Questions tagged [wifi]
WiFi is a layer 1 and 2 networking protocol for wireless communication between devices. It is typically used in local networks for client access, but can also be used in point-to-point network links. WPA is used to encrypt traffic.
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multiple issues after joining domain over remote site to site tunnel to another corporate envirement
I'm facing issues with multiple users after joining them to domain over site to site tunnel,
the company i'm joining its users has an Active directory which has their accounts to connect to corporate ...
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Rename a Windows network Adapter based on Description of the adapter
We need to rename the network adapter for a number of devices, however the adapter name can be different on different devices.
The identifier is the description of the adapter so wondering if anyone ...
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How to connect device with no web browser to RADIUS WPA2 Enterprise wifi network
I am trying to connect a Bresser 5-in-1 Weather Station to a workplace's wifi network, which uses RADIUS WPA2 Enterprise security. From a laptop or smartphone I can connect to the network and then ...
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Is it possible to implement a TCP/IP network over DECT?
I am working at a site where DECT is implemented on Mobile Devices, and I am wondering if it is possible to setup a TCP/IP network using DECT as the data transmission layer.
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How to prevent DHCP IP starvation attack on a wireless interface?
It's probably possible to go to any restaurant/cafe/bus with public Wi-Fi Hotspot and flood it with DHCP DISCOVER / REQUEST packets. If this network is created by a router that works as a DHCP server, ...
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Mikrotik Wifi on Android keep on disconnecting
My company recently purchased a few Mikrotik hAP Mini. These units are used for Site to Site VPN. The first unit I setup manually worked flawlessly. I then exported the configuration to the second, ...
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Fortigate and RADIUS Wifi authentication for domain and non-domain devices
We're setting up RADIUS authentication for wireless network connections through a Windows Server 2012 R2 (NPS).
We have to allow both domain computers (registered in Active directory) and non-domain ...
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Is there exist in a market some usb->ethernet->wifi combo dongle?
I have a USB-ended device which I want to connect to Enterprise Wireless network (EAP/TLS via FreeRadius). Is there any device in a market which can act as a WiFi client with EAP/TLS possibility?
Now ...
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Wireless EAP / Freeradius, is there a way to check Mac Address in LDAP?
So we have EAP-PEAP over MSCHAP working. What I'd like to do is have a MAC Address check, for the purpose of making sure people aren't putting their credentials into random devices. I know SCEP would ...
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SSH Connection loss when roaming to an AP with a different OUI
I have major issues with a device (Ubuntu 20.04 installed) in a warehouse with multiple access points. I am frequently losing the SSH connection. Investigating the matter, I found out that I lose ...
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Connecting to Multiple cameras which each acts as a WiFi Access Point [closed]
I have 7 cameras each acting as a WiFi Access Points and I can not change their configurations.
Camera1 SSID: camera1, pass: 1234, it has static IP: 192.168.42.1 and built-in DHCP server
Camera2 SSID: ...
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Is it possible to block dhcp traffic using iptables?
I have two devices with embedded Linux. One of them (machine A) has two network interfaces: eth that is used to connect machines together and wlan interface to connect to router via WiFi. The second ...
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DHCP issues in company network
I'm experiencing some issues with some DHCP clients, sometimes they cannot get DHCP leases.
My company has a Windows Server 2016 DHCP server with a failover twin server, both are also domain ...
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How do Wireless Security Protocols work? [closed]
For example, my home router use WPA2-AES as wireless security protocol. When I access a webpage, traffic coming from my desktop to home router will be encrypted with WPA2. However, when my router ...
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Persistent storage in captive portals or mobile internet while wifi connection without internet
I have a little problem here:
I want to create a WiFi network, which does not provide internet access. The WiFi network should only serve one website to the user like in a museum.
That's pretty simple ...
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How to identify server providing wireless SSID name [closed]
First, a lot of background so that you'll hopefully understand the reason for the question.
We had a catastrophic failure in our network - a surge that took out a couple of systems' network interfaces,...
