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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Cisco 1242 WAP Bridging

I'm looking to connect two facilities with a a pair of Cisco 1242 access points and am looking for advice on configuration. We have multiple VLANs running that will need to be passed through the ...
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541 views

Advice for outdoor wifi hardware and topology

I haven't setup any wifi networks other than an access point or two at any single location, so I'd like advice on how to setup an outdoor/weatherproof network in an area approximately 150 feet by 200 ...
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322 views

Setting up a linux server to share an internet connection

I in the process of reconfiguring my network. It is currently like this: internet - modem - wireless router - wired server/clients | |---- ...
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347 views

CSMA/CD and CSMA/CA

CSMA/CD is used in wired LANs, CSMA means that the computers on the network sense the medium if the medium is idle, the computer transmits otherwise it defers sending.CD refers to collision detection. ...
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1answer
1k views

Connect to wired and wireless networks at same time, Ubuntu [closed]

Currently, I have a media PC running Ubuntu 10.04 that I am trying to connect via a wired network cable directly to a NAS box, and wirelessly to the router. This works no problem after I run sudo ...
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1answer
88 views

Automated VLAN creation with residential Wireless devices

We've got a few WRT devices from Linksys here, and the issue has arisen to deploy them in a relatively small environment, However, in the interest of manageability we'd like to be able to ...
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3answers
218 views

Suggest Wireless AP [closed]

I'm doing a data and voice install for a client in the hotel industry. I'm done with voice and am looking for my options to provide a Wireless AP. The building's dimensions are 100ft X 50ft. There are ...
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2answers
2k views

Can HTTPS traffic over an unencrypted wireless network be viewed by others?

If I were to log in to - let's say - Gmail.com (which uses HTTPS by default), can my login and password be intercepted if I'm on an unencrypted wireless network? And if I still have the login cookie ...
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2answers
869 views

Wireless networking on Gnome on Ubuntu 9 / 10

So here's my problem: I have some netbooks (ASUS eee, and ACER Aspire Ones) that I've been tasked to set up as kiosk machines, locked up tight for normal users. I am a command-line, server man, so ...
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98 views

DDWRT or similar as repeater in a network

I have a friend with sever connection issues due to her wireless router being on the bottom floor of her house, and the computer being a story or two away. I have several old Linksys routers lying ...
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200 views

Different Results of Scanning Wireless Networks

(1) I found that under Ubuntu, WICD and command "/sbin/iwlist wlan0 scan" give a little different list of wireless networks. Windows 7 also gives a slightly different list. For example, there is one ...
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384 views

Connect to Nonencrypted Wireless Network Using Ubuntu Commands

I failed to connect to an open i.e. nonencrypted wireless network using Ubuntu command lines. Here is what I did. I firstly bring down the Network Manager, next bring wlan0 up and bring the encryption ...
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12k views

Connect to WEP Wireless Network by command line on Ubuntu

I am a newbie to both network and Linux. I am now trying to connect to a WEP wireless network by command line on my Ubuntu 8.10, because the Network Manager does not support 64 bit WEP. (1) I ...
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197 views

Is browser based wireless authentication secure?

Our wireless network previously used a preshared WPA/WPA2 key for guest access, which allows them access to the Internet. (Our employee access uses 802.1x authentication). We just had a wireless ...
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3answers
263 views

How to serve a webpage on connection to WiFi network

I would like to be able to serve a local webpage (on a LAN) when someone connects to a WiFi network. This happens quite often in libraries, cafes etc, so i'm sure it can be done, but I have no idea ...
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4answers
25k views

Is there an equivalent command for 'init.d/networking restart' in OS X

From time to time, I've encountered issues with OS X clients' network connections (Wired and Wireless, Leopard/Snow Leopard) where nothing will fix the issue, until you reboot. Is there a ...
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0answers
962 views

HP Officejet 4500 G510n-z Not Showing up in Remote Desktop (Terminal Services)

I installed this printer on a windows XP machine. First using the wireless option, and later using USB. In both cases when I connect to my other computer (also Windows XP) via terminal services and ...
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3answers
124 views

Is it possible to do “something” every time linux connects to a network?

