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PFSENSE couldnt get WAN ip from modem

Scheduled Pinned Locked Moved Problems Installing or Upgrading pfSense Software
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  • D
    droeders
    last edited by Dec 7, 2017, 7:17 PM

    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
      rangarajan
      last edited by Dec 8, 2017, 9:05 AM

      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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      • ?
        Guest
        last edited by Dec 8, 2017, 9:25 AM

        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
          rangarajan
          last edited by Dec 8, 2017, 9:31 AM

          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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          • ?
            Guest
            last edited by Dec 8, 2017, 9:36 AM

            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
              rangarajan
              last edited by Dec 8, 2017, 9:41 AM

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

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              • R
                rangarajan
                last edited by Dec 8, 2017, 10:01 AM

                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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                • ?
                  Guest
                  last edited by Dec 8, 2017, 10:24 AM

                  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
                    rangarajan
                    last edited by Dec 8, 2017, 10:34 AM

                    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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                    • ?
                      Guest
                      last edited by Dec 8, 2017, 10:36 AM

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

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                      • R
                        rangarajan
                        last edited by Dec 8, 2017, 10:41 AM

                        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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                        • ?
                          Guest
                          last edited by Dec 8, 2017, 10:44 AM

                          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
                            rangarajan
                            last edited by Dec 11, 2017, 4:06 AM

                            hi ,

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

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                            • S
                              stephenw10 Netgate Administrator
                              last edited by Dec 11, 2017, 2:31 PM

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

                              Can we see a screenshot from Status > Interfaces.

                              Steve

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                              • R
                                rangarajan
                                last edited by Dec 12, 2017, 4:10 AM

                                no WAN interface is in RED

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                                • N
                                  NollipfSense
                                  last edited by Dec 12, 2017, 5:25 PM Dec 12, 2017, 5:20 PM

                                  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
                                    rangarajan
                                    last edited by Dec 13, 2017, 4:11 AM

                                    should i need to change any settings over there ?

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                                    • S
                                      stephenw10 Netgate Administrator
                                      last edited by Dec 17, 2017, 5:10 PM

                                      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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                                      • S
                                        stephenw10 Netgate Administrator
                                        last edited by Dec 17, 2017, 5:20 PM

                                        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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                                        • R
                                          rangarajan
                                          last edited by Dec 18, 2017, 4:18 AM

                                          yes but public ip is not detected in wan interface i don't know why

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