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« : 29.09.07 - klo:19.31 »
Eli hallussa otsikon mukainen wlan-kortti jossa näyttäisi olevan rtl8185-piiri. Kortin mukana tuli CD:llä ajurit Linuxiin jotka yritin asentaa. Ei onnistunut. Netistä etsin hieman ja näyttää tämän piirisarjan kanssa olevan muillakin ongelmia. Kellään ideoita? Kyseessä on siis Xubuntu 6.06. Alla hieman lisätietoa:
lspci:
0000:06:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.: Unknown device 8185 (rev 20)
ifconfig:
wlan0 Link encap:Ethernet HWaddr 00:1A:9F:91:86:B1
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:4842 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:203364 (198.5 KiB)
Interrupt:11 Memory:d09ee000-d09ee100
Ja sitten vielä ajurien asennuksesta:
RTL8185 Linux Driver v1024.0302.2007 for linux kernel 2.6
- Support Client mode for either infrastructure or adhoc mode
- Support WEP and WPAPSK/WPA2PSK connection
===============================================================================================
< Component >
The driver is composed of several parts:
(1)source code
rtl8185.tar.gz
stack.tar.gz
(2)Script ot build the modules
makedrv
(3)Script to load/unload modules
wlan0up
wlan0down
(4)Script and configuration for DHCP
wlan0dhcp
ifcfg-wlan0
(5)Supplicant source code
wpa_supplicant-0.4.9.tar.gz
(6)Example of supplicant configuration file
wpa1.conf
< Installation >
Running the scripts can finish all operations of building up modules from source code and start the nic:
(1)Build up the driver from the source code
./makedrv
(2)Load the driver module to kernel and start up nic
./wlan0up
(if "insmod: error inserting 'r8180.ko': -File exists." met,
./wlan0rmv
./wlan0down
./wlan0up
should be OK.
)
(3)Refer to < Set wireless lan MIBs > to set Wireless LAN specific parameters.
< Set wireless lan MIBs >
This driver uses Wireless Extension as an interface allowing you to set
Wireless LAN specific parameters.
Current driver supports "iwlist" to show the device status of nic
iwlist wlan0 [parameters]
where
parameter explaination [parameters]
----------------------- -------------
Show available chan and freq freq / channel
Show and Scan BSS and IBSS scan[ning]
Show supported bit-rate rate / bit[rate]
Show Power Management mode power
For example:
iwlist wlan0 channel
iwlist wlan0 scan
iwlist wlan0 rate
iwlist wlan0 power
Driver also supports "iwconfig", manipulate driver private ioctls, to set MIBs.
iwconfig wlan0 [parameters] [val]
where
parameter explaination [parameters] [val] constraints
----------------------- ------------- ------------------
Connect to AP by address ap [essid]
Set the essid, join (I)BSS essid [mac_addr]
Set operation mode mode {Managed|Ad-hoc}
Set keys and security mode key / enc[ryption] {N|open|restricted|off}
For example:
iwconfig wlan0 ap XX:XX:XX:XX:XX:XX
iwconfig wlan0 essid "ap_name"
iwconfig wlan0 mode Ad-hoc
iwconfig wlan0 mode essid "name" mode Ad-hoc
iwconfig wlan0 key 0123456789 [2] open
iwconfig wlan0 key off
iwconfig wlan0 key restricted [3] 0123456789
< Getting IP address >
After start up the nic, the network needs to obtain an IP address before transmit/receive data.
This can be done by setting the static IP via "ifconfig wlan0 IP_ADDRESS" command, or using DHCP.
If using DHCP, setting steps is as below:
(1)connect to an AP via "iwconfig" settings
iwconfig wlan0 essid [name] or
iwconfig wlan0 ap XX:XX:XX:XX:XX:XX
(2)run the script which run the dhclient
./wlan0dhcp
or
dhcpcd wlan0
(Some network admins require that you use the
hostname and domainname provided by the DHCP server.
In that case, use
dhcpcd -HD wlan0)
< WPAPSK >
WPA_SUPPLICANT help the network to communicate under the protection of WPAPSK mechanism
(1)Unpack source code of WPA supplicant:
tar -zxvf wpa_supplicant-0.4.9.tar.gz
cd wpa_supplicant-0.4.9
(2)Create .config file:
cp defconfig .config
(3)Edit .config file, uncomment the following line:
#CONFIG_DRIVER_IPW=y.
(4)Build WPA supplicant:
make
If make error for lack of <include/md5.h>, install the openssl lib:
1. Install the openssl lib from corresponding installation disc:
Fedora Core 2/3/4/5(openssl-0.9.71x-xx), Mandrake10.2/Mandriva10.2(openssl-0.9.7x-xmdk),
Debian 3.1(libssl-dev), Suse 9.3/10.0/10.1(openssl_devl), Gentoo(dev-libs/openssl), etc.
2. Download the openssl open source package from www.openssl.org, build and install it.
(5)Edit wpa_supplicant.conf to set up SSID and its passphrase.
For example, the following setting in "wpa1.conf" means SSID to join is "BufAG54_Ch6"
and its passphrase is "87654321".
network={
ssid="BufAG54_Ch6"
proto=WPA
key_mgmt=WPA-PSK
pairwise=CCMP TKIP
group=CCMP TKIP WEP104 WEP40
psk="87654321"
priority=2
}
Note: 1. proto=WPA for WPA, proto=RSN for WPA2.
2. If you want to connect an AP which works under WPA2 mixed mode, you'd better
use Realtek customed wpa_supplicant package.
(6)Execute WPA supplicant (Assume 8185 and related modules had been loaded):
./wpa_supplicant -D ipw -c wpa1.conf -i wlan0 &
./makedrv meni vielä hienosti, warningeja tuli kyllä, mutta sitten seuraavassa vaiheessa:
tuomas@ubuntu:~/Wlan-ajurit/rtl8185_linux_26.1024.0302.2007$ sudo ./wlan0up
insmod: error inserting 'ieee80211-rtl.ko': -1 File exists
insmod: error inserting 'r8180.ko': -1 Unknown symbol in module
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