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    Access Modem GUI Behind Firewall

    Scheduled Pinned Locked Moved NAT
    firewall rulesnat rulesinterfacegui accessmodem
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    • G
      Globaltrader312 @johnpoz
      last edited by

      @johnpoz I have to correct myself apparently the ICMP packets are going through but it seems like there was constant packet loss according to the ping plotter even though I had internet via DSL.

      that Ink plotter shows packet loss is nothing new Noermalerweise only when I have WAN 1 on Vodafone Business Cable Internet 1000 MBIT Down and 50 UP with Public IPV4 but there are often problems there.

      what I am generally wondering is whether the PFsense has problems with onboard NIC I use a Dell EMC R430 as a server for the PFsense there are 3 Onoard ETH connections and the 4 in an extra Inteel 350 Quad Port Card PCIE there goes once LAN out WAN 3 mobile in.

      all are on GBIT.

      Translated with www.DeepL.com/Translator (free version)

      G 1 Reply Last reply Reply Quote 0
      • G
        Globaltrader312 @Globaltrader312
        last edited by

        @Globaltrader312 What do you mean by MAX ?

        the instructions say yesConfigure a new Interface

        A PPPoE WAN is actually assigned to a virtual PPPoE adapter, not the physical port.

        Navigate to Interfaces > Assignments
        Set Available network ports: to the physical network card for the PPPoE WAN

        For example, if the WAN is PPPOE0(ix3), choose ix3.

        Click fa-plus Add to assign this port as a new OPT interface
        Navigate to Interfaces > (new OPT interface)
        Configure the settings as follows:

        Enable
        :
        Checked
        Description
        :
        ModemAccess or a similar useful name.
        IPv4 Configuration Type
        :
        Static
        IPv4 Address
        :
        Configure an IP address in the same subnet as the modem, such as 192.168.1.5/24. in my case I have configured 192.168.5.2/24
        IPv4 Upstream Gateway
        :
        None

        Do not set a gateway. I have not set one
        Click Save
        Click Apply Changes

        To add the NAT:

        Navigate to Firewall > NAT, Outbound tab.
        Switch to Hybrid Outbound NAT and click Save
        Click fa-plus to add a new Outbound NAT rule
        Configure the settings as follows:
        Interface
        :
        ModemAccess
        Source
        :
        Network, enter the LAN subnet there I have 192.168.1.0/24
        Destination
        :
        The IP subnet of the modem
        Translation and here 192.168.5.0/24
        :
        Interface Address here I have entered the INtefrace address 192.168.5.1/24
        Click Save

        unfortunately there is no connection for the GUI

        patient0P 1 Reply Last reply Reply Quote 0
        • JonathanLeeJ
          JonathanLee
          last edited by JonathanLee

          You need to make a ACL for both interfaces you want to use icmp on. You can’t do one without the other. I see you made one ACL but where is the ACL for the other interface or subnet?

          Make sure to upvote

          G 1 Reply Last reply Reply Quote 0
          • G
            Globaltrader312 @JonathanLee
            last edited by

            @JonathanLee

            what exactly do you mean by ACL ? can you perhaps give me the relevant paragraph from the instructions, thank you.

            with WAN 1 Cable ICMP always works with only one rule only with PPOE it sometimes works stupidly

            maybe you can also tell me why the MOdem access does not work thanks

            JonathanLeeJ 1 Reply Last reply Reply Quote 0
            • JonathanLeeJ
              JonathanLee @Globaltrader312
              last edited by JonathanLee

              @Globaltrader312 ACL (Access Control List) your pass or block rules are ACLs. If you’re using more than one interface you need to approve ICMP on both interfaces for them to ping each other. What port is used for GUI access on your modem? Check on ARP page also to get the IP address assigned to the modem. It should show the MAC and the IP being used. You show WAN2 and Vigor? Is that is a different interface? What happened to WAN you show WAN2 I noticed if that’s the case what is your gateway set as WAN or WAN2, also have you looked at your outbound NAT rules if you are using multiple WAN interfaces? Can you ping it from the firewall ping page?

