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    Problem with two lan networks and access to ap

    Scheduled Pinned Locked Moved General pfSense Questions
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    • stephenw10S
      stephenw10 Netgate Administrator
      last edited by

      Ok.
      Can you ping from the pfSense box to the AP? to a wireless client?
      Can you ping from the AP to the pfSense box or a wired client?

      I have a router I use as an access point that behaves exactly as yours is doing and the reason is that it has no route to get packets back to clients on the other subnet. The AP/router usually uses it's WAN port for anything that isn't in its LAN subnet but in this scenario it has no WAN so it has no route. I have successfully worked around this by setting a subnet mask on the AP that contains all the local subnets, i.e. /16 However I have an AP this doesn't work for.
      That doesn't explain why it worked fine under 2.0.3 though.  :-\

      Steve

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      • F
        firefox
        last edited by

        from pfsense to AP - There is Ping
        from pfsense to wireless client - no ping
        from AP to pfsense - no ping
        from AP to wired client - no ping

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        • P
          phil.davis
          last edited by

          from pfsense to AP - There is Ping

          That would go out from 192.168.2.1 on pfSense directly to the AP. So pfSense OPT1 and the AP have compatible (hopefully the same) subnets.

          from AP to pfsense - no ping

          I guess that was from AP, ping 192.168.1.1 - the pfSense LAN IP. In that case the AP probably does not know how to route to that. If you tried to ping 192.168.2.1 then that is good, but you will need to have added a pass rule on OPT1 after booting the LiveCD version.

          I can't understand what has happened here - the symptoms look a lot like an AP subnet/mask/default gateway problem. But it is pfSense that has been upgraded - so what is the real cause of the problem???

          Can you post the actual AP:

          • IP address
          • network mask
          • default gateway for LAN (or tell us that there is no setting for that)

          and confirm that OPT1 is 192.168.2.1/24 and has a pass rule with source any (or OPT1 net).

          As the Greek philosopher Isosceles used to say, "There are 3 sides to every triangle."
          If I helped you, then help someone else - buy someone a gift from the INF catalog http://secure.inf.org/gifts/usd/

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          • F
            firefox
            last edited by

            Few answers

            Interfaces configured so

            Wired network 192.168.0.1/24      –----> go to Switch          dhcp on pfsense 192.168.0.30 -- 100

            Wireless Network 192.168.2.1/24  ------> go to AP                dhcp on pfsense 192.168.2.30 -- 100

            AP Fixed address  192.168.2.101

            ping from pfsense 192.168.0.1 to AP 192.168.2.1 There is Ping

            ping from AP 192.168.2.1 to pfsense 192.168.0.1 no ping

            OPT1 = WIFI = 192.168.2.1/24

            Here are screen shots of the management interface of the AP

            1.png_thumb
            1.png

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            • F
              firefox
              last edited by

              MORE

              2.png
              2.png_thumb
              3.png
              3.png_thumb

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              • D
                doktornotor Banned
                last edited by

                Afraid your WAN should be set to Disabled, not Dynamic IP Address.

                1 Reply Last reply Reply Quote 0
                • K
                  kejianshi
                  last edited by

                  Totally not a pfsense problem.  Did you get it working yet?

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                  • P
                    phil.davis
                    last edited by

                    I can't see where it lets you specify

                    1. the LAN netmask (/24 or 255.255.255.0)
                    2. a LAN gateway

                    Probably (1) is on a screen somewhere - maybe I missed it.
                    I suspect it won't have a place to enter (2), because it thinks it is already a router (gateway).

                    As the Greek philosopher Isosceles used to say, "There are 3 sides to every triangle."
                    If I helped you, then help someone else - buy someone a gift from the INF catalog http://secure.inf.org/gifts/usd/

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                    • F
                      firefox
                      last edited by

                      @kejianshi:

                      Totally not a pfsense problem.  Did you get it working yet?

                      not yet

                      @doktornotor:

                      Afraid your WAN should be set to Disabled, not Dynamic IP Address.

