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    PFSENSE couldnt get WAN ip from modem

    Scheduled Pinned Locked Moved Problems Installing or Upgrading pfSense Software
    33 Posts 9 Posters 12.5k Views 1 Watching
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    • R Offline
      rangarajan
      last edited by

      yeah !  then also WAN interface is not detected automatically could you help me in this case

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      • D Offline
        droeders
        last edited by

        There are lots of reasons why this could be failing, but you're not giving us enough information to help you.  In general, please provide as much information as possible, even if you don't think it's relevant.

        What type of internet connection to you have?

        Has this internet connection worked with other firewalls/routers?

        Is the modem hooked directly to your pfSense machine via ethernet or is a switch involved?

        Have you tested this with known good network cables?

        Please tell us what hardware you're using, and in particular, what kind of network interface cards you have?

        The more information the better…

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        • R Offline
          rangarajan
          last edited by

          we have broadband cable modem with type DHCP ,

          yes from cable modem to laptop directly it worked , where as in case if i try from  cable modem to pfsesne firewall its not pinging by default gateway of cable modem as well as DNS server of google 8.8.8.8 ping request also failed

          But from pfsense LAN interface when i connect to LAPTOP directly i can access pfsense web gui.

          cable modem is directly hooked to pfsense WAN interface later from pfsense LAN interface i am trying to connect to switch

          yes , i have tested with good working condition RJ 45 cable

          i am using "hp thin client t5740" as pfsense firewall in my setup

          i do have one WAN interface card in t as well as two LAN interface card in it.

          please try to help me in this .

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          • ? This user is from outside of this forum
            Guest
            last edited by

            OK.

            When you connect your laptop directly to the ISP Router, it works. What is the LAN IP address of he ISP Router?

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            • R Offline
              rangarajan
              last edited by

              When i try to connect my Laptop directly to ISP Modem it works fine i can able to ping default GW 192.168.1.251 and DNS server 8.8.8.8, Apart from it the LAN ip is 192.168.1.197

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              • ? This user is from outside of this forum
                Guest
                last edited by

                And that is why pfSense does not work.

                By default PFSense sets it's LAN network to the 192.168.1.* range, you cannot have that range on both the LAN and WAN interfaces.

                You need to go back to the shell menu of pfSense,Option 2, and change the LAN address and DHCP range to 192.168.2.*

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                • R Offline
                  rangarajan
                  last edited by

                  just a moment am  working on it , thanks for this information i like it

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                  • R Offline
                    rangarajan
                    last edited by

                    hey despite of changing pfsense LAN ip to 192.168.2.* i cant access it in web gui (pfsense) from the system comming under cisco switch connection

                    cable modem (192.168.1.251)> pfsense (192.168.2.1)> cisco switch(smart switch) > other system.(192.168.1.*)

                    from above i am unable to access pfsense web gui from systems under cisso switch(managed one).

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                    • ? This user is from outside of this forum
                      Guest
                      last edited by

                      I said, connect directly to pfSense from your Laptop, where did I say to go via the Cisco switch?

                      Can you connect to pfSense when connected directly from the LAN port of pfSense to your Laptop, YES OR NO?

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                      • R Offline
                        rangarajan
                        last edited by

                        yes , i can directly connect pfsense with LAN port of laptop i get DNS server as 192.168.2.1 and IP V4 of laptop as 192.168.2.2 , Here 192.168.2.1 is the LAN ip assigned in shell prompt of pfsense .

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                        • ? This user is from outside of this forum
                          Guest
                          last edited by

                          Good. Now connect the WAN port of pfSense to the ISP router.

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                          • R Offline
                            rangarajan
                            last edited by

                            yeah , did as directed but WAN ip is not detecting automatically as well as i couldn't ping 8.8.8.8 DNS server of google from laptop command prompt ?

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                            • ? This user is from outside of this forum
                              Guest
                              last edited by

                              OK, leave the WAN connected, and go into the pfSense Web interface, What does it show as the IP address of the WAN interface?

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                              • R Offline
                                rangarajan
                                last edited by

                                hi ,

                                sorry for delay .No IP is detected its empty in the WAN interface field.

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                                • stephenw10S Offline
                                  stephenw10 Netgate Administrator
                                  last edited by

                                  Does it show the WAN interface as UP? (green arrow)

                                  Can we see a screenshot from Status > Interfaces.

                                  Steve

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                                  • R Offline
                                    rangarajan
                                    last edited by

                                    no WAN interface is in RED

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                                    • NollipfSenseN Offline
                                      NollipfSense
                                      last edited by

                                      Dude…why are you opening multiply thread on the same exact issue...that's a big turn off!

                                      Onto the subject at hand...sounds to me some conflict going on with your cable modem and might need to be in bridge mode.

                                      pfSense+ 23.09 Lenovo Thinkcentre M93P SFF Quadcore i7 dual Raid-ZFS 128GB-SSD 32GB-RAM PCI-Intel i350-t4 NIC, -Intel QAT 8950.
                                      pfSense+ 23.09 VM-Proxmox, Dell Precision Xeon-W2155 Nvme 500GB-ZFS 128GB-RAM PCIe-Intel i350-t4, Intel QAT-8950, P-cloud.

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                                      • R Offline
                                        rangarajan
                                        last edited by

                                        should i need to change any settings over there ?

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                                        • stephenw10S Offline
                                          stephenw10 Netgate Administrator
                                          last edited by

                                          A screenshot of the WAN from Status > Interfaces would be very helpful here. Please try to get that.

                                          If the interface shows the red 'down' arrow though that implies it's not even connected. I would look for a link issue, perhaps a bad cable or speed/duplex mismatch. That assumes your WAN is Ethernet directly though, if it's PPP of some sort there may be other issues. The screenshot would tell us all that.

                                          Steve

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                                          • stephenw10S Offline
                                            stephenw10 Netgate Administrator
                                            last edited by

                                            I see in fact you did post a screenshot in one of the other threads you opened. I re-attached it here.

                                            That shows what looks to be a working connection. The WAN is linked, UP and has a valid IP.

                                            It seems like you are trying to put the cable router in modem mode to bridge the PPP connection yes?

                                            Steve

                                            troubleshooting.png
                                            troubleshooting.png_thumb

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