              Make sure to upvote

              G 1 Reply Last reply Reply Quote 0
              • G
                Globaltrader312 @JonathanLee
                last edited by

                @JonathanLee the instructions say yesConfigure a new Interface

                A PPPoE WAN is actually assigned to a virtual PPPoE adapter, not the physical port.

                Navigate to Interfaces > Assignments
                Set Available network ports: to the physical network card for the PPPoE WAN

                For example, if the WAN is PPPOE0(ix3), choose ix3.

                Click fa-plus Add to assign this port as a new OPT interface
                Navigate to Interfaces > (new OPT interface)
                Configure the settings as follows:

                Enable
                :
                Checked
                Description VIGOR BGE 0 the same as PPOE only a new interface
                :
                ModemAccess or a similar useful name.
                IPv4 Configuration Type
                :
                Static
                IPv4 Address
                :
                Configure an IP address in the same subnet as the modem, such as 192.168.1.5/24. in my case I have configured 192.168.5.2/24
                IPv4 Upstream Gateway
                :
                None

                Do not set a gateway. I have not set one
                Click Save
                Click Apply Changes

                To add the NAT:

                Navigate to Firewall > NAT, Outbound tab.
                Switch to Hybrid Outbound NAT and click Save
                Click fa-plus to add a new Outbound NAT rule
                Configure the settings as follows:
                Interface
                :
                ModemAccess
                Source
                :
                Network, enter the LAN subnet there I have 192.168.1.0/24
                Destination
                :
                The IP subnet of the modem
                Translation and here 192.168.5.0/24
                :
                Interface Address here I have entered the INtefrace address 192.168.5.1/24
                Click Save

                unfortunately there is no connection for the GUI

                JonathanLeeJ 1 Reply Last reply Reply Quote 0
                • JonathanLeeJ
                  JonathanLee @Globaltrader312
                  last edited by JonathanLee

                  @Globaltrader312 what does your arp table show? After you find the Mac and IP pair try to ping that address from the firewall itself they have a diagnostic area that allows pings to be tested. What port does your GUI is it 80? 8080? Does it use ssl?

                  Make sure to upvote

                  G 1 Reply Last reply Reply Quote 0
                  • G
                    Globaltrader312 @JonathanLee
                    last edited by

                    @JonathanLee
                    ACL (Access Control List): Your rules for allowing or blocking are ACLs. If you use more than one interface, you must allow ICMP on both interfaces so that they can ping each other.

                    Which port is used for GUI access on your modem? Port 80

                    The IP address assigned to the modem is 192.168.5.1

                    The MAC and IP used should be displayed there. Do you see WAN2 and Vigor?
                    Is that a different interface? WAN 2 is with PPPOE on bge2

                    the interface of the modem is Vigor as name and running bge2

                    What happened to WAN, you are showing WAN2, not WAN is working normally except packet loss every now and then.

                    important I use a Faliover setup with Multi WAN 3 WAN interefaces

                    WAN 1 Vodafone Business Cable DHCP BGE1

                    WAN 3 Mobile Backup 4G bge3

                    lan is bge 4

                    I have set everything up according to the following video https://www.youtube.com/watch?v=uQTvMSNylf4&pp=ygUacGZzZW5zZSBtdWx0aSB3YW4gZmFpbGJvZXI%3D

                    if that is the case, what is your gateway set as WAN or WAN2, have you also looked at your outbound NAT rules if you are using multiple WAN interfaces?

                    Can you ping from the firewall ping side?

                    ping from pfsense guy to 8.8.8.8 works

                    the modem does not use ssl

                    G 1 Reply Last reply Reply Quote 0
                    • G
                      Globaltrader312 @Globaltrader312
                      last edited by

                      @Globaltrader312 infos in screenshot Bildschirmfoto 2024-06-22 um 17.10.44.png Bildschirmfoto 2024-06-22 um 17.33.28.png Bildschirmfoto 2024-06-22 um 17.35.25.png Bildschirmfoto 2024-06-22 um 17.36.43.png

                      ping to 192.168.5.1 works

                      G 1 Reply Last reply Reply Quote 0
                      • G
                        Globaltrader312 @Globaltrader312
                        last edited by Globaltrader312

                        @Globaltrader312 with my edge router, the sorce nat rule has always worked for modem access via SSH or GUI via browser to 192.168.5.1 not possible. when I make the ping from the LAN interface then 100 packetlossBildschirmfoto 2024-06-22 um 17.46.52.png

