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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 12.4k Views
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    • R
      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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      • ?
        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
          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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          • ?
            Guest
            last edited by

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

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            • R
              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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              • ?
                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
                  rangarajan
                  last edited by

                  hi ,

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

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                  • stephenw10S
                    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
                      rangarajan
                      last edited by

                      no WAN interface is in RED

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                      • NollipfSenseN
                        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
                          rangarajan
                          last edited by

                          should i need to change any settings over there ?

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                          • stephenw10S
                            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
                              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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                              • R
                                rangarajan
                                last edited by

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

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                                • stephenw10S
                                  stephenw10 Netgate Administrator
                                  last edited by

                                  If it's showing a private IP on the WAN like in that screenshot it's because the ISP supplied modem/router is not passing it through. Instead is it running a dhcp server and giving pfSense a lease from that.

                                  If it's a PPPoE connection you will need to configure the 'modem' to run is modem or bridge mode and then configure the PPPoE connection on the pfSense WAN.

                                  Steve

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                                  • R
                                    rangarajan
                                    last edited by

                                    yeah i tried  to login to modem gw 192.168.1.251 for PPPoE configuration but i am unable to login to url with this gateway ip

                                    can please share me how to configure PPPoE configuration steps

                                    Thank you

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                                    • GertjanG
                                      Gertjan
                                      last edited by

                                      @rangarajan:

                                      can please share me how to configure PPPoE configuration steps

                                      Your device that is hooked up to your cable/phoneline/Coax incoming wire should be put into pure "modem" mode. In that case it just 'translates' info from one line - the incoming connection, to packets that flow over an Ethernet cable to pfSense.
                                      This Ethernet cable should be put into the WAN interface. PPPOE should be activated on this WAN (pfSense)  interface, and you probably have to enter some credentials (logion + password : transmitted to you by your ISP - this same info is present now in your router device, so it can enable the conenction).

                                      Everything depends on the instructions given to you by your ISP (their support web site, FAQ, etc)  - you haven't said anything about that part, so we don't know nothing about that.

                                      No "help me" PM's please. Use the forum, the community will thank you.
                                      Edit : and where are the logs ??

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                                      • R
                                        rangarajan
                                        last edited by

                                        Dear Team

                                        i here by explaning the despite of making cable modem to bridge mode also am unable to get WAN ip details in pfsense

                                        whether i should configure ppp0e in cable modem or in pfsense firewall am not clea in this point

                                        |
                                                                                    cablemodem(192.168.1.251)
                                                                                      |
                                                                                  pfsense firewall(wan - 192.168.1.223) ,(lan - 192.168.2.1)
                                                                                      |
                                                                                    cisco switch (smart one)
                                                                                    |
                                                                                    pc (192.168.2.2)

                                        here am able to access the internet but issue is publi ip is not detected in wan interface of pfsense , here i have attached interface and other details in screenshots

                                        please help me

                                        20171220_105843.jpg
                                        20171220_105843.jpg_thumb
                                        20171220_105902.jpg
                                        20171220_105902.jpg_thumb

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                                        • GertjanG
                                          Gertjan
                                          last edited by

                                          IF your "cable modem" was really working in "modem" mode, it had no notion of "IP" (it's just transforming electric signals from one wire to another), and pfSene would actually have a 'real' WAN IP on it's WAN interface.
                                          But, right now, you are using DHCP-client on the WAN interface, which means it's asking for an IP. Somehow, a DHCP server is still running on your modem … and it gives a 'local' IP ( 192.168.1.251 ) to pfSEnse.

                                          Btw : the fact that you have a working Internet connection is a pretty solid prove that you have a router-after-router setup now. So your modem isn't functioning in "modem" mode at all.

                                          When I was using the box my ISP gave me, I had to put it in Modem or PPPOE mode. I had to chose pppoe mode on the WAN interface on pfSEnse, and enter a lgin and password, and I had a real WAN like "82.127.34.254" on the pfSense WAN interface.

                                          Why do you keep the DHCP-client activated on the WAN ? Is this per ISP instructions ?

                                          Today, with my new router that is hooked up to my VDSL phone line in front of pfSense has to be a router - "modem" mode isn't possible. A classic "router-after-router" setup.
                                          Not really a big deal for :
                                          he.net (for my IPv6) works.
                                          The DyNDNS service still works
                                          I have to double NAT for some IPv4 port, but I don't care, it works.

                                          Again : check out with your ISP how to change your device into a pure modem device - we can't help you with that.

                                          Edit: Removed link and merged the topics. Steve

                                          No "help me" PM's please. Use the forum, the community will thank you.
                                          Edit : and where are the logs ??

                                          1 Reply Last reply Reply Quote 0
                                          • R
                                            rangarajan
                                            last edited by

                                            Dear Team,

                                            i am able to access internet via pf sense firewall but only issue is public IP is not detected in wan interface of pf sense firewall despite of changing my cable modem to bridge mode also nothing worked .please help me in this

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