4. I can't get Captive Portal login page in any browser else Firefox

I can't get Captive Portal login page in any browser else Firefox

  • C

    Why I can’t get  Captive Portal login page in any browser else Firefox…
    When client try to use the internet throw Chrome or Internet Explorer browsers he can’t get the  Captive Portal login page, but if he try to use firefox, it works fine and get the login page …?
    What is the problem?

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  • Hi,

    Browser are all the same. Their settings, not.
    pfSense works with all browsers.

    Did you flushed the browser’s cache ? No Proxy activated ?

    More help is possible as soon as you start to give more info. From ‘here’, I can’t see what’s up.

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  • C

    Thank you ‘Gertjan’ for replying, what’s is the information which can help in that?
    There is not proxy and also I flushed the broweser’s cache…
    only firefox show the login page but chrome and internet explorer not
    I take a look on internet options in the client side all settings are default  …

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  • Check your default home page in your browsers.
    If it’s a hpps:// make it http://…. example : http://www.google.com

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  • K

    The auto-redirect in captive portal doesn’t work if the default page that the browser tries to open is a https one.

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  • J

    I have similar problem.  IE does redirect to the CP Login page.

    I have a http site as default home page but still does not work.

    I am testing with IE 8.0 on Windows 2003 Server DC.  I even did a Reset to Factory and selected recommended default settings.

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  • @jetberrocal:

    ….
    I am testing with IE 8.0 on Windows 2003 Server DC.  I even did a Reset to Factory and selected recommended default settings.

    A browser on a server edition doesn’t “eat” a captive portal like that (mine, on a 2008 R2 did finally, but had to fiddle my OS somewhat - don’t recall very wel).
    Use a vanilla OS like … well, any OS with their navigators except “servers”.

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  • Netgate

    Eliminate DNS and HTTPS as the problem by trying to open http://10.10.10.10/ in the browsers that will not connect.

    This could be something like STS making http connections nearly impossible to originate from those browsers to those sites.

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  • J

    @Derelict:

    Eliminate DNS and HTTPS as the problem by trying to open http://10.10.10.10/ in the browsers that will not connect.

    This could be something like STS making http connections nearly impossible to originate from those browsers to those sites.

    I do not know what is STS, but tried that address on the Server but still did not got the CP Login redirection.

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  • J

    @Gertjan:

    @jetberrocal:

    ….
    I am testing with IE 8.0 on Windows 2003 Server DC.  I even did a Reset to Factory and selected recommended default settings.

    A browser on a server edition doesn’t “eat” a captive portal like that (mine, on a 2008 R2 did finally, but had to fiddle my OS somewhat - don’t recall very wel).
    Use a vanilla OS like … well, any OS with their navigators except “servers”.

    Tried with a Win 7.  I get the CP Login redirection but is not displayed, instead gives me a “Diagnose Connection Problems” error page.  The address bar clearly shows the CP Login address.

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  • @jetberrocal:

    Tried with a Win 7.  I get the CP Login redirection but is not displayed, instead gives me a “Diagnose Connection Problems” error page.  The address bar clearly shows the CP Login address.

    At that moment, was was your IP address of the Win 7 PC  ? Who gave it to you (was it pfSEnse who gave it - check wth the pfSense DHCP Lease list and log)
    What is the gateway IP ? (THis IP should be the one that pfSene uses as the Captive portal).
    What is / are your DNS ?

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  • J

    The WEin 7 PC is a Domain attached computer. The Domain Controller is DC/DNS/DHCP Server.  The PC IP is given by the DC.  The gateway IP is the pfsense server IP.
    Pfsense DNS is on default configuration.  When CP is off the PC gets the DNS resolution from the DC succesfully. The DC gets the DNS resolution from pfsense also.  I made the IP and the name of the pfsense server an Allowed IP/Host in CP.

    Some times Chrome does not redirect either when openned.  I have to write in the address bar the http address manually to trigger the CP redirection.  I guess that is because chrome tries to get the home page from its cache.

    Some time IE redirects to CP Login, but after login it fails with a no connection error.

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  • @jetberrocal:

    The WEin 7 PC is a Domain attached computer. The Domain Controller is DC/DNS/DHCP Server.  The PC IP is given by the DC. ……

    Domain what where ???

    From what I made of it when pfSEnse + Captive portal was made :
    An interface (NIC) on which the captive portal is running.
    A wire from this NIC to a switch.
    This switch goes to wall-mounted RJ45 plugs (back then, some devices didn’t have Wifi build in !) and a bunch of Access Points (wire to radio devices).
    My visitors bring allong there PC / Pad / Phone / whatever (a basic BJOD).

