← Revision 196 as of 2007-01-19 04:59:27
|Deletions are marked like this.||Additions are marked like this.|
|Line 63:||Line 63:|
* irc.personaltelco.net (US)
* irc.bcwireless.net (CA)
* irc.personaltelco.net (US) Linked to irc.bcwireless.net
* irc.bcwireless.net (CA) Where most CWNs reside.
* irc.efnet.net #swn Where you can find SeattleWireless
Welcome to the irc.freenode.net/#wireless Frequently Asked Questions page. Look here first for resources and tips on doing your Wifi magic.
Other websites you should look at for help are:
http://WWW.HPL.HP.com/personal/Jean_Tourrilhes/Linux : The Linux WLAN Driver HowTo page
http://www.seattlewireless.net/index.cgi/HardwareComparison List of cards, chipsets and drivers that support them
http://Prism54.org/supported_cards.php : Linux support for Prism54 based 802.11a/g cards.
http://HostAP.Epitest.FI/ : Linux support for Prism 2.0/2.5 802.11b cards.
http://madwifi.org/ : Linux support for Atheros based 802.11a/g cards.
http://Linux-LC100020.SourceForge.net/ : linux support for ZyDAS 1201 based 802.11b devices.
http://ACX100.sourceforge.net/ : Linux support for TI ACX100/111 based cards. The ACX111 is not quite there yet.
http://linux.oldcrank.com/tips/wpc11 : Tips for setting up a Linksys WPC11 (or, get a real card).
http://wifiadmin.sourceforge.net/ : A hotspot management system with user support.
http://getwifi.sourceforge.net/ : A script that joins wireless networks based on precedence.
http://www.wireless.navigator.co.uk : Tools and information.
http://m0n0.ch/wall : An all in one firewall package.
Community Wireless Networks who hang out here.
http://www.manchesterwireless.net : The Manchester Wireless broadband project.
http://www.houstonwireless.org : The Houston Wireless User's group.
http://www.nycwireless.net : New York City Wireless - Hotspots for the pigeons.
http://www.seattlewireless.net : The Seattle Wireless Community Network Project.
http://www.bcwireless.net : The British Columbia Wireless Network Society.
http://www.personaltelco.net : The Personal Telco Project.
http://www.e3.com.au : WAFreeNet.
See also : WirelessCommunities
2. General IRC Channel Questions
2.1. Who runs the channel
2.2. Is irc.freenode.net the same as irc.freenetworks.org
No, irc.freenode.net is a seperate IRC network.
2.3. Where did irc.freenetworks.org go?
The irc.freenetworks.org server is offline but the rest of the WirelessIRC network can be reached through one of these servers:
- irc.personaltelco.net (US) Linked to irc.bcwireless.net
- irc.bcwireless.net (CA) Where most CWNs reside.
irc.efnet.net #swn Where you can find SeattleWireless
- irc.sydneywireless.com (AU)
2.4. I asked a question but no one is answering me!!
2.5. I'm a profiteering wisp and I hate you non-profit idiots
- Maybe you should use #wisp instead.
2.6. Some asshole named 'jmc' banned or kicked me. Wtf?
- As part of a new initiative to return the signal to noise ratio of #wireless to something endurable, jackasses will now be kickbanned whenever 'jmc' notices them. The criteria for jackassery include, but are certainly not limited to: describing your commercial activity with such vigor and repetitiousness it becomes a shill so shrill only dogs can hear it, answering questions pedantically and then immediately transitioning into shilling, asking stuff in the FAQ over and over again like a moron, etc. etc. In general, don't be stupid.
2.7. Why am I op'd?
- Short answer: No particular reason.
Long answer: Some of us (notably matthewa) observes that privilege is more or less irrelevant. Some people think that having "ops" is a symbol for having higher privilege, or stature, but in the real-world of license-exempt wireless networking there is no such thing. Consider being a victim of mass-oping a sign of the times, no one has more obvious privileges than the other.
Some people, like grumpydog, view +o as an issue of . They believe that no one but those few who individuals who contribute in some way (often in the form of monetary investment to the host network, FreeNode) to give them an absolute right at having control over others. Ignore these people, they're full of shit.
