Unable to start captive portal interface

[applehacker321]

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Read the wiki?

No*

Do you want to request a feature or report a bug?

Bug

What is the current behaviour?

I am using RT5370n WiFi chipset, have also tried Other interface such as the TLWN722N, but still couldn’t get the captive portal interface to work. The program output: “Unable to start captive portal interface” Then returns to menu. I am using fluxion 3.11 (the latest version), with Ubuntu Mate 16.04.02.

If the current behaviour is a bug, please provide the steps to reproduce it.

What do you think the expected behaviour should be?

If this is a feature request, what is the motivation or use case for the added feature?

Specs

Paste the output of ./script/diagnostics.sh [interface]

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[applehacker321]

Forgot to mention, I have already captured a validated handshake

[MPX4132]

It seems your device's driver might not support virtual interfaces. You're going to have to check yourself whether the driver supports virtual interfaces or not following this guide. I'm going to close this issue because virtual interface support isn't an issue with fluxion, but an issue with your driver. You can continue to reply here to let us know what you find out. Again, it seems the issue isn't related to fluxion. If you can prove me wrong, and determine it's an issue with fluxion, we can reopen the issue.

[victor-ab]

@MPX4132 getting this same problem. Fluxion worked flawlessly 1 month ago on kali, now i've tried it on my ubuntu and got this error. Can't be driver problem. Can it?

[MPX4132]

Wait, so it was working fine before? Yeah, that sounds fishy. Do you by any chance know if there's been an update to the driver you guys are using?

[MPX4132]

It could also be the network-manager being overly aggressive.

[victor-ab]

@MPX4132 I managed to find the difference on the drivers, on my ubuntu, the version is the driverversion=4.10.0-42-generic and on my kali, which is the one working: driverversion=4.9.0-kali3-amd64

How can i copy the kali driver to my ubuntu? I did a lot of research with no luck.

[MPX4132]

@underscrew I don't know how to swap or setup drivers, sorry man. Someone else might be able to help, though. From what I read, you'll have to compile the driver yourself because apparently they're kernel specific (binary-specific).

[Aoki07]

Hello , i have a problem in the second step in fluxion for to create a "captive portal " this message appears when I select my wifi card : ] Select an interface for the access point.

[1] eth0 [+] Intel Corporation 8254EM Gigabite Ethernet Controller(rev [2] wlan0 [+] TP-Link TL-WN722N v2 [3] Repeat [4] Back

[fluxion2@kali]-[~] 2

[*] Unable to start captive portal interface, returning!

can someone Help please?

[AnhDQHE181109]

@Aoki07 you need to make the adapter run in concurrent mode, I used to face that problem but after enabling concurrent mode, it went fine

[Aoki07]

Hello @Quang-vip thanks for your answer , can you explain me how can do this?

[AnhDQHE181109]

@Aoki07 first you need to clone this repository: https://github.com/aircrack-ng/rtl8188eus then open up include/autoconf.h

look for //#define CONFIG_CONCURRENT_MODE and uncomment it by removing the double forward slash after that, build the driver then install it

restart your machine (that's what I usually do, you could hot-remove the driver then hot-insert it so you don't need to restart your machine) run ip a and you should be able to see 2 wireless interfaces (apart from the built-in one if your machine has one)

then choose 1 for jamming and stuff, 1 for access point

now I'm stuck with the fact that my phone nor any other device can't connect to the rogue AP lol (Edit: probably because of the DHCP server that fluxion uses)

[Aoki07]

Thanks when i remove the double forward slash how i can build the driver and install again? can we speak in private?

[AnhDQHE181109]

It's better to talk publicly as the others might need this in the future just run make in the root folder of the repository, then run sudo make install don't forget to install the kernel headers corresponding to your kernel version

[rajatjoshi98]

hey @Quang-vip i have tried but not working

[rajatjoshi98]

after install adaptor is not working at all

[AnhDQHE181109]

after install adaptor is not working at all

Could you be more specific? What did you do exactly?

[bharath4865]

you need to make the adapter run in concurrent mode, I used to face that problem but after enabling concurrent mode, it went fine

sir can i please have a talk in private as i to have the same issue and i was a begginer or can u provide any link of an vedio which helps me

[bharath4865]

please reply quang-vip fast

[AnhDQHE181109]

sir can i please have a talk in private as i to have the same issue and i was a begginer or can u provide any link of an vedio which helps me

like I said, it's better to talk here

[rajatjoshi98]

its not nessessary to be in concurrent mode.

[rajatjoshi98]

@Quang-vip i havent face this probleum. now I'm stuck with the fact that my phone nor any other device can't connect to the rogue AP lol (Edit: probably because of the DHCP server that fluxion uses)

[rajatjoshi98]

the probleum that i am facing is in deauthentication. it is not sending the packets at faster rate ,so as a result it is unable to deauthentcate properly.