Hey, I'm trying to make a script run every time NetworkManager (or whatever, but that's what I'm talking to right now) connects to a network (or changes networks). What I really want is, ...
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4answers
2k views

Troubleshooting wireless connection problem / site survey?

I just started in the IT department of a small company (200 users) and it's clear that one of the main problems that is driving everyone crazy is the spotty nature of the wireless connectivity ...
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2answers
264 views

need help upgrading small business wifi network

Our small business currently has 3 wireless access points around the building, each with their own SSID. Security is done with WEP (ick) and MAC address filtering (double ick). We are trying to ...
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232 views

Dual NIC internet access

Q1. If a computer had two NICs, lets say windows, on which interface would HTTP traffic (or any for that matter) go out on. Not sure how the routes table would look like. Q2. If one of the NICs ...
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3answers
436 views

can't find ip of wifi acess point

I setup an wireless AP (linksys wifi router) to have no dhcp and point to the main router as the default gateway. I also set it up to obtain a ip from the network but when i go to my main router and ...
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2answers
897 views

How to provide wireless internet in a small business?

My wife has a small business that she wants to offer a free WiFi hotspot in. She suggested opening up our private 'net connection to the customers - T&Cs of our internet provider and thoughts of ...
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2answers
872 views

how to set up dual wireless routers (G and N) with single broadband connection

A local cafe has an 802.11g wireless router attached to either an 8- or 12Mbs broadband connection. Although many customers still have -g devices, an increasing number are showing up with 802.11n ...
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6answers
244 views

Wireless Password

I have a security policy question: I want to know how other admins handle the WIFI password in the office. Does everyone know it? Do you enter it in for the user or guest every time and keep it a ...
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1answer
1k views

network policy + WPA enterprise (tkip) Windows 2008 R2

hi I've attempted the following guide and in a bit of a pickle. http://techblog.mirabito.net.au/?p=87 My main goal is to have a username / password based wireless authentication with active directory ...
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Troubleshoot dropped wireless connections

I was recently hired in the IT department of a small company (~180 users) and one of the issues that people have been complaining about is having their wi-fi connections drop during meetings. The ...
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3answers
217 views

Access points fighting for dominance?

We have a small office with a large number of wireless devices (a mixture of desktop machines, laptops, and wifi-enabled phones) all working from a single Apple Airport Extreme which extends our wired ...
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2answers
1k views

How many wifi access points do I need for an event with 200 people?

I host an event that usually draws 200 people. It is held in a university lecture hall that holds about 260 people. How many/what kind of wifi access points/routers will I likely need to provide ...
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101 views

Delayed internet access

When I (and presumably my users) first start up or log in to my computer I can't get internet access until several minutes after logging in. Internet pages like serverfault.com will time out. During ...
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3answers
4k views

Adding a Second Wireless Router to an Existing Wired Network

I apologize ahead of time, I know this has been asked before, but I'm still having problems...maybe you guys can help. I started out with the basic instructions from the highest-voted answer at ...
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3k views

What is the best way to setup a public and private wireless access point on the same home network? [closed]

For my home network (with internet provided from a cable modem) I would like to setup a secure wireless access point that I use for all of my personal connections (home PC, iPhone, Xbox, etc) and also ...
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900 views

8021x wireless clients auto connect prior to user login

I am using a 2008 r2 dc that also performs Radius (NPS), I also have a 2008 r2 certificate authority which is giving out certificates. The computers are getting the certificate and when a user logs ...
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1k views

Can a wifi AP act as a client, and a server at the same time?