If you think it's dumb that everyone has ops, that's fine. If you think everyone having ops is asking for trouble, you could be right, but maybe you should read [http://c2.com/cgi/wiki?WhyWikiWorks WhyWikiWorks] to get an idea of why it doesn't *really* matter. If you still don't get it, don't fret, no one will bother explaining it to you. The concept may simply be too obvious for you to "get".
2.8. Who is WifiFred?
See WifiFred for a complete command reference and additional information.
2.9. Are there channel archives?
- Nope. At least not that we're going to admit to quite yet.
3. Community Wireless Issues
3.1. Where can I find a Community Wireless Group to hook up with?
The WirelessCommunities page has a list of groups around the world.
[http://www.nodedb.com/ NodeDB.com] lists community wireless nodes around the world.
3.2. Where can I find peering agreements for Community Wireless networks?
3.3. Where can I find an acceptable use policy for my community wireless hotspot?
4. Commercial (for-profit) Wireless Issues
4.1. How can I make money?
- Q: I have a great idea on how to serve my local starbucks and makes loads of cash. How do I do it?
A: Go [http://isp-lists.isp-planet.com/isp-wireless/resources/how_to/ here] and don't bug us.
4.2. Why are WISPs so hostile to community wireless?
- Not all are, but occasionally we run into the odd WISP who will spew fud about Community|Open Wireless Networks.
Just ignore them, they're nothing more than PissAnts. If you're getting tired of all this WISP-oriented silliness in the channel as of late, try irc.personaltelco.net / irc.bcwireless.net / irc.sydneywireless.com
5. General Linux Stuff
5.1. How do I install <blah> package?
Read [http://www.linux.com/article.pl?sid=03/11/26/1337210 this].
5.2. Are there any small linux distros with wireless?
6. Wireless Network Card Questions
6.1. What is the best 802.11b wireless card?
- This is a highly subjective question. It all really depends on what you are going to do with it.
Note: The '+' in the D-Link model number denotes a TI chipset, therefore you should use this ACX100/ACX111 driver. The 11b cards will use ACX100, 11b/g dual-mode radios use the ACX111 version
6.3. What about driverloader / ndiswrapper?
- When all else fails, there are other methods to getting your radio to work under linux. This should be the last resort as functionality is limited and can cause problems. The following link sums it up quite well...
And as far as getting monitor mode to work using this method, you're [http://www.linuxant.com/driverloader/wlan/faq.php#23 SOL]. Have fun.
6.4. Will my Broadcom chipset wireless card work in Linux or *BSD? (Linksys wmp11v2.7 and Dell Truemobile 1180 for example)
A Linux driver for the Broadcom bcm43xx wireless chips: http://bcm43xx.berlios.de/
[https://www.linuxant.com/driverloader/ Check here] for a Windows driver wrapper. (See above)
6.5. Will my Atmel chipset wireless card work in Linux or OS X? (SMC2632W)
Maybe, look at http://atmelwlandriver.sourceforge.net/news.html
There is an [http://www.russotto.net/~russotto/atmelx.html OS-X driver] available as well.
Linksys has published Atmel source code, available from ftp.linksys.com, specifically [ftp://ftp.linksys.com/pub/network/ATMEL_linux_drivers.tar.gz here]. If not, you're probably out of luck. Contact the manufacturer, and failing that, return the product. Side Note - The SMC2632W has 3 Revsions the First Revsion marked by a fcc id of WL1100 is a Prism2 based card and will work with the prism2 drivers. The rev one will say WL1100-1 also it only has one orange colors light. This is the same unit as the US Robotics 2410 card.
6.6. I'd like to try doing ___________ with 802.11b. Will it work?
6.7. Do 802.11a cards work under Linux or *BSD?
OpenBSD has support as well. See the [http://www.openbsd.org/cgi-bin/man.cgi?query=ath manpage]. If you have an unsupported chipset, contact the manufacturer, then return the hardware.
6.8. Do 802.11g cards work under Linux?
- Then just follow these easy step for Linux powered 802.11g bliss.