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Mysterious Wi-Fi Direct Broadcasts
At my company, or networking and info sec teams noticed mysterious Wi-Fi Direct broadcasts on our network from our corporate laptops. I'm currently looking into this issue to figure out what's causing ...
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Abnormal port request on Linux system
I am using Debian Buster and Android 9.
Checking the network activities I noticed that it scans many ports.
How can I determine who is the cause or if this is normal?
I connect the mobile phone to the ...
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How can I measure the speed between laptop and wireless access point?
How can I measure the speed between my laptop and the wireless access point it’s connected to?
Notes:
when measuring the speed of the general connection to the internet, I’d use something like ...
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WiFi 6 2x2 vs WiFi 5 4x4
I am in the process of an infrastructure build out and I’ve narrowed down my AP selections between two. One being a 802.11ac 4x4 MIMO and the other being a WiFi 6 (802.11ax) 2x2 MIMO.
Does anyone have ...
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How to connect Brother MFC-L2720DW from the laptop or connected by wire or through Wi-Fi?
(I have very low experience with local networks. I need to connect the shared printer...)
The Brother MFC-L2720DW printer allows 3 ways to print: through USB cable, through wired LAN (patch cable, ...
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Wireless clients connected to the repeater not getting IP addresses from the DHCP server
I have a Mikrotik wifi router and an Asus wifi router configured as wireless repeater connected to the Mikrotik. The connection between Mikrotik and Asus is through wifi. Asus is getting IP address ...
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How can I use a LTE interface inside a docker container?
For my customer, I have to setup docker containers on separate machines that run various services on various physical links.
I cannot use "host" mode for my docker containers.
So far, I have ...
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Use ethernet port for smb share transfers, but smb should still be accessible over wifi [closed]
I'm pretty new to Linux networking and I'm not sure how to fix a file transfer issue I have.
I have two Raspberry Pis. One is running Raspberry Pi OS and the other is running OSMC. Both are connected ...
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Access a node from different subnet
I've made a web-application which I installed on a dedicated server connected to our company's LAN. I just have one problem. All the nodes on LAN have 192.168.138.x subnet mask. But wi-fi access point ...
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Why does setting MTU 1452 solve Internet problems and how to fix root cause?
In our church we get Internet uplink from a friendly neighbor’s WiFi. At first everything seemed (at least) fine but since some weeks general “Internet stability problems” increased and since approx. ...
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Capturing IEEE802.11.x auth and capabilities data with tcpdump?
I'm troubleshooting some issues with my wireless network (OpenWrt 19.x and mobile device) and I came across this:
https://dot11.exposed/2017/09/20/violation-of-802-11-standard-intel-wireless-cards-...
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Unable to locate package firmware-b43-installer (Debian)?
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I have a laptop that I installed Debian(buster) onto that has no GUI also known as (CLI). But for some reason, I can't install firmware-b43-installer it comes up with this error E: Unable to locate ...
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What are the causes for wildly changing but somehow cyclic RTTs on a 2.4 GHz network?
I have an AP that serves both 2.4 and 5 GHz networks (on separate SSIDs, without fallback). The neighborhood is quite busy (residential neighborhood)
A ping from a wired device to a device on the 2.4 ...
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Setting up a roaming local network
I'm trying to set up a particular network topology I haven't worked with before, and I'm having some trouble figuring out what I actually need.
In a traditional SOHO network, you would have a router ...
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does wireless access point support internet from ISP
As I know a wifi router can be used establish a local wireless network by connecting ethernet cable to it from ISP, Is it possible to do same thing with wireless access point?
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Mikrotik hotspot issue - login page not loading
I've configured a hotspot on a Mikrotik CCR1036-12G (OS 6.47.4), but after the device connects to the wifi and asks to authenticate in the network, the login page remains loading for a while and ...
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Wifi on CentOS Minimal 8
I am having a very hard time making Wifi work on a Minimal Centos 8 installation. Using nmtui I can make Ethernet/Wired work, but I cant make Wifi work. It does not even show up on nmtui, only Wired ...