    Example : by a NEW Dell portable - Phone or whatever. Unwrap it. Connect to the Wifi network. pfSense portal kick in - and it works.

    Now, back to your ‘domain’ (from Microsoft ?) PC. This isn’t a typical BJODevice ……

    Do de test yourself : Your smartphone - the AP and your pfSense portal => That works …

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  • J

    I am currently in testing.  I have a Virtual network of DC and PC in LAN side and pfsense VM with fixed IP on LAN side and WAN DHCP assigned IP.  CP listens in LAN interface. DC (Windows 2003 server) has Firefox, Chrome, and IE 8.0 browsers, PC (Win 7) has Chrome and IE 8.0 browsers.  There are no wifi clients.

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  • J

    Notice that now, when CP Login is shown successfully, after doing the Login the PC fails to ping external sites (www.google.com) like being blocked.  I checked the CP status and the MAC address of the PC is registered successfully and active. So it should not be blocked.

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  • @jetberrocal:

    Notice that now, when CP Login is shown successfully, after doing the Login the PC fails to ping external sites (www.google.com) like being blocked.  I checked the CP status and the MAC address of the PC is registered successfully and active. So it should not be blocked.

    Your portal interface is on an interface - probably named initially OPTx.

    Please list the firewall rules (see GUI this time !) and gives us YOUR rules for this interface.
    Remember : by default, LAN has ONE rule : let all pass. By default, all other interfacse have ONE hidden rule (the list will be empty) : BLOCK ALL.
    Do you let in ICMP ? (“in” because it’s from the point of view of the interface).

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  • J

    I do not have OPT interfaces, only LAN and WAN.  I think ICMP is allowed.  When I have CP off I can ping from inside to outside successfully.  With CP on I can ping the pfsense LAN IP.




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  • J

    I notice that I can ping the site which triggered the CP Login not other.

    Example. 
    I Open browser (Chrome).  The home page fails to load and does not trigger the CP Login.
    I write in the address bar a http address (http://www.jetsystemservices.com).  The CP Login is triggered. 
    I login successfully and the site is shown.  (External links in the site fails, youtube links)
    I go the command prompt in the browser computer and I can ping the www.jetsystemservices.com site. But I cannot ping other address.

    It is like CP only allows one address at a time instead of opening all internet.

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  • @jetberrocal:

    ….
    I Open browser (Chrome).  The home page fails to load and does not trigger the CP Login.

    Is this the locally build page that doesn’t need any ‘internet’ access -
    or
    is this a page like http://www.google.com (and NOT https://www.google.com !!! ) that comes from the net ?

    @jetberrocal:

    ….
    I write in the address bar a http address (http://www.jetsystemservices.com).  The CP Login is triggered.

    Great !

    @jetberrocal:

    ….I login successfully and the site is shown.  (External links in the site fails, youtube links)

    at that moment, go here https://doc.pfsense.org/index.php/Captive_Portal_Troubleshooting
    and list us your ipfw rules and tables (what IN these tables)

    also, at that moment:
    open command prompt
    and
    ping www.yutoube.com

    The URL is resolved ?
    The ping replies ? (youtube.com might decide not to reply, that’s ok)

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  • J

    The home page is http://www.google.com

    Ping to www.youtube.com does not resolve.

    ipfw execution:

    ipfw zone list
    Currently defined contexts and their members:
    2: em1,

    ipfw -x 2 table all list
    –-table(1)—
    192.168.56.100/32 mac 08:00:27:e8:c0:b4 2090
    —table(2)—
    192.168.56.100/32 mac 08:00:27:e8:c0:b4 2091
    —table(3)—
    192.168.56.1/32 2032
    —table(4)—
    192.168.56.1/32 2033
    —table(100)—
    192.168.56.1/32 0

    ipfw -x 2 show
    65291    0      0 allow pfsync from any to any
    65292    0      0 allow carp from any to any
    65301  99  3978 allow ip from any to any layer2 mac-type 0x0806,0x8035
    65302    0      0 allow ip from any to any layer2 mac-type 0x888e,0x88c7
    65303    0      0 allow ip from any to any layer2 mac-type 0x8863,0x8864
    65307    0      0 deny ip from any to any layer2 not mac-type 0x0800,0x86dd
    65310 2320 166643 allow ip from any to table(100) in
    65311 2242 298979 allow ip from table(100) to any out
    65312    4  1312 allow ip from any to 255.255.255.255 in
    65313    0      0 allow ip from 255.255.255.255 to any out
    65314    0      0 pipe tablearg ip from table(3) to any in
    65315    0      0 pipe tablearg ip from any to table(4) in
    65316    0      0 pipe tablearg ip from table(3) to any out
    65317    0      0 pipe tablearg ip from any to table(4) out
    65318  671 180692 pipe tablearg ip from table(1) to any in
    65319  86  16287 pipe tablearg ip from any to table(2) out
    65531 1696  82569 fwd 127.0.0.1,8003 tcp from any to any dst-port 443 in
    65532 1927 136541 fwd 127.0.0.1,8002 tcp from any to any dst-port 80 in
    65533 2939 379068 allow tcp from any to any out
    65534 3112 348052 deny ip from any to any
    65535    2    955 allow ip from any to any

