[Madwifi-devel] Unable to configure MadWifi as a simple AP on Ubuntu

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From: Aditya Bhave
Date: Thursday, May 20, 2010 - 2:09 pm

Hi,

Im trying to configure MadWifi as an AP on laptop A and connecting a 
client from laptop B. Although the station B associates correctly, Im 
unable to even do a simple ping to the AP

Here is my configuration

Laptop A: Lenovo Thinkpad
Card: lshw -C network
        description: interface
        product: Atheros AR5001X+ Wireless Network Adapter
        vendor: Atheros Communications Inc.
        physical id: 0
        bus info: pci@0000:16:00.0
        logical name: wifi0
        version: 01
        serial: 00:0b:6b:20:40:dd
        width: 32 bits
        clock: 33MHz
        capabilities: bus_master cap_list logical
        configuration: broadcast=yes driver=ath_pci latency=96 
maxlatency=28 mingnt=10 multicast=yes
        resources: irq:16 memory:c4000000-c400ffff

Here is the script I used to create an AP
/*********
#!/bin/sh

sudo modprobe -r ath5k || true
sudo modprobe -r ath9k || true
sudo modprobe -r ath_pci || true
sudo modprobe ath_pci autocreate=none

sudo wlanconfig ath1 destroy || true
sudo wlanconfig ath1 create wlandev wifi0 wlanmode ap    # set up the AP
sudo iwpriv ath1 mode 3                    # 11g mode
sudo iwconfig ath1 essid "Aditya"      # essid
sudo iwconfig ath1 key off                # no wep
sudo iwconfig ath1 enc off                # no wep
sudo iwpriv ath1 wpa 0                    # no wpa

sudo ifconfig ath1 up
sleep 1
sudo ifconfig ath1 192.168.1.1 netmask 255.255.255.0

sudo sysctl -w dev.wifi0.diversity=0
sudo sysctl -w dev.wifi0.txantenna=1
sudo sysctl -w dev.wifi0.rxantenna=
************************/

Laptop B: Dell Inspiron
Card: description: Wireless interface
       product: AR928X Wireless Network Adapter (PCI-Express)
       vendor: Atheros Communications Inc.
       physical id: 0
       bus info: pci@0000:0c:00.0
       logical name: wifi0
       version: 01
       serial: 00:15:6d:84:35:8e
       width: 64 bits
       clock: 33MHz
       capabilities: bus_master cap_list logical ethernet physical ...
From: Venkat Ch
Date: Friday, May 21, 2010 - 4:24 am

Can you please send the output of "iwconfig" and "route -n" at both STA and
AP.


Thanks & Regards
Venkata Rao chimata




-- 
Peace is its own reward
From: Venkat Ch
Date: Friday, May 21, 2010 - 11:06 pm

Hi Aditya,

  It is an issue with routing that is causing the ping problem. Your
wireless settings are fine.

Please do the following. This is a simple setup that will work. Once you
make this work, you can proceed further adding other interfaces.

At AP:
---------

route del -net 192.168.0.0 netmask 255.255.255.0
ifconfig ath1 192.168.1.1 netmask 255.255.255.0

AT STA:
-----------
ifconfig ath1 192.168.1.10 netmask 255.255.255.0


If you see any issues, send the output of the commands of iwconfig and route
-n on both sides again.

Thanks & Regards
Venkat




-- 
Peace is its own reward
From: Aditya Bhave
Date: Tuesday, May 25, 2010 - 10:07 am

Hi,

The same problem is coming. Each of my laptops has an inbuilt 
non-Atheros WiFI card called wlan0 and an external PCMCIA-based Atheros 
card. To keep things simple, I disabled wlan0 using ifconfig wlan0 down. 
Here are the relevant command outputs

/*****************************************************************/
At the AP

ayb@AdLenovoLinux:~$ ifconfig
ath0      Link encap:Ethernet  HWaddr 06:0b:6b:20:72:f6
           inet addr:192.168.1.1  Bcast:192.168.1.255  Mask:255.255.255.0
           inet6 addr: fe80::40b:6bff:fe20:72f6/64 Scope:Link
           UP BROADCAST MULTICAST  MTU:1500  Metric:1
           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
           TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:0
           RX bytes:0 (0.0 B)  TX bytes:1721 (1.7 KB)

eth0      Link encap:Ethernet  HWaddr 00:24:7e:11:b6:09
           UP BROADCAST MULTICAST  MTU:1500  Metric:1
           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:1000
           RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
           Memory:fc000000-fc020000

lo        Link encap:Local Loopback
           inet addr:127.0.0.1  Mask:255.0.0.0
           inet6 addr: ::1/128 Scope:Host
           UP LOOPBACK RUNNING  MTU:16436  Metric:1
           RX packets:74065 errors:0 dropped:0 overruns:0 frame:0
           TX packets:74065 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:0
           RX bytes:3008539 (3.0 MB)  TX bytes:3008539 (3.0 MB)

wifi0     Link encap:UNSPEC  HWaddr 
00-0B-6B-20-72-F6-00-00-00-00-00-00-00-00-00-00
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           RX packets:6270 errors:0 dropped:0 overruns:0 frame:57740
           TX packets:2042 errors:342 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:199
           RX bytes:897647 (897.6 KB)  TX bytes:181270 (181.2 KB)
       ...
Previous thread: [Madwifi-devel] Minstrel does not set ni_txrate by Joerg Pommnitz on Tuesday, May 18, 2010 - 4:57 am. (1 message)

Next thread: Re: [Madwifi-devel] Madwifi-devel Digest, Vol 48, Issue 3, Message 1 by sritej s on Thursday, May 20, 2010 - 3:38 pm. (4 messages)