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How To Secure Your Wireless Network

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#1
datarunner

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How To Secure Your Wireless Network

How do you know if someone is using your WIFI network?

Wireless networks are great and allow us to set up networks quickly, easily and without the hassle of physically running cables etc.

However wireless networks need to be secure from outside / unauthorised users otherwise people can use your network for their own malicious intentions. An example of this is people using your wireless connection to connect to the internet and download illegal content such as films, music, porn etc. And if your internet connection has a download limit and other people are downloading from your connection then you will be billed for this. Worse still, people can then join your network and "browse" the contents of your computers quite easily. It is amazing the amount of networks we see that are totally wide open to the world. As it is your internet connection it is your responsibility.

So how can you tell if your wireless network is not secure?

In XP:

Open Control Panel > Network Connections > View Network Connections >Right Click your wireless adaptor and select View Available Wireless Networks. If your wireless network is listed as Unsecured then other people can easily use your internet connection or access your network.


In Vista:

Open Control Panel > Network and Sharing Center > Then select Manage Wireless Networks (top left) > Now any wireless networks that you can connect to should be listed as shown. If your wireless network is listed as Unsecured then other people can easily use your internet connection access your network.


Or you can use a Freeware program such as Netstumber to identify security issues or identify unsecure wifi networks - Get Netstumbler here

So how do you secure your wireless network?

Well there are several things you can do so here are some basic security steps:

* Change the name of your SSID (wireless network name) from default to something else. For example a SSID named Netgear easily identifies your network and its hardware.
* TURN OFF SSID Broadcasting - Once you have all your required wireless clients / computers on your network, TURN OFF SSID broadcasting so that no one can "see" your wireless network.
* Change default router username and passwords. Most routers have the same, default admin username and password for admin / setup purposes. So all an intruder has to do is login to your router using the defaults and then lock you out.
* Use MAC address filtering - set which devices can connect to your wireless network by their MAC address. Use ipconfig / all to identify your MAC address.
* Use IP filtering or IP address reservations so that only those allowed IP's can access the network.
* Turn OFF DHCP on your router and set IP addressess on clients manaually. DHCP is great and automatically assigns IP settings to your clients / computers. However if it can assign IP addressess to your clients it can also assign an intruder a valid IP address for your network.
* Limit the DHCP address range
* Check your router and view the list of attached devices - if there are more listed than the number of computers you have then someone could be on your network
* Use Port filtering / blocking to block ports you do not need open.
* Use authentication - either PSK or EAP - DO NOT LEAVE AUTHENTICATION OPEN.
* Use encryption to protect your data. WEP and WPA(2) are 2 types of encryption however WPA(2) is recommended.
* Set logon hours so that people cannot access your network out of hours or simply turn your router off especially with today environmental issues.
* Use a wireless network analyser such as Netstumbler (free) to test / analyse your network.

Using the above wireless network security steps will help protect your wireless network from unauthorised use and prying eyes.
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#2
Dwight

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Inssider works with Vista and Win 7 freeware very good network analyser.

http://www.metageek....oducts/inssider

Dwight :)
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#3
Ahmed jama

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works on huawie adapters ONLY ALWAYS BACKUP!!!
you can call your ips and ask how to sercure your network.
1)find IP adress
2)type in adress bar and press enter
type admin for username and password
click on basic
click on wireless lan settings
it has all the network info all you need to chane is the sercurity and key (password)
lock for Authentication Type
chang to WEP-PSK
LOOK FOR WEP-PSK
change ecription to TKIP
LOOK FOR Pre-Shared Key UNDER THE ECRIPTION
WRITE A STRONG PASSWORD
CLICK SUBMIT
RESTART YOUR COMPUTER
DELET YOUTR OLD NETWORK
SEARCH FOR YOUR NETWORK
CLICK CONNECT
WRITE PASSWORD
CLICK CONNECT
IT SHOULD CONNECT
ALWAYS BACKUP!!!
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#4
Aaronor

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Great guide, thanks. Some useful stuff that I didn't know before.
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#5
brayanscholar

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I think that is really true as datarunner said. You can also assign the ip security and password protection to some unwanted access.Also do
Disable remote administration,
Reduce your WLAN transmitter power,
Secure your wireless router or access point administration interface,
Don't broadcast your SSID,
Enable WPA encryption instead of WEP
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#6
cisco3750

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1. first make sure your comcast modem is not acting like a switch (router) as most basic modems have a cheap router built into them which could mean it is firewalling also and so is your router which double firewall causes problems.

2. So to check that go to the manufacturer website of the modem and look up the configuration page that allows you check to see if it does indeed have a built in router. If it does disable it aka (bridge) so it only acting like a modem. If not then your fine.

3. For the netgear router google search the configuration page ip same concept as step 2 just diff numbers and type that into an address bar to pull up the setup page. From there find security or encryption or whatever. Im not sure as i dont have a netgear but most routers are the same. The just secure it by selecting an encryption (wpa/wpa2) is preferred then set a password.

your done.

the configuration page for the netgear router is probably 192.168.0.1 so just type that into a web browser address bar.
if that doesnt work then just go under networking and sharing click the network your connected to then click details and under ipv4 is listed the ip address of the router that you need to type in.

cant help you on the comcast modem as i dont know the manufacturer of the modem.

Edited by SweetTech, 28 April 2011 - 07:12 AM.
removed links.--ST

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#7
jenniferdesuza

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Thanks for sharing information. I was not aware of it. I have installed window XP on my system. I will surely look forward to your information to secure my wireless network.......
______________________________

Edited by SweetTech, 28 April 2011 - 07:40 AM.
removed links from post.--ST.

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