[AnhDQHE181109]

the probleum that i am facing is in deauthentication. it is not sending the packets at faster rate ,so as a result it is unable to deauthentcate properly.

Try using other deauth methods

[niiitish]

Just do one thing when you are getting this error remove your adapter and pluging your problem will solve in my case when i remove mode: monitor when i plugin mode:auto

[anil1143]

Hello , i have a problem in the second step in fluxion for to create a "captive portal " this message appears when I select my wifi card : ] Select an interface for the access point.

[1] eth0 [+] Intel Corporation 8254EM Gigabite Ethernet Controller(rev [2] wlan0 [+] TP-Link TL-WN722N v2 [3] Repeat [4] Back

[fluxion2@kali]-[~] 2

[*] Unable to start captive portal interface, returning!

can someone Help please?

Hello help please

[cjb900]

@anil1143 why are you posting to an old long closed issue? regarding your actual issue its due to the chipset in the adapter you have not supporting VIF. VIF is needed to be able to both deauth and create a fake AP at the same time. There is no way to give that adapter VIF support either. You would have to look into getting either a second adapter or one that supports monitor mode, AP mode and VIF.

here is a list of supported adapter/chipsets Atheros AR9271 <- present in TP-Link TL-WN722N v1 or Alfa AWUS036NHA (2.4Ghz - USB) MediaTek MT7612U <- present in Alfa AWUS036ACM (2.4Ghz/5Ghz - USB) (not recommended to be used on Virtual Machines, but it works very well on native Linux. The recommended Linux kernel version is 5.3 or greater). For Rpi 2/3 run this command to get the card working echo "options mt76_usb disable_usb_sg=1" > /etc/modprobe.d/mt76_usb.conf Ralink RT2770 <- present in Alfa AWUS051NH (2.4Ghz/5Ghz - USB) Ralink RT3070 <- present in TP-Link TL-WN7200ND or Alfa AWUS036NH (2.4Ghz - USB) Ralink RT3572 <- present in Alfa AWUS052NHS (2.4Ghz/5Ghz - USB) Ralink RT5372 <- present in D-Link DWA-137 (2.4Ghz - USB) Ralink RT5572 <- present in Panda PAU07 or Panda PAU09 (2.4Ghz/5Ghz - USB) Realtek RTL8187 <- present in Alfa AWUS036H (2.4Ghz - USB) (may require patched driver) Realtek RTL8723BE <- present in Realtek RTL8723BE card (2.4Ghz - PCIe)

[anibardoo]

Hello , i have a problem in the second step in fluxion for to create a "captive portal " this message appears when I select my wifi card : ] Select an interface for the access point.

[1] eth0 [+] Intel Corporation 8254EM Gigabite Ethernet Controller(rev [2] wlan0 [+] TP-Link TL-WN722N v2 [3] Repeat [4] Back

[fluxion2@kali]-[~] 2

[*] Unable to start captive portal interface, returning!

can someone Help please?

Hello help please

[cjb900]

@anibardo Why are you posting to an issue that is over 3 years old and closed 🤔Second your issue is that the wifi adapter you have does not support VIF so it is not able to deauth and create a fake AP at the same time. You will need to either get a second one to use with fluxion or replace this one all together that supports monitor mode, AP mode and VIF. There is no way to get that adapter to work by its self.

[anibardoo]

bro i use tplink wn722n? which adapter should buy in low budget?

[cjb900]

yes but you have the v2 of that adapter only the v1 is properly supported for wifi hacking which is why you are having issues. You can find a list of known good adapters and chipsets below. But i can't say what the cost of them will be as that all depends on where you live and whats available online or in stores around you.

Atheros AR9271 <- present in TP-Link TL-WN722N v1 or Alfa AWUS036NHA (2.4Ghz - USB) MediaTek MT7610U <- present in TP-Link Archer T2UH (2.4Ghz/5Ghz - USB) MediaTek MT7612U <- present in Alfa AWUS036ACM (2.4Ghz/5Ghz - USB) (not recommended to be used on Virtual Machines, but it works very well on native Linux. The recommended Linux kernel version is 5.3 or greater). For Rpi 2/3 run this command to get the card working echo "options mt76_usb disable_usb_sg=1" > /etc/modprobe.d/mt76_usb.conf Ralink RT2770 <- present in Alfa AWUS051NH (2.4Ghz/5Ghz - USB) Ralink RT3070 <- present in TP-Link TL-WN7200ND or Alfa AWUS036NH (2.4Ghz - USB) Ralink RT3572 <- present in Alfa AWUS052NHS (2.4Ghz/5Ghz - USB) Ralink RT5372 <- present in D-Link DWA-137 (2.4Ghz - USB) Ralink RT5378 <- present in some some unbranded cheap chinese dongles (2.4Ghz - USB) Ralink RT5572 <- present in Panda PAU07 or Panda PAU09 (2.4Ghz/5Ghz - USB) Realtek RTL8723BE <- present in Realtek RTL8723BE card (2.4Ghz - PCIe)

[oyedejioyewole]

after install adaptor is not working at all

Hey there, @rajatjoshi98 could you describe further what you mean by isn't working

[Medullitus]

Help please. I have the same chipset please help!!!