                        JonathanLeeJ 1 Reply Last reply Reply Quote 0
                        • JonathanLeeJ
                          JonathanLee @Globaltrader312
                          last edited by

                          @Globaltrader312 said in Access Modem GUI Behind Firewall:

                          @Globaltrader312 with my edge router, the sorce nat rule has always worked for modem access via SSH or GUI via browser to 192.168.5.1 not possible. when I make the ping from the LAN interface then 100 packetlossBildschirmfoto 2024-06-22 um 17.46.52.png

                          Do you have a static route set for this traffic, this is on a different subnet, you would an ACL for port 80 to access it. It’s gonna be blocked by default. What subnet do you attempt to access the modem from?

                          Make sure to upvote

                          G 1 Reply Last reply Reply Quote 0
                          • G
                            Globaltrader312 @JonathanLee
                            last edited by Globaltrader312

                            @JonathanLee Bildschirmfoto 2024-06-22 um 14.27.05.png Bildschirmfoto 2024-06-22 um 14.26.46.png
                            Bildschirmfoto 2024-06-22 um 20.41.27.png

                            I want to reach / access the subnet 192.168.5.0/24 to access the GUI of the modem at 192.168.5.1

                            I have configured the following interface bge 0 description Vigor this is the interface for the modem.

                            I have entered the following there

                            see screen shot

                            there I have entered a static IPV4 on the subnet of the modem 192.68.5.2/24

                            I then created the outbound nat rule

                            see screen shot 2

                            so exactly as in the instructions there was nothing about ACL etc.

                            I also tried the same with the firewall rule

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

                              @Globaltrader312 dude is the interface you created this 192.168.5.2 address connected to your modem?

                              What is pfsense wan?? What specific vigor "modem/router" do you have.. If the thing is doing nat already and pfsense gets a 192.168.5.x address there is NOTHING to do to access your modems interface from behind pfsense.. Any traffic coming from your lan would be natted to pfsense wan IP.

                              A simple drawing of your network and how the device connects to pfsense and what interface, and are you getting internet through this connection? Is pfsense wan a 192.168.5 network, or is pfsense getting a public IP because the device is bridge mode, or are you using PPPoe for the connection, etc..

                              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 2.7.2, 24.11

                              G 1 Reply Last reply Reply Quote 0
                              • patient0P
                                patient0 @Globaltrader312
                                last edited by

                                @Globaltrader312 said in Access Modem GUI Behind Firewall:

                                To add the NAT:
                                ...
                                Interface Address here I have entered the INtefrace address 192.168.5.1/24
                                Click Save

                                I got the same configuration, PPPoE with an Vigor166.

                                For the NAT: Translation Address ("Interface Address" in the doc) is the IP of your pfSense interface in the modem network, "Vigor address" in your case or 192.168.5.2.

                                G 1 Reply Last reply Reply Quote 0
                                • G
                                  Globaltrader312 @johnpoz
                                  last edited by

                                  @johnpoz said in Access Modem GUI Behind Firewall:

                                  dude is the interface you created this 192.168.5.2 address connected to your modem?

                                  What is pfsense wan?? What specific vigor "modem/router" do you have.. If the thing is doing nat already and pfsense gets a 192.168.5.x address there is NOTHING to do to access your modems interface from behind pfsense.. Any traffic coming from your lan would be natted to pfsense wan IP.

                                  A simple drawing of your network and how the device connects to pfsense and what interface, and are you getting internet through this connection? Is pfsense wan a 192.168.5 network, or is pfsense getting a public IP because the device is bridge mode, or are you using PPPoe for the connection, etc..

                                  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 23.09.1 | Lab VMs 2.7.2, 24.03

                                  i have put the digram online via link because i can't upload it
                                  Network Diagram

                                  dude is the interface you created this 192.168.5.2 address connected to your modem? yes

                                  What is pfsense wan?? i have 3 WAN with Multiwan and Failover setup

                                  WAN 1 Vodafone Cable DHCP Public IP static Per DHCP

                                  WAN SVDL PPPOE Public IP Static per PPPOE

                                  WAN 3 Mobile behind router Mikrotik Chateau 5G DHCP

                                  all are in one gateway group Failover GW

                                  What specific model vigor 167

                                  the Vigor only does MODEM mode no VLAN tagging or anything else

                                  the Vigor has only one subnet to access the subnet is 192.168.5.0/24 the GUI is reachable at 192.168.5.1

                                  the interface Vigor at Assignments is the interface on bge1 which is only available for accessing the modem GUI.