- 1.) (Assuming you've installed the madwifi drivers from cvs and loaded the 'ath_pci' driver) ifconfig ath0 up 2.) iwconfig ath0 ap xx:xx:xx:xx:xx:xx (this is the mac addy of your ap, you can probably find it with 'iwlist ath0 scan') 3.) iwconfig ath0 channel XX (1-11, whatever your wap is set to) 4.) iwconfig ath0 essid your_essid_here 5.) iwconfig ath0 rate XXMB (your rate here, i.e. 11MB, 54MB) 6.) ifconfig ath0 x.x.x.x OR dhcpcd/dhclient/pump ath0 (for dhcp goodness) 7.) Let Cool and Sprinkle with Powdered Sugar (ok not really)
6.9. I'm trying to use my ________ (prism2 chipset card) under linux, and I can't figure out wlan-ng, help!
6.10. What driver should I use for Linux?
For lucent/orinoco cards use orinoco_cs. Prism2/2.5/3, HostAp is strongly suggested. Cisco/aironet cards, airo_cs. You can get rpms of kernels including hostap at http://www.cat.pdx.edu/~baera/redhat_hostap/ These are using the redhat patched kernel source, with hostap included.
See the links in this [http://wiki.personaltelco.net/index.cgi/WirelessFaq#head-265cfa58c712d56ed01a99829d7a844434878777 section] for more information.
6.11. How do I get my Linksys WPC11 to work under Linux?
6.12. How can I find out what chipset my wireless card uses?
http://madwifiwiki.thewebhost.de/wiki/WifiCards : A list pertaining to devices that use the Atheros chipset, check here for some user feedback.
http://www.mattfoster.clara.co.uk/madwifi-hw.htm : Another list of Atheros radios.
6.13. I want a wireless network scanner under Linux, or help configuring one, please?
For linux the best option is definitely [http://kismetwireless.net Kismet]. Kismet supports a very wide range of cards. See the Kismet [http://kismetwireless.net/documentation.shtml#readme Readme] for more information.
6.14. How do I enable monitor mode with this Orinoco?
Latest information on orinoco radios and enabling rfmon (monitor mode) can be found [http://www.kismetwireless.net/HOWTO-orinoco-drivers.txt here]. And specific notes on 2.6 kernels [http://www.kismetwireless.net/HOWTO-26_Orinoco_Rfmon.txt here]. There is a [http://truffula.net/~forrest/kismetorinoco.shtml guide] to setting up kismet 2.8 using linux 2.4.20 and an orinoco wireless card here.
6.15. Will my USB wireless adapter work under Linux?
Nowadays a lot of USB-wireless adapters are well supported under linux , have a look on [http://linux-wless.passys.nl/query_hostif.php?hostif=USB this] page wich tells chipset/manufacturer are good and bad. It also provide you with the links to the site's where the driver are available.
6.16. How can I find what version of Firmware my Wireless Network card has?
6.17. I want to install some kind of authentication software for my wireless network, can I do that?
6.18. I'm having trouble with my prism card....
Make sure you have the most up-to-date firmware! It's 1.8.4 for most prism versions. See next question.
6.19. What's an easy, reliable way to update the firmware of my prism card?
I (DrDT) have updated the firmware of many different kinds of prism cards using this method (on Windows). It requires modified Senao drivers, the winupdate program, and the correct firmware files for your card. You can find the correct firmware types from this table http://linux.junsun.net/intersil-prism/IDtable.html . Match your "Component ID" (see hostap_diag under linux; or winupdate in windows may show you) against the table and you'll find what primary and secondary firmwares you need. Then you can find the latest primary (pL######.hex, where L is the letter for your primary type) and secondary (sL######.hex, where L is the letter for your secondary type) firmwares on sites such as http://linux.junsun.net/intersil-prism/firmware/
Most people will have cards of type 800C or 8013 in my experience; according to that table those types of cards require a "K" Primary and a "F" secondary. the latest versions of these are at http://linux.junsun.net/intersil-prism/firmware/1.8.2/PK010101.HEX (primary "K" version 1.1.1) and http://linux.junsun.net/intersil-prism/firmware/1.8.4/sf010804.hex (secondary "F" version 1.8.4)
Make sure you have the right type of firmware, and no programs running/problems with your computer during the update. Any small error will permanently kill your prism card! Ask me in the channel if you have questions.