[cjb900]

@Medullitus if you have a tplink wn722n V2/3 there is no way to get it to work in fluxion by its self. It needs VIF to be able to both create the fake AP and deauth at the same time. There is no way to get that adapter to support VIF. you will either need to buy a second one to use with fluxion or get one of the supported adapter/chipsets listed above

[Medullitus]

@Medullitus if you have a tplink wn722n V2/3 there is no way to get it to work in fluxion by its self. It needs VIF to be able to both create the fake AP and deauth at the same time. There is no way to get that adapter to support VIF. you will either need to buy a second one to use with fluxion or get one of the supported adapter/chipsets listed above

I bought this model. Can you check please? https://tr.aliexpress.com/item/1005002388387782.html?gatewayAdapt=glo2tur&spm=a2g0o.9042311.0.0.23bd4c4d76qqKs

Only monitor mode is mentioned but not the vif! Why vif isn't mentioned anywhere if it's that important feature, why????? :(((((

[cjb900]

VIF is not a common feature and is not normally mentioned in descriptions. But that chipset is an RTL one so is not going to work. if you recently bought it i would return it and get one from the list above.

[Medullitus]

VIF is not a common feature and is not normally mentioned in descriptions. But that chipset is an RTL one so is not going to work. if you recently bought it i would return it and get one from the list above.

It really sucks!! I waited it for weeks!!

I couldn't find them on Aliexpress. Can you check this please?

https://tr.aliexpress.com/item/32969457195.html?gatewayAdapt=glo2tur&spm=a2g0s.8937460.0.0.37672e0e6eYdPE

You say MediaTek MT7612U but it says MediaTek MT7612UN? Would be there any difference? I wanna use it with the virtualbox by the way...

[cjb900]

If the chipset is not on that list i can not say if it will work. considering the MT7612UN is similar to the MT7612U it may work but i have not seen anyone here use the MT7612UN so i can't guarantee. the best i can suggest is to stick to that list. if it not on it don't get it unless you can find something else online proving it will work and supports monitor mode, AP mode and VIF

[Medullitus]

If the chipset is not on that list i can not say if it will work. considering the MT7612UN is similar to the MT7612U it may work but i have not seen anyone here use the MT7612UN so i can't guarantee. the best i can suggest is to stick to that list. if it not on it don't get it unless you can find something else online proving it will work and supports monitor mode, AP mode and VIF

Okay bud, thank you so much. I really hate vif.. or realtek company... I asked the seller if there is any difference with the MT7612U. I'll write it here when the seller responds...

[cjb900]

@Medullitus I did some asking and that chipset MT7612UN should work and support VIF just like the MT7612U. But its not a 100% guarantee since the others i was asking do not have an adapter with that chipset to verify. So you would be gambling if you bought that adapter.

[Medullitus]

@Medullitus I did some asking and that chipset MT7612UN should work and support VIF just like the MT7612U. But its not a 100% guarantee since the others i was asking do not have an adapter with that chipset to verify. So you would be gambling if you bought that adapter.

Thank you so much bro! I can't find other chipsets available in Aliexpres.. Isn't there any chipset with Atheros except Atheros AR9271? It's surprising that your list is too short for both 2.5ghz and 5ghz adapters.

[cjb900]

that list is of adapter/chipset that have been tested and support all the modes needed and guaranteed to work with little to no issues. So yes there are many other adapter/chipsets out there but they either do not support the modes needed or have some issue that makes them not recommended or have not been tested to know if they will work. So anything not on that list would need some documented proof showing it will work.

[oyedejioyewole]

@Medullitus try using Qualcomm Atheros AR9271 WiFi Adapter, it contains the ath9k_htc chipset which supports VIF (virtual interface) mode and best of all is natively supported by most Linux distributions. At least that is what I use and I haven't had any problem since then :smile:

[MayankJaint]

It's better to talk publicly as the others might need this in the future just run make in the root folder of the repository, then run sudo make install don't forget to install the kernel headers corresponding to your kernel version

how do i install the kernel headers