                                  this has the static IPV4 192.168.5.2/24

                                  The following setup 2 modems 1 router

                                  Multimedia socket Coax connection Technicolor TC4400
                                  Modem connected via COAX cable to the multimedia socket and a Lan cable to bge 0 on the Pfsense establishes the connection via DHCP and gets the Static Public iPv4 and V6 via Static DHCP.

                                  Telephone socket 1 TAE cable to Vigor then 1 LAN cable from Vigor to bge1 to pfsense pfsense dials in via PPPOE with Static IPV4 Public assigned by the provider's RAS server.

                                  Router Mikrotik Chatau 5G with Sim card Telekom Germany connected via LAN cable to PFsense bge2 connection is established via DHCP only Private IPv4 address 192.168.88.0/24

                                  1 Reply Last reply Reply Quote 0
                                  • G
                                    Globaltrader312 @patient0
                                    last edited by Globaltrader312

                                    @patient0 I have now changed it but unfortunately I still cannot access the GUI of the Vigor.

                                    Bildschirmfoto 2024-06-22 um 23.21.30.png

                                    patient0P JonathanLeeJ 2 Replies Last reply Reply Quote 0
                                    • patient0P
                                      patient0 @Globaltrader312
                                      last edited by

                                      @Globaltrader312 Ok, the firewall rule for LAN with destination is not needed, btw.

                                      Your NAT Outbound rule looks ok, although it's easier to use "LAN subnets" as source and "VIGOR subnets" but it should work.

                                      Have you changed the IP of the Vigor167? Meaning are you sure the subnet is 192.168.5.0/ ? If you check the ARP table you see the modem?

                                      G 1 Reply Last reply Reply Quote 0
                                      • G
                                        Globaltrader312 @patient0
                                        last edited by

                                        @patient0 no i have not changed the vigor subnet and i am 100% sure that it is correct i was connected directly to the macbook via LAN 2 days ago and could access it. just not via the pfsense

                                        patient0P 1 Reply Last reply Reply Quote 0
                                        • patient0P
                                          patient0 @Globaltrader312
                                          last edited by patient0

                                          @Globaltrader312 I see.

                                          To be sure:

                                          • you're connecting to the internet by PPPoE using the Vigor167, yes?
                                          • Are you able to connect to the internet right now with the pfSense?
                                          • On what interface is PPPoE set?
                                          • The VIGOR interface is assigned to the same interface as the PPPoE?
                                          • Can you see the modem MAC and/or IP in the ARP table (Diagnostics > ARP table"
                                          • When you connected using the Mac, did you assign the IP to your Mac yourself or did it get one? And the IP your Mac got was .192.168.5.x not 192.168.1.5? 192.168.1.1 is the default network for the Vigor according to the docu.
                                          G 1 Reply Last reply Reply Quote 0
                                          • G
                                            Globaltrader312 @patient0
                                            last edited by

                                            @patient0

                                            you're connecting to the internet by PPPoE using the Vigor167, yes? yes
                                            Are you able to connect to the internet right now with the pfSense? yes with all 3 WAN interfaces
                                            On what interface is PPPoE set? bge1
                                            The VIGOR interface is assigned to the same interface as the PPPoE? yes bge1
                                            Can you see the modem MAC and/or IP in the ARP table (Diagnostics > ARP table" yes
                                            When you connected using the Mac, did you assign the IP to your Mac yourself or did it get one? And the IP your Mac got was .192.168.5.x not 192.168.1.5? 192.168.1.1 is the default network for the Vigor according to the docu.

                                            when i connect to the mac i assign the ip manually in the settings with 192.168.5.3 Bildschirmfoto 2024-06-23 um 00.22.27.png

                                            patient0P JonathanLeeJ 2 Replies Last reply Reply Quote 0
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