madwifi, F9, atheros 5413 cards

PH mooraa phmooraa at gmail.com
Mon Oct 27 18:14:57 UTC 2008


Hi All,

--
reposting the question on this forum because I think the problem is with
Fedora not madwifi
--

I am trying to use Adhoc mode with AR5413 card (5006 chipset) with following
-

#uname -a
Linux localhost.localdomain 2.6.25-14.fc9.i686 #1 SMP Thu May 1 06:28:41 EDT
2008 i686 athlon i386 GNU/Linux

There are 2 machines running F9/madwifi and having same cards in adhoc mode.
(livna - madwifi-0.9.4-1.lvn9.i386, kmod-madwifi-0.9.4-31.lvn9.i686,
kmod-madwifi-2.6.25-14.fc9.i686-0.9.4-31.lvn9.i686,
madwifi-devel-0.9.4-1.lvn9.i386)

In adhoc mode, they associate with each other (same cell ID) but are not
able to further communicate. ath0 interface created on top of wifi0 does not
receive any packets but wifi0 do receive. I am not able to ping one from
another. routes are set.

#iwconfig
ath0      IEEE 802.11g  ESSID:"wmnad"  Nickname:"localhost.localdomain"
          Mode:Ad-Hoc  Frequency:2.412 GHz  Cell: 02:02:6F:51:77:3A
          Bit Rate:0 kb/s   Tx-Power:15 dBm   Sensitivity=1/1
          Retry:off   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=46/70  Signal level=-41 dBm  Noise level=-87 dBm
          Rx invalid nwid:7069  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

#ifconfig
ath0      Link encap:Ethernet  HWaddr 00:02:6F:51:77:3A
          inet addr:11.11.11.1  Bcast:11.11.11.255  Mask:255.255.255.0
          inet6 addr: fe80::202:6fff:fe51:773a/64 Scope:Link
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:527 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:23013 (22.4 KiB)

wifi0     Link encap:UNSPEC  HWaddr
00-02-6F-51-77-3A-F4-AF-00-00-00-00-00-00-00-00
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:233405 errors:0 dropped:0 overruns:0 frame:41464
          TX packets:18774 errors:25 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:199
          RX bytes:33609299 (32.0 MiB)  TX bytes:1602695 (1.5 MiB)

On both machines ath0 RX packets remains 0 and I don't know why is this
happening!!! Can someone please help..

I think that there no problems with ath_pci loading as can be seen -

#dmesg
ath_hal: module license 'Proprietary' taints kernel.
ath_hal: 0.9.18.0 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413)
..
wlan: 0.9.4
ath_pci: 0.9.4
..
ath_rate_sample: 1.2 (0.9.4)
wifi0: 11a rates: 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
wifi0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps
wifi0: 11g rates: 1Mbps 2Mbps 5.5Mbps 11Mbps 6Mbps 9Mbps 12Mbps 18Mbps
24Mbps 36Mbps 48Mbps 54Mbps
wifi0: H/W encryption support: WEP AES AES_CCM TKIP
wifi0: mac 10.4 phy 6.1 radio 6.3
wifi0: Use hw queue 1 for WME_AC_BE traffic
wifi0: Use hw queue 0 for WME_AC_BK traffic
wifi0: Use hw queue 2 for WME_AC_VI traffic
wifi0: Use hw queue 3 for WME_AC_VO traffic
wifi0: Use hw queue 8 for CAB traffic
wifi0: Use hw queue 9 for beacons
wifi0: Atheros 5212: mem=0xfdef0000, irq=18
..
ath0: no IPv6 routers present
ADDRCONF(NETDEV_UP): ath0: link is not ready
ADDRCONF(NETDEV_CHANGE): ath0: link becomes ready
ath0: no IPv6 routers present
ath0: no IPv6 routers present

My configuration file for interface is like -

#cat ifcfg-ath0
# Please read /usr/share/doc/initscripts-*/sysconfig.txt
# for the documentation of these parameters.
TYPE=Wireless
DEVICE=ath0
HWADDR=00:02:6f:51:77:3a
BOOTPROTO=none
NETMASK=255.255.255.0
DHCP_HOSTNAME=
IPADDR=11.11.11.1
DOMAIN=
ONBOOT=no
USERCTL=no
PEERDNS=yes
IPV6INIT=no
ESSID=cwmnad
CHANNEL=1
MODE=Ad-Hoc
RATE=auto
ENCRYPTION=off
SECURITYMODE=off
IWPRIV="authmode 1"

In last 3 lines, I overdid security because initially I thought the problem
is due to authentication. I don't want any security at this point.

[ Other tests -
- the same card works in managed mode and connects to my building's WLAN AP.
This makes me wonder more what I doing wrong.
- same cards with madwifi 0.9.4 works on Ubuntu in ad-hoc mode which shows
that something in Fodora is going wrong. I really like F9 and really don't
want to switch to ubuntu. ]


Any help is really appreciated.

Thanks in advance,
phm
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