Project Evil & ACX100-based cards (D-Link DWL-520+)

Maxim Sobolev sobomax at
Tue Jun 22 07:33:26 GMT 2004

OK, step by step:

1. cvsup ~1 hour ago
2. built/installed new kernel, rebooted
3. loaded ndis and if_ndis.ko modules:

ndis0: <D-Link AirPlus DWL-520+ Wireless PCI Adapter> port 0xa800-0xa81f 
mem 0xf2000000-0xf200ffff,0xf2011000-0xf2011fff irq 11 at device 6.0 on pci3
ndis0: NDIS API version: 5.1
ndis0: Ethernet address: 00:0d:88:8b:7f:1c
ndis0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps 11Mbps

4. Configured the interface:

-bash-2.05b$ sudo ifconfig ndis0 mediaopt adhoc
-bash-2.05b$ sudo ifconfig ndis0 ssid "portaone"
-bash-2.05b$ sudo ifconfig ndis0 wepmode off
-bash-2.05b$ sudo ifconfig ndis0
ndis0: link up
-bash-2.05b$ ifconfig ndis0
         inet netmask 0xffffff00 broadcast
         ether 00:0d:88:8b:7f:1c
         media: IEEE 802.11 Wireless Ethernet autoselect (autoselect 
         status: associated
         ssid ""
         channel -1 authmode OPEN powersavemode OFF powersavesleep 100
         rtsthreshold 2312 protmode CTS
         wepmode OFF weptxkey 1

Then I'm trying to connect to that network from my WinXP laptop. I can 
see network portaone in wireless networks browser just fine. IP address 
on appropriate interface is configured statically in WinXP to be I can connect to it also without any problems, but ping 
doen't work between those machines. Also, where I start tcpdump on the 
FreeBSD machine I don't see any traffic even ARPs.

You can find tarball with my ndis_driver_data.h and files from 
/compat/ndis at Please 
let me know if any other information is necessary.

Thank you very much!



Bill Paul wrote:
>>Hi Bill,
>>I'm trying to make my D-Link DWL-520+ card working with if_ndis, but no 
>>luck yet. The card is correctly detected, driver attaches to it. If I 
>>configure it in the adhoc mode it is seen from the nearby machine and 
>>connected to, but traffic doesn't flow. :-(
>>Any ideas? Please let me know if more information is necessary.
> Alright, I received a sample 520+ card and played with it a little.
> I was able to get the card to talk to my RealTek 8180 NIC in my laptop
> in ad-hoc mode with very little trouble. I am therefor forced to conclude
> that you did not describe your problem with enough detail for me to
> understand what's going on. Let's examine the things you did not do:
> - did not provide a transcript of commands/responses used to initialize
>   _both_ cards
> - did not explain which NIC was initialized first (the first NIC is
>   always the master in an ad-hoc cell)
> - did not explain exactly what steps were taken to reach the conclusion
>   that "traffic doesn't flow." (Ping? FTP? Slamming machines together
>   at high speed?)
> - did not explain how it was determined that the card was "seen from
>   the nearby machine"
> - did not provide _FULL_ dmesg output from both machines (no, it's not
>   enough to tell me "the card is correctly detected")
> - did not tell me what make/model card was in the other machine and
>   what driver it uses
> - did not tell me what version of FreeBSD is running on the "nearby
>   machine" 
> - did not run wicontrol -i ndis0 -l on the first machine to scan for
>   APs/ad-hoc nets
> I keep telling people to provide LOTS OF DETAILS when they report
> problems, but nobody ever seems to listen. Don't wait for me to drag
> information out of you: if you don't provide me with LOTS OF DETAILS
> up front, I won't know what to ask you.
> -Bill
> --
> =============================================================================
> -Bill Paul            (510) 749-2329 | Senior Engineer, Master of Unix-Fu
>                  wpaul at | Wind River Systems
> =============================================================================
>               <adamw> you're just BEGGING to face the moose
> =============================================================================

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