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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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Why would you use EAP-TTLS instead of PEAP?

As I understood EAP-TTLS and PEAP share same level of security when implemented in wireless networks. Both only provide server side authentication via certificate. The drawback of EAP-TTLS can be non native support in Microsoft Windows so every…
Ivan Macek
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Beginners questions on how RADIUS and WiFi authentication works

I am a network admin at a high school in South Africa, running on a Microsoft network. We have approximately 150 PCs around the campus, of which at least 130 are wired to the network. The remaining are staff laptops. All IP addresses are assigned…
Philip
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arp-requests cannot be seen by specific nodes

I create an open ad-hoc wlan by using iwconfig (I have the same issue with wpa_supplicant as well). there are 4 nodes on the network as seen on the figure below. The nodes run ubuntu 12.04 and debian squeeze, and have 3.7.1, 3.5 and 3.2 kernels. I…
johan
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How do you troubleshoot wireless woes?

Sometimes I have to troubleshoot machines on my LAN which have flaky wireless connections without any seemingly logical reason. Contrary to "normal" network connections in most cases I don't know where to start in order to debug or solve the…
splattne
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What to filter when providing very limited open WiFi to a small conference or meeting?

Executive Summary The basic question is: if you have a very limited bandwidth WiFi to provide Internet for a small meeting of only a day or two, how do you set the filters on the router to avoid one or two users monopolizing all the available…
Tim Farley
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Windows Server 2012 R2 DataCenter The request to list features available on the specified server failed

I am trying to add the Wireless LAN Service to my server but I first had to restart it because it installed some updates a while ago. After the restart it came up with the following error: The request to list features available on the specified…
Menno van Leeuwen
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How do captive portal network connections work?

Internet access at hotels, airports cafes is often gated by a captive portal which forces you to a particular web page on first use, for example a payment page or some page to accept a terms of service or an authentication/authorization page. You…
Howiecamp
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Connecting two laptops through wireless adapters without wireless router

I want to connect two laptops through their wireless network adapters. I dont want to use any wireless router or access point. How can I do that. Both are running windows xp, where one has sp2 and other has sp3. I am looking around internet but…
Tahir
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WEP or WPA what should I use for my WiFi networks connection

Which protocol should I use and why?
Charles Faiga
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Wireless Backhaul - How to plan and test Point-to-Point feasability in potential antenna locations?

Our organization has begun to seriously consider replacing many of our interconnects with wireless backhauls, meshes or generic point-to-point links as the situation warrants. Our current method of determining feasibility (Line of Sight,…
user62491
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VLAN for WiFi traffic separation (new to VLANing)

I run a school network with switches in different departments. All is routed through to a central switch to access the servers. I would like to install WiFi access points in the different departments and have this routed through the firewall (an…
Philip
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Security considerations of WPA versus WPA2?

As we replacing our existing WEP infrastructure across multiple offices, we are weighing the value of upgrading to WPA versus WPA2 (both PSK). We have several different types of devices that do not support WPA2, so moving to that protocol has…
Doug Luxem
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Industry standard for minimum Wifi signal strength?

Is there an industry standard for how strong a Wifi signal needs to be in order to have a reliable connection? For example, maybe Wifi endpoints are designed to the specification that they connect reliably to a -70db signal. We're designing a Wifi…
user163521
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Wireless Signal Strength + Performance

We have two access points on the shop floor. One of the AP's is not performing correctly with erratic signal strength and connectivity. Are there any open source tools available to measure performance of a wireless access point or router?
jdiaz
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Configuring WPA2-Enterprise with Freeradius

I'm trying to set up an authenticated wifi network with Freeradius. I've managed to get things working using self-signed certs etc. The problem is Windows clients need to uncheck the "Automatically use my windows logon name and password [etc.]"…
Vincent O.
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