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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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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 be the better option here, but this is where…
Jonathan S. Fisher
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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 machine (B) has only one eth interface. My goal is…
user6758
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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 controllers. While the problem is happening, I ran…
Tobia
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How do Wireless Security Protocols work?

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 forward traffic to the internet (toward the…
Student95
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How to identify server providing wireless SSID name

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, and we're trying to rebuild the configuration. …
Dennis
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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 PC in hotspot. sudo iptraf-ng output: Thu Mar…
Graziano Giacobazzi
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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 speedtest.net, but I’m not sure how to measure the…
stevec
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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, 8P8C connector a.k.a. RJ-45), or through its…
pepr
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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 from Mikrotik DHCP server. The wifi clients…
istvank
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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 happily used the macvlan driver to spawn new network…
FLBzh
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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. 2 weeks my Raspberry Pi on site couldn’t…
Daniel Böhmer
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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-send-40mhz-intolerant-bit-in-5ghz/ Most notably,…
KreonZZ
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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 that connects through a modem to your ISP (usually…
Kian
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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?
krishna
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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 returns an error page with…
wilsonfoz
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