Netgate Discussion Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Search
    • Register
    • Login

    Cant access router when connected via PPTP

    Scheduled Pinned Locked Moved Firewalling
    19 Posts 3 Posters 4.5k Views
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • jimpJ Offline
      jimp Rebel Alliance Developer Netgate
      last edited by

      What is the default gateway of that router?

      You can probably work around that with an outbound NAT rule on the LAN side that translates traffic from the PPTP subnet going to that router's IP to the LAN interface address.

      Remember: Upvote with the ๐Ÿ‘ button for any user/post you find to be helpful, informative, or deserving of recognition!

      Need help fast? Netgate Global Support!

      Do not Chat/PM for help!

      1 Reply Last reply Reply Quote 0
      • L Offline
        luke240778
        last edited by

        Hey, the default gateway of that router is 192.168.10.1

        I have tried putting a firewall rule in but that didnt work.. i will try what you have suggested with the outbound NAT rule, but am not sure how to do this, when i read the options, it all sounds like another language..

        1 Reply Last reply Reply Quote 0
        • L Offline
          luke240778
          last edited by

          Can someone please help with this.. i have no idea why this isnt workng and i cant seem to get it working

          The router is on, and working..qhen i conect to my pfsense box via pptp i get 192.168.10.4 ip, my pfsense box is 192.168.10.1, which i can ping and connect to the gui, but the other wireless router is ip 192.168.10.2 (https) and i cant ping or connect to it.. it is the router running all my wisp clients, so is very important to be able to connect to it remotely.. Any ideas?

          1 Reply Last reply Reply Quote 0
          • jimpJ Offline
            jimp Rebel Alliance Developer Netgate
            last edited by

            Do a packet capture on LAN and watch for your pings to leave LAN and see what happens. Odds are that it leaves but doesn't come back. If that's the case, then there may not be much you can do. Since your PPTP clients are already in your LAN subnet, it wouldn't be a routing issue like I said before. Are you sure nothing else on your network is using that .4 IP? What exactly are the settings on your LAN interface and the PPTP setup?

            Remember: Upvote with the ๐Ÿ‘ button for any user/post you find to be helpful, informative, or deserving of recognition!

            Need help fast? Netgate Global Support!

            Do not Chat/PM for help!

            1 Reply Last reply Reply Quote 0
            • L Offline
              luke240778
              last edited by

              I should add, that whilst connected via PPTP i am able to logon to my clients Antenna's WebGUI, which are for example 192.168.10.227

              There isnt anything else using the .4 ip.ย  The settings pon my lan are Gateway 192.168.10.1 and DHCP 192.168.10.100-254

              The PPTP settings are: server address = 192.168.10.3 and remote address range = 192.168.10.4

              Whilst connected to the pfsense box via pptp, and i do a ping to the .2 address from the pfsense gui, it replies no problems..

              Packet capture a little difficult to understand cause of all the traffic going through the lan at the moment dues to wireless clients

              1 Reply Last reply Reply Quote 0
              • jimpJ Offline
                jimp Rebel Alliance Developer Netgate
                last edited by

                Filter the packet capture on the .4 IP then, should be easier to spot if you aren't doing anything else but hit the GUI of the firewall over PPTP.

                Remember: Upvote with the ๐Ÿ‘ button for any user/post you find to be helpful, informative, or deserving of recognition!

                Need help fast? Netgate Global Support!

                Do not Chat/PM for help!

                1 Reply Last reply Reply Quote 0
                • L Offline
                  luke240778
                  last edited by

                  Sorry, i dont really understand how i can do that? my laptop gets .4 when i connect via PPTP, but if i run a ping from the webgui arent i running it from that machine, which is the .1 ip?

                  How do i capture packets from my laptop to .2?

                  1 Reply Last reply Reply Quote 0
                  • jimpJ Offline
                    jimp Rebel Alliance Developer Netgate
                    last edited by

                    On the pfSense gui, go to Diagnostics > Packet capture. Run a capture there, on LAN, filtered on .4.

                    Then ping the router from the PPTP-connected system, then stop the capture, and see what you got.

                    Don't ping from the firewall's GUI

                    Remember: Upvote with the ๐Ÿ‘ button for any user/post you find to be helpful, informative, or deserving of recognition!

                    Need help fast? Netgate Global Support!

                    Do not Chat/PM for help!

                    1 Reply Last reply Reply Quote 0
                    • L Offline
                      luke240778
                      last edited by

                      Ok thanks. I first pinged 192.168.10.1 and 10.235 as i know these i can access, then i did 10.2, which i believe shows nothing in the packet capture:

                      21:22:21.146768 IP 192.168.10.4 > 192.168.10.235: ICMP echo request, id 1, seq 31, length 40
                      21:22:24.712641 ARP, Request who-has 192.168.10.4 tell 192.168.10.235, length 46
                      21:22:24.712659 ARP, Reply 192.168.10.4 is-at c8:3a:35:d2:53:cf, length 28
                      21:22:25.683589 ARP, Request who-has 192.168.10.4 tell 192.168.10.235, length 46
                      21:22:25.683607 ARP, Reply 192.168.10.4 is-at c8:3a:35:d2:53:cf, length 28
                      21:22:25.841092 IP 192.168.10.4 > 192.168.10.235: ICMP echo request, id 1, seq 32, length 40
                      21:22:26.683659 ARP, Request who-has 192.168.10.4 tell 192.168.10.235, length 46
                      21:22:26.683677 ARP, Reply 192.168.10.4 is-at c8:3a:35:d2:53:cf, length 28
                      21:22:29.351288 IP 192.168.10.235 > 192.168.10.4: ICMP echo reply, id 1, seq 32, length 40
                      21:22:29.354802 IP 192.168.10.235 > 192.168.10.4: ICMP echo reply, id 1, seq 32, length 40
                      21:22:29.371934 IP 192.168.10.235 > 192.168.10.4: ICMP echo reply, id 1, seq 32, length 40
                      21:22:29.675635 IP 192.168.10.4 > 192.168.10.235: ICMP echo request, id 1, seq 33, length 40
                      21:22:31.450664 IP 192.168.10.235 > 192.168.10.4: ICMP echo reply, id 1, seq 33, length 40
                      21:22:31.818773 IP 192.168.10.4 > 192.168.10.235: ICMP echo request, id 1, seq 34, length 40
                      21:22:32.597950 IP 192.168.10.235 > 192.168.10.4: ICMP echo reply, id 1, seq 34, length 40

                      1 Reply Last reply Reply Quote 0
                      • jimpJ Offline
                        jimp Rebel Alliance Developer Netgate
                        last edited by

                        If you never see the ping for .2 in the capture, that means it never left LAN. Either it never left the laptop, or it was blocked/misrouted somewhere along the way. Double check your firewall rules for pptp, firewall logs, etc.

                        Remember: Upvote with the ๐Ÿ‘ button for any user/post you find to be helpful, informative, or deserving of recognition!

                        Need help fast? Netgate Global Support!

                        Do not Chat/PM for help!

                        1 Reply Last reply Reply Quote 0
                        • L Offline
                          luke240778
                          last edited by

                          when i tried to ping .2 it just "request timed out"

                          I have no idea how to setup firewall rules.. shouldnt it just work seeing i can access the other devices on the same subnet? the antennas for example.. they are all in Wireless ISP mode, they are basically routers also

                          1 Reply Last reply Reply Quote 0
                          • jimpJ Offline
                            jimp Rebel Alliance Developer Netgate
                            last edited by

                            That depends on your rulesโ€ฆ For all we know, since you haven't said, there is a block rule on there or an incorrect rule to pass to it. Show a screenshot of your PPTP rules.

                            Remember: Upvote with the ๐Ÿ‘ button for any user/post you find to be helpful, informative, or deserving of recognition!

                            Need help fast? Netgate Global Support!

                            Do not Chat/PM for help!

                            1 Reply Last reply Reply Quote 0
                            • L Offline
                              luke240778
                              last edited by

                              Ok, here it is

                              pptprules.png
                              pptprules.png_thumb

                              1 Reply Last reply Reply Quote 0
                              • jimpJ Offline
                                jimp Rebel Alliance Developer Netgate
                                last edited by

                                That should be fine then. Though just for giggles, change the source to 'any' and see what happens.

                                Remember: Upvote with the ๐Ÿ‘ button for any user/post you find to be helpful, informative, or deserving of recognition!

                                Need help fast? Netgate Global Support!

                                Do not Chat/PM for help!

                                1 Reply Last reply Reply Quote 0
                                • L Offline
                                  luke240778
                                  last edited by

                                  Definately would have been nice if it was that simple!! but unfortunately that didnt work.. :)

                                  Should i change it back to PPTP or is any how it should be?

                                  I have no idea why i cant get to this stupid router!ย  Its GUI is https, thats not an issue is it?

                                  1 Reply Last reply Reply Quote 0
                                  • jimpJ Offline
                                    jimp Rebel Alliance Developer Netgate
                                    last edited by

                                    Only would be an issue if you can't access any other https items across the vpn, but a ping isn't going either.

                                    Somehow you need to determine if it's ever leaving the laptop and even trying to go over pptp. Try a traceroute to it.

                                    Remember: Upvote with the ๐Ÿ‘ button for any user/post you find to be helpful, informative, or deserving of recognition!

                                    Need help fast? Netgate Global Support!

                                    Do not Chat/PM for help!

                                    1 Reply Last reply Reply Quote 0
                                    • M Offline
                                      Metu69salemi
                                      last edited by

                                      Is this .2 in the same lan, so it's for sure in correct switch.
                                      is switch configs correct
                                      is the switch port functioning at all, even those can break down

                                      1 Reply Last reply Reply Quote 0
                                      • L Offline
                                        luke240778
                                        last edited by

                                        Yes it is, and from within the office i can get to it, just cant when connected via PPTP from my home.

                                        I also found out lastnight that i can't access it when i connect to another server via Teamviewer from home.. same problem.. all other devices with Webgui on the 192.168.10.0 subnet i can access.. just not this one in particular..

                                        1 Reply Last reply Reply Quote 0
                                        • First post
                                          Last post
                                        Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.