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  • J

    Now I think got worst.

    I reinstall pfsense 2.3.1 amd64 from cero, even format the HD to make sure no files remained.  Did not install any package. I set the LAN IP static, WAN IP takes IP from Cable modem DHCP.  I turn off DHCP on LAN interface as the LAN side takes the IPs from the Windows Domain DHCP server.

    Added CP zone, with Local Authentication.  HTTPS Login unchecked.  Added the pfsense IP at Allowed IP Addresses.

    The Win7 computer access internet as if CP is turn off, is not blocked.

    Shell Output - ipfw -x 2 show

    65291  0      0 allow pfsync from any to any
    65292  0      0 allow carp from any to any
    65301  20    776 allow ip from any to any layer2 mac-type 0x0806,0x8035
    65302  0      0 allow ip from any to any layer2 mac-type 0x888e,0x88c7
    65303  0      0 allow ip from any to any layer2 mac-type 0x8863,0x8864
    65307  0      0 deny ip from any to any layer2 not mac-type 0x0800,0x86dd
    65310 131  17105 allow ip from any to table(100) in
    65311 155  88607 allow ip from table(100) to any out
    65312  0      0 allow ip from any to 255.255.255.255 in
    65313  0      0 allow ip from 255.255.255.255 to any out
    65314 582  80166 pipe tablearg ip from table(3) to any in
    65315  0      0 pipe tablearg ip from any to table(4) in
    65316  0      0 pipe tablearg ip from table(3) to any out
    65317 672 429906 pipe tablearg ip from any to table(4) out
    65318  0      0 pipe tablearg ip from table(1) to any in
    65319  0      0 pipe tablearg ip from any to table(2) out
    65532  0      0 fwd 127.0.0.1,8002 tcp from any to any dst-port 80 in
    65533  0      0 allow tcp from any to any out
    65534  0      0 deny ip from any to any
    65535  0      0 allow ip from any to any

    Shell Output - ipfw -x 2 table all list

    –-table(3)—
    192.168.56.0/24 2000
    —table(4)—
    192.168.56.0/24 2001
    —table(100)—
    192.168.56.1/32 0

    Note: the pfsense IP is 192.168.56.1/24, don’t know why table(100) has 192.168.56.1/32

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  • @jetberrocal:

    ……
    … I turn off DHCP on LAN interface as the LAN side takes the IPs from the Windows Domain DHCP server.
    …

    Added CP zone, …

    STOP.
    While you set up your portal settings, read the foot note.

    https://forum.pfsense.org/index.php?topic=111737.msg632639#msg632639

    ( => case solved 😉 )

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  • J

    @Gertjan:

    @jetberrocal:

    ……
    … I turn off DHCP on LAN interface as the LAN side takes the IPs from the Windows Domain DHCP server.
    …

    Added CP zone, …

    STOP.
    While you set up your portal settings, read the foot note.

    https://forum.pfsense.org/index.php?topic=111737.msg632639#msg632639

    ( => case solved 😉 )

    OK.  I though that there was a posible work around.

    Not being the case, for my needs CP in pfsense is not a viable solution.  In my case as many others, DHCP and primary DNS must be kept on the Windows Domain Controller.

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  • S

    DHCP Relay (and keeping DNS to DC) is not an option?

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  • J

    @skron:

    DHCP Relay (and keeping DNS to DC) is not an option?

    How will I use DHCP Relay?

    My DHCP (DC/DNS) server IP is 192.168.56.10 (static, 255.255.255.0)
    My pfsense IP is 192.168.56.1 (static, 255.255.255.0) in LAN side, WAN is DHCP assign from cable modem. I do not have any other interface.

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  • J

    It happens that I have a client that has a Win Server with AD/DNS but without DHCP because it has a Wifi Router that is doing the DHCP Server role.

    So I can turn on DHCP on pfsense and configure the router to use the pfsense’s dhcp.

    How should I configure the pfsense dhcp to register addresses in the AD/DNS?

