I would like to describe my problem with a scenario:
For example I am working with a raspberry pi board. My card is connected to an internet. But I want to connect to a different wifi network. Before connecting to the new wifi network, I want to compare the ssid and password information of this network with the ssid and password information I have, and check the accuracy of my network information and network connectivity. I want to do this check before new connection. So after doing the checks I should try to establish the connection. Unfortunately, I can only check the accuracy of this information by trying to connect to the network. In summary, how can I check the accuracy of the network information using my ssid and password information without trying to connect to a network?
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I want to get wifi's SSID and password from server and I have to check any available wifi's SSID is matched with my server's SSID. If any matched, I have to connect with that wifi using its password. I have read many post related to this but I couldn't get any answer.
This is not possible in iOS. The only thing you can retrieve is the SSID after the user has connected to one of the Wi-Fi networks using the regular iOS UI.
You can use Hotspot Configuration to register SSID/password to connect to.
For more info, see iOS - How to programmatically connect to a WiFi network given the SSID and Password using a private/3rd party library
I need to create a wireless network with no Internet access with a Pi, because I need to communicate to it with an Android smartphone and a laptop, but being the RPi the highest step in the network hierarchy.
I've found -and tried- that I can do an adhoc network, but I am unable to connect to it with the smartphone. The other alternative is creating a Wi-Fi hotspot, with no NAT, but I don't really have a deep knowledge on networks so I'm really lost in which IP adresses I have to set.
I've followed this tutorial, and found it really useful. Could anyone tell me what should I modify from it to make it only local -apart from not doing the NAT?
The Rapsberry Pi 3 has built in Wi-Fi that can serve as an access point. Based on my experience, with the Pi acting as an access point, you should be able to connect to any device, be it Android or not.
The Pi will act as access point and serve as a DHCP daemon, assigning and handling IP addresses to any devices that connect to it. This will be a standalone network and will not be able to share an Internet connection unless you bridge it. Follow this tutorial up until the Internet sharing part:
https://www.raspberrypi.org/documentation/configuration/wireless/access-point.md
Also, it would be better to ask this in the Raspberry Pi stack exchange.
I am not an expert of the network domain.
Today I have a network with a connection to the Internet. Some computers use an ethernet connection, others use the WIFI.
I wish to monitor the network because we have a slow connection.
I plan to add a switch with SNMP in front of my modem.
If I connect an access point wifi on the switch, would I be able to differentiate the different computers connected in wifi ?
Thank you,
Any network equipment that has the BRIDGE-MIB RFC 1493 implemented will let you check which port is doing what on your network. You would want a switch/router that is also an access point, or if separate equipment, then the access point needs the BRIDGE-MIB.
Is it possible to connect to WLAN using swift, in case I receive WLAN SSID and password from API with my permissions, and before connection I also accept Terms & Conditions. So as a user I totally agree that to happen through a particular app. So I'll search for/or get my local area network by name/WLAN SSID, and connect to it by password but all should go through code. The point is that even though I've a secured wlan, everyone who comes to my store and has my app to be able to connect to wifi even though it's secured.
I am using Ubuntu 14.04 with an external wifi key.
My goal is to successfully connect to a wifi spot without going through the GUI using a script
I have tried the following commands:
-nmcli nm wifi on
-nmcli -p dev wifi
-nmcli con up id "essid"
The second command gives me a good list of available wifi issues, however when I try to connect with the third command an error prevents the connection:
-Error: Unknown login: my "essid".
I've tried many other commands located in the wireless part of the forum, but without success.
If I use the GUI and just click once on a wifi spot to connect it without the above commands It Works.
Thank you for your interest in my concern.
Sorry for my very bad english.
"nmcli con up" only connects to existing connections and uses the saved named of the connetion as ID, not the SSID of the network.
To connect to a "new" wireless network use:
nmcli wifi connect <(B)SSID> [password ] [wep-key-type key|phrase]
If you can live without NM, then what I used to do in order to programatically connect to wifi networks was to use iwconfig and dhclient.
In order to associate to the wireless AP:
iwconfig YOUR_INTERFACE essid YOUR_ESSID channel YOUR_WIFI_CHANNEL key YOUR_PSK
In order to get an IP address via DHCP:
dhclient YOUR_INTERFACE
Note that if NM is still running, this will not work.