Here's my recommended procedure to update your prism card on Windows:
1) get the Senao prism driver http://www.netgate.com/info/miniPCI/Prism/Drivers/DriverSetup802.zip
2) get the winupdate program http://linux.junsun.net/intersil-prism/WinUpdate-0-7-0.exe
3) get the 2 firmware files which match your card, the primary and secondary according to the info above.
4) After removing any old prism drivers (in add/remove programs usually), install the Senao driver. Then go into your windows inf directory (usually C:\windows\inf\ or C:\winnt\inf) and open the wlannic.inf file. In that file there will be lines near the top starting with "ExcludeFromSelect..." put a ";" character in front of those lines, that way you can choose/force the senao driver for your non-senao prism card.
5a) If you have a PCMCIA card: When you insert your prism pcmcia card, it'll ask for a driver. Select "choose from list" in that box and select the "IEEE 802.11b" manufacturer and the "PCMCIA card" or "PC card" device option. (if you don't see "IEEE 802.11b" to the left as a manufacturer, you didn't install the senao driver of modify wlannic.inf correctly).
5b) If you have a PCI/Mini-PCI card: delete the card from the windows device manager (usually right click my computer -> manage -> "devices") and press the "f5" key to re-detect your hardware. If this doesn't work (no box pops up after f5), restart your computer. When windows asks for a driver, Select "choose from list" in that box and select the "IEEE 802.11b" manufacturer and the "PCI" or "Mini-PCI" device option. (if you don't see "IEEE 802.11b" to the left as a manufacturer, you didn't install the senao driver of modify wlannic.inf correctly).
6) After installing the card, go to your prism card's driver's options and disable the "Firmware Download" option. If you don't do this, the Senao driver will put a newer firmware in the card's RAM (it has a few RAM firmwares built-in), but not its flash, and winupdate will show you the wrong firmware version. Restart your computer afterwards to make sure.
mini-PCI bugnote: a user with a Thinkpad x22 laptop and Mini-PCI prism card still had this RAM firmware problem even though he followed step 6 and rebooted. It seems that the thinkpad kept his card powered throughout the reboot, preventing it from clearing out its RAM firmware. If you have a Mini-PCI card and the RAM firmware is not going away, remove all power (cord & battery) from your laptop for a bit.
7) Install and run the winupdate program. Your card should be automatically selected.
8) Add the 2 fimware files above using the "file" menu. Those 2 files should be listed in the main winupdate box, each having a P or an S icon depending on primary/secondary firmware.
9) We'll check your card's current firmware to make sure we're putting the right stuff on. In Winupdate, go to tools menu and then "query firmware version". Make note of the 2 files listed in that box:
- if the first file starts with an A (instead of P) or the second file starts with R (instead of S) (e.g. RF10... instead of SF10...) it means that your card is using as its firmware a temporary RAM firmware uploaded by the driver. This is bad! review step 6 above to prevent this.
- compare the 2 files listed to be the same types (first *2 letters* are same in each) to the firmware files you downloaded. For example, if you're using the "K" primary and "F" secondary, the files you downloaded would be PK.. and SF..., and the files listed in the winupdate info box would be PK... and SF... If they don't match, you have a problem, stop!
10) Now make sure your PC won't be bothered during the flash procedure (no programs running, etc) and...
- Press the "flash" or "update" button... I forget what it is. Anyways, it'll ask for confirmation and then will start flashing your radio for 2 minutes. If all goes well, your prism card will have the newest and greatest firmware. else, you're screwed and your card is dead :-(. But odds are in your favour!
Again, if there are any questions, ask in the channel.
7. Antennas and stuff
7.1. dB, dBm, dBi, mW, W.... What is all this stuff?
- mW stands for miliwatt, W for watt. Sometimes we talk about watts, but usually we talk about dBm, dB and dBi. Simply put, dBm is the amount of power your radio transmits. dBi is usually the amount of gain your antenna has. You can add dBm and dBi together to find out a rough idea of how much "power" the card and antenna will put out.
