LinuxQuestions.org
LinuxAnswers - the LQ Linux tutorial section.
Go Back   LinuxQuestions.org > HCL > Network Cards > Cisco
User Name
Password

Notices

Search · Register · Submit New Product ·
 

Cisco Systems AIR-CB21AG-A-K9
Reviews Views Date of last review
1 27751 03-26-2011
spacer
Recommended By Average Price Average Rating
100% of reviewers None indicated 10.0



Description: This card works on Redhat 9 with installation kernel (2.4.20-8).

One small hack is that you have to edit your kernel source but, don't have to re-compile it.

Basically follow these instructions ***
http://madwifiwiki.thewebhost.de/wik...cC54COnRedHat9

However, look towards the bottom where "Peter" says to add

#include
#include

to the /usr/src/linux-2.4.20-8/include/linux/modversions.h file

Then make, make install your madwifi source

This worked for me.

I still need to figure out if WPA or encryption works.
Keywords: cisco wireless 802.11a 802.11b 802.11g linux madwifi drivers redhat9 atheros
/sbin/lspci output: 02:02.0 Ethernet controller: Atheros Communications, Inc. AR5211 802.11ab NIC (rev 01)
Chipset: atheros
Connection Type: PCMCIA


Author
Post A Reply 
Old 03-26-2011, 03:44 AM   #1
AwesomeMachine
 
Registered: Jan 2005
Distribution: Debian Testing; OpenSuSE 12.1; Fedora 17
Posts: 1,541

Rep: Reputation:
Would you recommend the product? yes | Price you paid? (in USD): None indicated | Rating: 10

Kernel (uname -r): 2.6.37
Distribution: Debian Sid



This is the most rock-stable card on the planet. It works with Debian Sid 2.6.37 out-of-the-box! The card has every feature imaginable, including international roaming, but there does not exist a configuration program that fully exploits the capabilities of this PCMCIA wireless NIC.

But here's the greatest part: inside the card, to the left of the LEDs are external antenna connectors. You have to custom modify the plastic casing with a razor knife to get at the connectors, but once you do you've got a 2.4 and 5 Ghz wireless broadcasting station.

Just keep the high gain antennas at least 10 feet away from humans and pets. I had one about 8 inches away from my face, and that side of my head heated up.

These are microwaves, kids, so wear your aluminum foil helmets. I bought 40 of these cards. You can use them for literally every, or many, high frequency radio projects.

I just plug in the card, and it works. I didn't mess around with manual configuration. Wicd just picks it up and you're connected! My mini-pci card dropped the signal if I sneezed too hard.

My external USB card picks up a better signal, but it's slow as all get-out. This card is fast as hell.

Check out this error rate! I'm doing an update of a local Debian mirror:

wlan2 Link encap:Ethernet HWaddr 00:40:96:00:00:00:00
inet addr:192.168.1.198 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::240:00:00:00/5.5 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2596361 errors:0 dropped:0 overruns:0 frame:0
TX packets:1377582 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3863265879 (3.5 GiB) TX bytes:117623178 (112.1 MiB)

3.5 GIGABYTES, AND NOT A SINGLE ERROR!! And I'm 100 feet away from tha access point, and the signal is traveling through 2 ceilings and some metal duct work. And that's using an unmodified card.
 




  



All times are GMT -5. The time now is 04:48 AM.

Main Menu

My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: @linuxquestions
Open Source Consulting | Domain Registration