Problems with WEP encryption

Roland Marcus Rutschmann Rutschmann at gmx.de
Wed Nov 12 13:01:27 EST 2003


Hi,

I just got 2 Siemens Intersil wlan cards. One pci (plx) which is in the 
desktop runs with hostap, the other pcmcia in the notebook with either 
orinoco or linux-wlan-ng drivers (which was suggested by the hostap 
documentation if one doesn't want the hostap mode).

Without WEP encryption everything runs fine. But turning on WEP on both 
computers breaks all traffic (even a ping). The green led on the card is 
still not flashing but constantly on implying the cards are still associated. 
This happens with orinoco and linux-wlan-ng driver as well. I looked through 
the archives but most people who had trouble with WEP had it during dynamic 
negotiation or with Windows based programs.

I know that WEP is not the safest thing. But I am still eperimenting and also 
want to get my notbook in other wlans which use WEP. To search for problems 
systematically I first want to get the stuff running at home.

I read quite some docs but am still new to wlan. the hostap_wep module is 
loaded when I got dot encryption via iwconfig wlan0 enc "104Bitkey"
I also checked the key. (I copied them to a file and included them via cut'n 
paste to not make a mistake here).

I attach the kernel messages below. Does anybody have any idea?

Thanks for any help,

Roland

kernel-message of the orinoco_cs driver:
Nov 11 09:25:36 localhost cardmgr[618]: socket 0: Intersil PRISM2 11 Mbps 
Wireless Adapter
Nov 11 09:25:36 localhost kernel: cs: memory probe 0xa0000000-0xa0ffffff: 
clean.
Nov 11 09:25:36 localhost cardmgr[618]: executing: 'modprobe orinoco_cs'
Nov 11 09:25:36 localhost kernel: hermes.c: 5 Apr 2002 David Gibson 
<hermes at gibson.dropbear.id.au>
Nov 11 09:25:36 localhost kernel: orinoco.c 0.11b (David Gibson 
<hermes at gibson.dropbear.id.au> and others)
Nov 11 09:25:36 localhost kernel: orinoco_cs.c 0.11b (David Gibson 
<hermes at gibson.dropbear.id.au> and others)
Nov 11 09:25:36 localhost kernel: cs: IO port probe 0x0100-0x04ff: excluding 
0x4d0-0x4d7
Nov 11 09:25:36 localhost kernel: cs: IO port probe 0x04d8-0x04ff: clean.
Nov 11 09:25:36 localhost kernel: cs: IO port probe 0x0800-0x08ff: clean.
Nov 11 09:25:36 localhost kernel: cs: IO port probe 0x0a00-0x0aff: clean.
Nov 11 09:25:36 localhost kernel: cs: IO port probe 0x0c00-0x0cff: clean.
Nov 11 09:25:36 localhost kernel: eth1: Station identity 001f:0009:0001:0004
Nov 11 09:25:36 localhost kernel: eth1: Looks like an Intersil firmware 
version 1.04
Nov 11 09:25:36 localhost kernel: eth1: Ad-hoc demo mode supported
Nov 11 09:25:36 localhost kernel: eth1: IEEE standard IBSS ad-hoc mode 
supported
Nov 11 09:25:36 localhost kernel: eth1: WEP supported, 104-bit key
Nov 11 09:25:36 localhost kernel: eth1: MAC address 00:90:D1:00:74:D5
Nov 11 09:25:36 localhost kernel: eth1: Station name "Prism  I"
Nov 11 09:25:36 localhost kernel: eth1: ready
Nov 11 09:25:36 localhost kernel: eth1: index 0x01: Vcc 3.3, irq 3, io 
0x0100-0x013f
Nov 11 09:25:36 localhost cardmgr[618]: executing: './network start eth1'

kernel-message from hostap-plx

hostap_crypt: registered algorithm 'NULL'
hostap_plx: 0.1.2 - 2003-11-02 (Jouni Malinen <jkmaline at cc.hut.fi>)
PCI: Found IRQ 9 for device 00:0f.0
PCI: Sharing IRQ 9 with 00:07.3
PCI: Sharing IRQ 9 with 00:07.2
PLX9052 PCI/PCMCIA adapter: mem=0xdffef000, plx_io=0xc800, irq=9, 
pccard_io=0xc400
hostap_plx: CIS: 01 03 00 00 ff 17 ...
hostap_plx: manfid=0x0156, 0x0002
hostap_plx: cor_index=0x1 cor_offset=0x3e0
Prism2/2.5 PC Card detected in PLX9052 adapter
PLX_INTCSR=0x1063
PLX_CNTRL=0x180066d2 (Serial EEPROM present=1)
hostap_plx: Registered netdevice wlan0
prism2_hw_init: initialized in 90 ms
wlan0: trying to read PDA from 0x007f0000: failed
wlan0: trying to read PDA from 0x003f0000: failed
wlan0: trying to read PDA from 0x00390000: OK
wlan0: NIC: id=0x8002 v1.0.0
wlan0: PRI: id=0x15 v0.3.0
wlan0: STA: id=0x1f v0.7.5
wlan0: defaulting to host-based encryption as a workaround for firmware bug in 
Host AP mode WEP
wlan0: defaulting to bogus WDS frame as a workaround for firmware bug in Host 
AP mode WDS


-- 
--------------------------------------------
Roland Marcus Rutschmann <Rutschmann at gmx.net>
gpg-key: http://neuro.psychologie.uni-oldenburg.de/~rutschmann/ich/
--------------------------------------------

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