I feel this is SF worthy (as opposed to SU) as I go into a bit of detail on gateways/routing. Here's my ideal setup (if possible) -- there is a wifi network (lets call it bob's) with which I ...
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AFP painfully slow

Copying a file using AFP took 40 minutes but using scp it only took 7 mins. Why is AFP so slow? My setup: D-Link DIR-300 wifi router iMac with Snow-Leopard serves AFP Macbook with Leopard is the ...
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2k views

Display wireless channels currently in use

Is there any windows utility to display the wireless channels are currently in use by the available wireless networks? I'd like to be able to see what existing channels are using so I can try to ...
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2answers
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Macs don't connect to wifi access point but PCs will

So, as a side project I'm going to try and figure out why the wifi APs in my building exhibit the following behavior: - They typically allow all types of computers to connect without issues - ...
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118 views

Can an external server be used to encrypt all traffic

My work takes me to a number of places with WiFi connection. I want to be able to encrypt the traffic between my laptop and the internet. Can I do this with a VPN server? What is the best way to get ...
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1answer
676 views

Setting reply priority on Wifi network with QoS?

When using a Station and Access Point that support QoS over Wifi, is it possible to set the priority (= Traffic Identifier = TID = QoS channel) of the reply? For example when sending a ICMP ping ...
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176 views

Wireless AP Placement and Digramming

I'm trying to research the best placement of wireless APs in a given space, and I'm running into problems in gathering information. I found (what I thought was) a great source in this tech republic ...
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428 views

Are there any tests I can run on a network to simulate 100 heavy network users?

I will be hosting a Ruby on Rails workshop at a small hotel in the near future, and while they have 'Wifi' everywhere on the property, and the property normally hosts 150 - 300 people, I am not 100% ...
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2answers
5k views

Redirecting all WiFi requests to my server (like captive portal)

I'm actually trying to develop a public wireless network (not business, just for educational purposes, I am studying computer science...). But I am lacking the required knowledge to acheive this goal ...
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2answers
3k views

Cisco Aironet (802.11n models): how to put a WEP128 ssid and a WPA/WPA2 ssid on the same radio?

I'm using a Cisco AIR-1252AG (IOS 12.4(10b)JDA3) and I must provide both a WEP128 wlan (for compatibility with older embedded devices, this will go to a firewalled vlan) and a WPA2 (WPA1 would be ok ...
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2k views

Sonicwall TZ 210 Enhanced OS - Allow Wireless to talk VPN

Does anyone know how to allow the WLAN access to talk to a VPN subnet that is set up on a Sonicwall TZ 210 Enhanced? I got the WLAN (192.168.2.X) talking to the LAN (192.168.1.X), but I also need to ...
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2answers
2k views

command line utility to connect to wireless network

Can any one tell me a command line utility to connect to a wireless network in Windows XP. I cannot use netsh wlan as this is not supported in XP. Is there any open source command line utility tool . ...
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2answers
80 views

Property Management Company looking to set up VPN for Tenants

We are a property management company seeking the best way and most affordable way to set up a VPN for our tenants in both a 2 & 3 story (22 units) apartment complex and also for a cafe in a ...
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2answers
1k views

Linux: Bridge doesn't forward if interface is WiFi?

I have an Edimax EW-7318USg which comes with an Ralink rt73 and its USB. When trying to bridge (to share internet for example) it doesn't work. But today I tried to do the same with a wired ...
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1answer
261 views

Full Motion Video over Wireless Projection

I'm looking for a solution to get graphics from a tablet to a projector wirelessly. The idea is to have the professor connect to the the solution and then connect to a network share, load their ...
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15k views

Questions about overlapping wifi access points

I have a few questions about wifi. Say we have a small campus with a set of wifi access points in most buildings, one each for channels 1, 6, and 11. It's not exactly that clean, but that's the ...
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3answers
858 views

Wifi activity monitor

I'm looking for a tool that will summarize WiFi traffic per node. I'm not looking for fancy things like packet sniffing... the actual data that's being sent is irrelevant. I want a way to see that ...