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DNSmasq Forward DNS on Multiple Interfaces
I am using hostapd to setup WiFi hotspot networks on my Ubuntu 18.04. I am using this guide to setup multiple SSIDs on my WiFi interface. And to enable DHCP on the hotspot networks, I use dnsmasq.
I ...
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Use Smartphone as gateway to internet for my local network (Not smartphone hotspot!)
Am I able to use my Android smartphone with 4G LTE internet access as some kind of gateway to internet?
I need anyone who is connected to my local network made with Wi-fi router to be able to access ...
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How to properly add more lan devices ? Home network
I have a small home network. 1 router with wifi and 4 lan ports.
The problem is that I don't have enough lan ports and I want to extend it.
I have a few possible solutions but I feel like none of them ...
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rtk8192ee wifi firmare stops loading after ifenslave setup attempt (Debian 10)
I tried setting up Mode 0 NIC bonding using ifenslave between my Ethernet and WiFi cards on Debian 10.
After numerous ifconfig wls1 up/down, I was able to set up Bond0 until it stopped working. After ...
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Ethernet is disabling WiFi [closed]
We are working in iMX6 board running in Yocto 4.9.88 build. It has both Wifi and Ethernet connections. When we connected WiFi alone, pinging is working properly. Pinging works if we connect Ethernet. ...
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System resume kills wpa_supplicant
Using debian distros for a few years. All distros from the last few years seem to share a wierd wpa_supplicant issue. Has anyone else attempted to solve/understand this issue during sleep/resume?
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How does Wifi autoconnect work?
I have an access point which has died, I'm attempting to replace with a similar product. Which properties do I need to clone off the dead access point to coerce all clients who have previously ...
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WAP Assigns same IP addresses for 2 or more devices occasionally [closed]
I am new to being a sysadmin and am still learning so apologies if I say anything incorrect or flat out wrong.
Where I work we have a wifi network consisting of several different WAPs that spread the ...
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RTNETLINK answers: No such device /Wireless card /kali linux
I've got an issue with alfa AWUS036NH. I cannot set it up. I get info : "No such device" or "Input/output error". I used command : "sudo ip link set wlan0 up" Kali version :5.5.0-kali1-amd64 release:...
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Inform all clients on a network about a password change
I have a use-case where a bunch of my remote devices are connected to a 2.4GHz WiFi network on a router. The SSID and password are known to these devices. Due to security reasons, the passwords need ...
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Bad WLAN routing behaviour when switching AP
I have come across a number of variations on the problem described below with router/access-points and WiFi range extenders from various manufacturers.
All devices are wireless.
LAN/WLAN made up of ...
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Apartment-wide single SSID / multiple password Wi-Fi network security concerns?
My apartment building is changing internet providers, and the new provider plans to install a network that will have a single SSID for the entire building. Each tenant will be given a unique password ...
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Basic setup of an Aerohive AP245X via CLI
I recently acquired an Aerohive AP secondhand without a GUI. I reset it by pressing the button for however long. Now I want to set it up as a normal WiFi AP w/o any fancy Hive stuff. Just one SSID ...
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MikroTik: Set scan-list in RoS to ONLY use 2.4 GHz non-overlapping channel frequencies
How do I set the scan-list in MikroTik RouterOS to use only 2.4 GHz non-overlapping channel frequencies?
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WiFi: Frequencies that map to non-overlapping 2.4 GHz channels 1,6 & 11
I'm configuring a wireless router. I know the non-ovelapping channels are 1,6 & 11. However, my router only specifies frequencies that I can select, not channels. What are the frequencies that ...
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Android appears to bypass firewall rule which restricts request for port 53
I'm trying to configure my Fios G1100 to force DNS request to my internal DNS server 192.168.1.131. This device runs Pi-hole, which is configured to make DNS request to 1.1.1.3 and 1.0.0.3. This has ...
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Getting network UNCLAIMED in Debian 8.3
When i check for lshw , i get following result
user@user# lshw -c network
*-network
description: Ethernet interface
product: I210 Gigabit Network Connection
vendor: Intel ...