                      Selecting other options
                      And there is no communication

                      @phil.davis:

                      I can't see where it lets you specify

                      1. the LAN netmask (/24 or 255.255.255.0)
                      2. a LAN gateway

                      Probably (1) is on a screen somewhere - maybe I missed it.
                      I suspect it won't have a place to enter (2), because it thinks it is already a router (gateway).

                      As soon as I turn off the dhcp
                      And gave him a fixed network address
                      the LAN netmask
                      and LAN gateway
                      are from the pfsense

                      I will try to run pfsense live cd 2.0.3

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                      • D
                        doktornotor Banned
                        last edited by

                        @firefox:

                        Selecting other options
                        And there is no communication

                        Huh, whut?

                        @firefox:

                        As soon as I turn off the dhcp
                        And gave him a fixed network address
                        the LAN netmask
                        and LAN gateway
                        are from the pfsense

                        Eh? There is no netmask and gateway visible anywhere…

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                        • F
                          firefox
                          last edited by

                          @doktornotor:

                          @firefox:

                          Selecting other options
                          And there is no communication

                          Huh, whut?

                          If I choose another option
                          I will not have internet access

                          @firefox:

                          As soon as I turn off the dhcp
                          And gave him a fixed network address
                          the LAN netmask
                          and LAN gateway
                          are from the pfsense

                          Eh? There is no netmask and gateway visible anywhere…

                          there is on pfsense

                          1 Reply Last reply Reply Quote 0
                          • stephenw10S
                            stephenw10 Netgate Administrator
                            last edited by

                            @firefox:

                            ping from pfsense 192.168.0.1 to AP 192.168.2.1 There is Ping

                            ping from AP 192.168.2.1 to pfsense 192.168.0.1 no ping

                            I assume this must be a typo and the ping was to the AP at 192.168.2.101?

                            You need to try pinging from the AP to the pfSense OPT1 address, 192.168.2.1. That should work fine.

                            @firefox:

                            from pfsense to wireless client - no ping

                            That's odd. The problems with the AP should not cause this. Presumably AP to wireless client is OK?

                            Steve

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                            • stephenw10S
                              stephenw10 Netgate Administrator
                              last edited by

                              Reading the manual for that router (wbr-3406tx) it appears there's no way to set a subnet mask or gateway for the LAN interface but it's not a problem because you can add a route manually. Adding a route is the correct way to do this, fudging the subnet is a workaround.

                              In Advanced Setting: Routing: add this:

                              Destination: 192.168.0.1
                              Subnet mask: 255.255.255.0
                              Gateway: 192.168.2.1
                              Hop: 1

                              Enable that and hit save. Your AP will now have a route back to the pfSense LAN subnet.

                              Steve

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                              • D
                                doktornotor Banned
                                last edited by

                                @firefox:

                                If I choose another option
                                I will not have internet access

                                The only correct option is Disable/None/whatever matching this… Not any random other option.

                                @firefox:

                                there is on pfsense

                                That is NOT what we are talking about at all. We are talking about netmask/GW on the AP. And on that note, there should be no gateway set for LAN interfaces on pfSense!

                                @stephenw10:

                                Reading the manual for that router (wbr-3406tx) it appears there's no way to set a subnet mask or gateway for the LAN interface but it's not a problem because you can add a route manually

                                Apparently this piece of garbage HW would best be utilized in a dumpster.

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                                • K
                                  kejianshi
                                  last edited by

                                  I'm withholding judgement on the usefullness of this device as an AP until stephenw10 suggestion is tried.

                                  Even if the router/AP doesn't end up being as slick as some other APs, I do see some usefullnes in it.
                                  It is currently isolated from the LAN, so for sharing internet to visitors, it might be cool and secure (-:

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                                  • F
                                    firefox
                                    last edited by

                                    @stephenw10:

                                    @firefox:

                                    ping from pfsense 192.168.0.1 to AP 192.168.2.1 There is Ping

                                    ping from AP 192.168.2.1 to pfsense 192.168.0.1 no ping

                                    I assume this must be a typo and the ping was to the AP at 192.168.2.101?