    Once I get this dhcp running I can turn on CP in pfsense

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  • Netgate

    No idea why you wouldn’t just use Windows DHCP in that case.

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  • J

    @Derelict:

    No idea why you wouldn’t just use Windows DHCP in that case.

    I tried Captive Portal with DHCP in the AD, but it did not work.  Also in this thread was directed to the note referred by Gertjan on: June 21, 2016, 04:55:46 am , implying that DHCP must be done by pfsense as CP works correctly.

    It was suggested to use DHCP relay but I do not how could I use that for this situation.

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  • J

    OH! Still does not work.

    I turn dhcp off in the AD server and turn on dhcp on pfsense.  The PC aquired the IP succesfully as can be seen on the dhcp leases in pfsense.

    But chrome does not call the CP login page.

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  • Netgate

    Is the AD DHCP server in the same subnet as your clients? If not you will have to use DHCP relay to get there and put the proper scope in the DHCP Server.

    What happens if you go to http://10.10.10.10/ in chrome?

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  • J

    My network is really simple.

    My LAN is 192.168.56.x, 255.255.255.0
    AD has static IP 192.168.56.10
    pfsense has static IP 192.168.56.1
    DHCP server sets:
    from 192.168.56.100 to 192.168.56.254
    DNS = 192.168.56.10
    Gateway = 192.168.56.1

    WAN is DHCP assigned by the Cable modem

    Trying http://10.10.10.10 gives me “took too long to respond” error

    ipfw zone list
    Currently defined contexts and their members:
    2: em1,

    Shell Output - ipfw -x 2 show

    65291    0      0 allow pfsync from any to any
    65292    0      0 allow carp from any to any
    65301  66  2424 allow ip from any to any layer2 mac-type 0x0806,0x8035
    65302    0      0 allow ip from any to any layer2 mac-type 0x888e,0x88c7
    65303    0      0 allow ip from any to any layer2 mac-type 0x8863,0x8864
    65307    0      0 deny ip from any to any layer2 not mac-type 0x0800,0x86dd
    65310 1569 143858 allow ip from any to table(100) in
    65311 1456 434214 allow ip from table(100) to any out
    65312  13  4327 allow ip from any to 255.255.255.255 in
    65313    0      0 allow ip from 255.255.255.255 to any out
    65314    0      0 pipe tablearg ip from table(3) to any in
    65315    0      0 pipe tablearg ip from any to table(4) in
    65316    0      0 pipe tablearg ip from table(3) to any out
    65317    0      0 pipe tablearg ip from any to table(4) out
    65318  878 108115 pipe tablearg ip from table(1) to any in
    65319  858 899391 pipe tablearg ip from any to table(2) out
    65532  282  14933 fwd 127.0.0.1,8002 tcp from any to any dst-port 80 in
    65533  223  25436 allow tcp from any to any out
    65534 2141 218858 deny ip from any to any
    65535    0      0 allow ip from any to any

    Shell Output - ipfw -x 2 table all list

    –-table(1)—
    192.168.56.100/32 mac 08:00:27:e8:c0:b4 2002
    —table(2)—
    192.168.56.100/32 mac 08:00:27:e8:c0:b4 2003
    —table(100)—
    192.168.56.1/32 0

    Note: The table(100) has 192.168.56.1/32 instead of /24. I have not added any Allow IP nor Allow Host at the zone.

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  • @jetberrocal:

    Note: The table(100) has 192.168.56.1/32 instead of /24. I have not added any Allow IP nor Allow Host at the zone.

    Table 100 contains the IP of the Captive Portal NIC.

    @jetberrocal:

    My network is really simple.

    My LAN is 192.168.56.x, 255.255.255.0
    AD has static IP 192.168.56.10
    pfsense has static IP 192.168.56.1
    DHCP server sets:
    from 192.168.56.100 to 192.168.56.254
    DNS = 192.168.56.10
    Gateway = 192.168.56.1

    Ok.
    and what are these setting on the device that you used to :
    @jetberrocal:

    Trying http://10.10.10.10 gives me “took too long to respond” error

    Who is this IP :
    @jetberrocal:

    –-table(1)—
    192.168.56.100/32 mac 08:00:27:e8:c0:b4 2002
    —table(2)—
    192.168.56.100/32 mac 08:00:27:e8:c0:b4 2003
    —table(100)—
    192.168.56.1/32 0

    ?
    Table 1 and 2 contain the “logged in users” - so “192.168.56.100” has been logged in successfully.

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  • J

    The device I am using for testing is a Win 7 Pro attached to the AD, that is assign an IP by the DHCP.  Since is only one the IP assigned is the first DHCP assign value which is 192.168.56.100.