For an explanation on the dB stuff, check out the DeciBels page.
7.2. How can I calculate the distance my antenna will have?
hearing a signal of at least 10 dB more than what the receiving radio's http://wiki.freenetworks.org/index.cgi/ReceiveSensitivity is.
You can also use the commands !range, !fsl and !rxsl in the IRC channel to do the math for you.
7.3. What is the best antenna?
7.4. How can I hack an antenna onto my wireless card?
7.5. I want to build my own antenna, where are instructions to do that?
- The cantenna is really the only antenna that is even worth building yourself anymore as antenna prices drop slowly, and we realize what a PITA and a time sink it is to build a quality antenna yourself. But, we do understand the desire to build your own when you first get into this wireless stuff, hell, we did. The cantenna is a waveguide antenna made from a tin can, with a copper wire and an N connector, it can be built in 20 minutes and $5 worth of parts, and will give between 8 and 16 dB of gain have been reported.
Here are instructions for the cantenna: http://www.turnpoint.net/wireless/cantennahowto.html
More antenna designs: [http://wireless.binarywolf.com/ Do-It-Yourself Wireless Antenna Update]
A page whith lots of links about DIY antennas [http://www.paramowifix.net/antenas/EnlacesAntenas.html Http://www.paramowifix.net]
The [http://martybugs.net/wireless/biquad/ biquad] is also an easily constructed antenna, providing about 11dBi gain. A slightly larger variation, the [http://martybugs.net/wireless/biquad/double.cgi double biquad], provides about 13dBi gain. The biquad has a wider beamwidth (~40 degrees) than a cantenna, making it very suitable for wireless stumbling.
For detailed information on constructing a biquad, refer to this page: http://martybugs.net/wireless/biquad/
7.6. What's the deal with reverse polarity (RP) connectors?
- "Reverse polarity connectors have the normal "male" and "female" inner connector parts swapped over so that female contacts are used in the plug connector and male contacts in the jack. Their purpose is to prevent the user from inadvertently plugging in equipment (such as a radio antenna) that differs from the type specified by the manufacturer."
8. Connecting to Networks
8.1. How do I find wireless networks around me?
You can use a utility to scan for networks around you. Some popular utilities are [http://apradar.sf.net ApRadar], [http://netstumbler.com NetStumbler], [http://www.kismetwireless.net/ Kismet] and many more. Take a look at WarDriving and the CategorySoftware page.
8.2. How do I connect to a wireless network?
8.3. How do I hack into my neighbors Wireless Network?
- Knock on his door and ask if you can use his network. He'll be able to help you get on.
8.4. How do I crack WEP?
- see above.
8.5. Why won't someone on #wireless help me crack my, ahh, own network ?
- Unfortunately, we can't verify if you are cracking your own network, or someone elses. We can't and won't be party to a criminal act, and seriously, none of the community wireless groups can do with the resulting negative publicity. Which is a shame, coz cracking your own network is fun.
8.6. What system do I need for 902.10 Wireless on my TV
9. Network Configuration help
9.1. How do I setup my network to automatically get an IP address?
This is currently covered in NetworkCommands.
9.2. What commands do I need to use?
10. Building A HotSpot or Network
10.1. What is a captive portal?
10.2. What captive portal/gateway software is available?
10.3. Where can I find documentation on NoCat?
11. Security Concerns
11.1. How broken is WEP, anyway?
11.2. So what could I use, then?
- You could examine the various device level standards supported by your vendor, such as WPA/802.11i and 802.1x. Also, you might want to consider IPSEC, PPTP, or another VPN solution. These would allow you to secure your own traffic from eavesdroppers, while still allowing open access (without using a seperate AP for a secure channel).
You don't really need any device level encryption however. Using [http://www.gnupg.org/ GPG for email] and https for secure browsing and such would protect you much beter then any device level encryption ever could. It would also offer much more features (like authentication for your email) which are imposible with device level encryption. So don't be fooled in to believing that you are secure and safe with only device level encryption. You're not.