                                    You need to try pinging from the AP to the pfSense OPT1 address, 192.168.2.1. That should work fine.

                                    @firefox:

                                    from pfsense to wireless client - no ping

                                    That's odd. The problems with the AP should not cause this. Presumably AP to wireless client is OK?

                                    Steve

                                    it is a typo my bad

                                    i try ping from 192.168.2.101 to 192.168.2.1 and there is a ping

                                    @stephenw10:

                                    Reading the manual for that router (wbr-3406tx) it appears there's no way to set a subnet mask or gateway for the LAN interface but it's not a problem because you can add a route manually. Adding a route is the correct way to do this, fudging the subnet is a workaround.

                                    In Advanced Setting: Routing: add this:

                                    Destination: 192.168.0.1
                                    Subnet mask: 255.255.255.0
                                    Gateway: 192.168.2.1
                                    Hop: 1

                                    Enable that and hit save. Your AP will now have a route back to the pfSense LAN subnet.

                                    Steve

                                    I tried to change and nothing worked
                                    I had to do hard Reset
                                    And configure it as before

                                    @doktornotor:

                                    @firefox:

                                    If I choose another option
                                    I will not have internet access

                                    The only correct option is Disable/None/whatever matching this… Not any random other option.

                                    @firefox:

                                    there is on pfsense

                                    That is NOT what we are talking about at all. We are talking about netmask/GW on the AP. And on that note, there should be no gateway set for LAN interfaces on pfSense!

                                    @stephenw10:

                                    Reading the manual for that router (wbr-3406tx) it appears there's no way to set a subnet mask or gateway for the LAN interface but it's not a problem because you can add a route manually

                                    Apparently this piece of garbage HW would best be utilized in a dumpster.

                                    There is no option disable

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                                    • K
                                      kejianshi
                                      last edited by

                                      Getting a E1000 linksys is crazy cheap on ebay.

                                      When loaded with DD-WRT they will do every thing you want and more, just incase this doesn't pan out for you.

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                                      • F
                                        firefox
                                        last edited by

                                        @kejianshi:

                                        Getting a E1000 linksys is crazy cheap on ebay.

                                        When loaded with DD-WRT they will do every thing you want and more, just incase this doesn't pan out for you.

                                        My cousin did not need it
                                        So brought it to me

                                        If I had to buy
                                        Would you buy something much better

                                        On that note
                                        I'm dead tired
                                        I will continue with this tomorrow

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                                        • K
                                          kejianshi
                                          last edited by

                                          "If I had to buy
                                          Would you buy something much better"

                                          For your purposes, its hard to do much better - Easy to spend much more money though.
                                          If I wanted wireless N vs G, I'd go with the E2000 - Also dirt cheap used.

                                          A new solution will probably not bring you any more practical utility and will cost you.

                                          1 Reply Last reply Reply Quote 0
                                          • stephenw10S
                                            stephenw10 Netgate Administrator
                                            last edited by

                                            Hmm, this is interesting but confusing.

                                            It is possible that it's only possible to add static routes on the WAN interface, there is no option to select the interface. However if that were the case then adding that route should have had no effect at all. I assume by your statement "nothing worked" that you were then unable to connect to the webgui at all? Seems like your router may be misbehaving somehow.

                                            Anyway you have yet more options! Another way to allow the access point to have a route back to LAN is to NAT between them. Now usually you wouldn't want that but it could be done with manual NAT configuation.

                                            The other thing you could do, and this is what I've done, is just not worry about it!  ;) I have an access point that (mis)behaves in exactly this way. It has no route back to other interfaces, I cannot add a route to it, I cannot configure a gateway on it's LAN, I can enter a fudged subnet mask but that doesn't work. So I set it up and ignore it. I probably haven't needed to check its webgui for a year or so and when I do I just connect by wifi.

                                            Steve

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