 | Lab VMs 2.8, 24.11

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                  • pttP
                    ptt Rebel Alliance
                    last edited by

                    You create & configure the "Interface" for modem access (GEST in my case)

                    then, as John pointed, you set the NAT as "Hybrid"

                    now, you create the NAT Rule (Mapping) to access the Modem…

                    That's all..

                    NAT_Hybrid.png
                    NAT_Hybrid.png_thumb
                    NAT_CFG.png
                    NAT_CFG.png_thumb

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                    • B
                      balubeto
                      last edited by

                      Firewall 192.168.1.1
                      Router 10.0.0.1

                      I configured the router in bridge mode and have configured the firewall in this way





                      When I connect my router to the WAN port on the firewall, I can't access the router. Where did a mistake?

                      Thank you,

                      Bye

                      balubeto

                      1 Reply Last reply Reply Quote 0
                      • pttP
                        ptt Rebel Alliance
                        last edited by

                        Your NAT setting is wrong ….  Set/leave it as "Hybrid Outbound NAT"

                        ![Your NAT is wrong.jpg](/public/imported_attachments/1/Your NAT is wrong.jpg)
                        ![Your NAT is wrong.jpg_thumb](/public/imported_attachments/1/Your NAT is wrong.jpg_thumb)

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                        • B
                          balubeto
                          last edited by

                          @ptt:

                          Your NAT setting is wrong ….  Set/leave it as "Hybrid Outbound NAT"

                          This setting

                          is fine?

                          Thanks

                          Bye

                          balubeto

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

                            Why do you have 10.0.0.0/8 on your lan side??  Also why is your LAN connected to Bridge0???

                            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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                            • B
                              bimmerdriver
                              last edited by

                              My gateway uses a private network address for the management interface. My routers are connected to a bridged port so they don't have visibility of the private network. I wanted to be able to access the gateway, but I was okay with not having it accessible from any computer. I had a spare NIC on the hyper-v server that is hosting the pfsense routers, so I connected it one of the LAN ports on the gateway and bumped up the metric so the route wouldn't be used except to access the private address. I don't think there's any reason why it wouldn't work on any host with dual NICs.

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                              • B
                                balubeto
                                last edited by

                                Router VDSL2 in Bridge mode: 10.0.0.1
                                Firewall hardware: 192.168.1.1

                                I connected the router to the WAN port of the firewall configuring it in this way:










                                but I can not access the router from the LAN and I have no Internet because the PPPoE client can not connect even if its login is correct. Why?

                                Thanks

                                Bye

                                balubeto

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

                                  Does your PPPoE work if you get rid of all the modem access junk? Is there anything interesting in the PPP logs? Are you sure the modem is in bridge mode?

                                  After you get PPPoE working again and you go back to trying to access the modem, are you sure it's 10.0.0.0/8 and not 10.0.0.0/24?

                                  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
                                  • B
                                    balubeto
                                    last edited by

                                    @Derelict:

                                    Does your PPPoE work if you get rid of all the modem access junk? Is there anything interesting in the PPP logs? Are you sure the modem is in bridge mode?

                                    After you get PPPoE working again and you go back to trying to access the modem, are you sure it's 10.0.0.0/8 and not 10.0.0.0/24?

                                    Why should I put 10.0.0.0/24?

                                    Thanks

                                    Bye

                                    balubeto

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

                                      Because that's the netmask the cable modem is configured for? I asked if you were sure. I didn't say you should change 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
                                      • jahonixJ
                                        jahonix
                                        last edited by

                                        And on your Modem_access Interface you should UNcheck "Block private networks".

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

                                          How exactly do you think your nat is going to work?  You have 10.0.0/8 as dest but you also have it a source for your lan automatic nat, etc.

                                          What I would do is START over!!!  delete all that crap.. And why again do you think you need to run a bridge on pfsense?

                                          And I find it highly unlikely your "modem" is using /8 as its mask for its 10 address.. Your status doesn't even show your wan interface up..

                                          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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                                          • B
                                            balubeto
                                            last edited by

                                            I noticed that if I enable the Interfaces –-> Modem_access interface and, then, I click on the Connect button on the Status ---> Interfaces, the firewall connects to the Internet but the computers on the LAN have no more Internet. Why?

                                            Thanks

                                            Bye

                                            balubeto

                                            1 Reply Last reply Reply Quote 0
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