星期一 一月 07, 2008
星期一 一月 07, 2008
I just released Solaris Atheros driver ath 0.7(source and binary) to
OpenSolaris laptop community. The notable feature of this new version
is ad-hoc(IBSS) mode support. The released package consists of two
parts:
Figure 1 Independent and Infrastructure BSS
On the second laptop, you'll find previously created ad-hoc network in scan results. connect to it as below.
To get these two computers communicated with each other, manually setup IP address for each one as below:
- net80211 module - 802.11 protocol kernel support
- ath v0.7 driver - Atheros driver
With ad-hoc mode support, now you can connect two laptops(PCs) together directly via wireless connection.
What's Ad-Hoc Network
Ad-hoc network is also referred to as Independent BSS(IBSS). Stations
in IBSS network communicate with each other directly. It's in contrast
to Infrastructure BSS (sometimes briefly called BSS), in which a
special node known as access point(AP) manages communication among
other nodes. Below is an illustration.
Figure 1 Independent and Infrastructure BSS
Minimal configuration, flexibility and quick deployment make ad-hoc
networks suitable for emergency solution. One typical use is to create
an ad-hoc network for sharing data in a conference room to support the
meeting. When the meeting ends, the ad-hoc network is dissolved.
How to Configure
Ath 0.7 requires OpenSolaris build 68 or later version.
Firstly, download and install ath 0.7.
# wget http://opensolaris.org/os/community/laptop/downloads/ath-0.7-pkg.tar.gz
# gunzip -c ath-0.7-pkg.tar.gz | tar xf -
# pkgadd -d ./SUNWatheros SUNWatheros
On the first laptop, create an IBSS with specific ESSID(wireless
network name) and WEP encryption. Even WEP is proved to be unsafe, it's
better than none.# gunzip -c ath-0.7-pkg.tar.gz | tar xf -
# pkgadd -d ./SUNWatheros SUNWatheros
# ifconfig ath0 plumb
# wificonfig -i ath0 setparam createibss=yes essid=mywifi encryption=wep wepkey1=1234567890
Currently, dladm doesn't support IBSS mode. So please use wificonfig to create and connect to an ad-hoc network.# wificonfig -i ath0 setparam createibss=yes essid=mywifi encryption=wep wepkey1=1234567890
On the second laptop, you'll find previously created ad-hoc network in scan results. connect to it as below.
# wificonfig scan
# wificonfig -i ath0 setparam essid=mywifi bsstype=ibss encryption=wep wepkey1=1234567890
Now the two computers are connected via ad-hoc network.# wificonfig -i ath0 setparam essid=mywifi bsstype=ibss encryption=wep wepkey1=1234567890
To get these two computers communicated with each other, manually setup IP address for each one as below:
# ifconfig ath0 192.168.xxx.xxx netmask + up
Ok, here you go.Known Issue
Solaris IBSS doesn't support WPA yet. Also it's not on our todo list. If it's an important feature for you, please drop a note to OpenSolaris laptop community.
星期一 十一月 26, 2007
802.11n简介[Read More]
星期二 九月 11, 2007
无线局域网（Wireless Local Area Network）指的是利用无线射频（RF）技术组建局域网。它包括红外（IrDA）、蓝牙（BlueTooth）、IEEE802.11等技术。IEEE802.11也常常被称为Wi-Fi（Wireless Fidelity）。本文将主要介绍Solaris对IEEE802.11的支持。
相比Solaris 10而言。OpenSolaris的一个新增特性就是添加了对WLAN的支持。这包括：
相比Solaris 10而言。OpenSolaris的一个新增特性就是添加了对WLAN的支持。这包括：
- 核心中添加了对IEEE802.11协议的支持
- 一组足以覆盖当前流行的IEEE802.11无线网卡的驱动程序
- GUI及命令行配置工具