    The test device using Chrome sometimes shows the CP Login page and I can logging successfully.  Thus the table shows in this occasion the device MACs.

    BUT after successful login, the trigger page is shown, but no other page.  The network is broken as if the login were unsuccessful but worst because the CP no longer is trigger.  (I close the browser, and remove/delete the line from the CP status in Diagnostics)

    I cant ping any Internet address not even resolve the addresses.

    I thought this was because the DHCP server was in the AD and not the pfsense, but I turn off the dhcp in the AD and activated the dhcp in pfsense and still have the same bad behavior.

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  • Consider this : if you address your browser to the right pace (the captive portal IP address) you should see the login page.
    A DHCP server gives more as a IP address for a client-device.
    It also hands over the gateway (and a DNS, etc), which should be pfSense, and not some other IP.

    First the gateway is inaccessible, but a browser startup up will be ‘captured’ by the portal interface. Authentication will make the firewall in front of the portal transparent, and of you go …

    What is the gateway that your server offers to its clients ?
    What is the gateway your clients are using ?

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  • J

    @Gertjan:

    Consider this : if you address your browser to the right pace (the captive portal IP address) you should see the login page.
    A DHCP server gives more as a IP address for a client-device.
    It also hands over the gateway (and a DNS, etc), which should be pfSense, and not some other IP.

    First the gateway is inaccessible, but a browser startup up will be ‘captured’ by the portal interface. Authentication will make the firewall in front of the portal transparent, and of you go …

    What is the gateway that your server offers to its clients ?
    What is the gateway your clients are using ?

    Gateway = 192.168.56.1 (Set by DHCP clients, Set manually for static clients)
    DNS = 192.168.56.10 (Set by DHCP, , Set manually for static clients)
    pfsense = 192.168.56.1 (see attach png for pfsense dashboard)

    ipconfig output:
    Ethernet adapter Local Area Connection:

    Connection-specific DNS Suffix  . : jetdom.local
      Description . . . . . . . . . . . : Intel® PRO/1000 MT Desktop Adapter
      Physical Address. . . . . . . . . : 08-00-27-E8-C0-B4
      DHCP Enabled. . . . . . . . . . . : Yes
      Autoconfiguration Enabled . . . . : Yes
      Link-local IPv6 Address . . . . . : fe80::9990:1817:5cc5:4efb%11(Preferred)
      IPv4 Address. . . . . . . . . . . : 192.168.56.100(Preferred)
      Subnet Mask . . . . . . . . . . . : 255.255.255.0
      Lease Obtained. . . . . . . . . . : Monday, June 27, 2016 11:39:45 AM
      Lease Expires . . . . . . . . . . : Tuesday, June 28, 2016 8:00:03 PM
      Default Gateway . . . . . . . . . : 192.168.56.1
      DHCP Server . . . . . . . . . . . : 192.168.56.1
      DHCPv6 IAID . . . . . . . . . . . : 235405351
      DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1C-8B-C6-D4-08-00-27-E8-C0-B4

    DNS Servers . . . . . . . . . . . : 192.168.56.10
      NetBIOS over Tcpip. . . . . . . . : Enabled


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  • Humm.
    Can’t find anything wrong.

    When your “192.168.56.100” is logged in - you can check that using the pfSEnse GUI Captive portal Satuts page - or inspecting table ‘100’ using the ipfw show …. test - the barrier “capive-portal-pfsense” will be inexistent for that device (“192.168.56.100”) - it’s like the captive portal has been shut down for this device.
    So : my question is : if you shut down the portal function, does the ‘internet’ access work ?

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  • J

    I turn off the zone, and the Internet access started to work.

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  • J

    To clarify.  The pfsense IP is 192.168.56.1/24, but CP table(100) is register with 192.168.56.1/32.  I dont know why /32.

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  • @jetberrocal:

    To clarify.  The pfsense IP is 192.168.56.1/24,

    pfSense has an IP on it’s LAN - it is 192.168.56.1 (or written as 192.168.56.1/32 😉 )

    @jetberrocal:

    but CP table(100) is register with 192.168.56.1/32.  I dont know why /32.

    It means : This IP only - because the mask is ‘32’

    edit : change the IPv4 firewall rule : remove the source (LAN net) and make it “all”

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  • J

    Why pfsense  IP is written as 192.168.56.1/32 when the LAN Interface is setup as 192.168.56.1/24

    I can’t select /32 when setting the interface.

    I only have the default firewall rules.  You mean to change the IP4 default rule?
    What would be the implication?


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