From: Alex Kirk (alexschnarff.com)
Date: Mon Dec 06 2004 - 06:58:28 CST

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::Ding:: We have a winner!

Pedro, thank you very much for your almost 100% correct response. While software
WEP did not allow me to use a properly sized encryption key, the moment I synced
up keys on the Slackware box and the OpenBSD box, things worked like a charm.
Excellent!

Since you've demonstrated yourself an expert on this topic, and mentioned that
I'm likely to need to upgrade my firmware anyway, let me quickly ask you one
more question: any tips on upgrading the firmware on a non-Windows box? If not,
I can find a Windows box to use, but if you do know of a good way to do so on an
OpenBSD/Linux box, that'd make life a lot easier.

Thanks again!

Alex Kirk

> > I've configured the OpenBSD system to match all of the settings on the
> > Slackware box, with the exception of WEP (this particular card doesn't
> > like key strings over 13, and the key I have running on the network is a
> bit
> > longer);
>
> Have you tried software-based WEP?
>
> > however, I've set the Slackware system to run in open mode, so that it
> will
> > deal with unencrypted packets as well.
>
> I think this is the core of your problem. The Slackware box looks like it's
> encrypting outbound frames (even when responding to unencrypted ones).
>
> > wi0: PRISM2 HWB3163 rev.B, Firmware 0.3.0 (primary), 0.7.6 (station),
>
> I think you will ultimately end up needing to upgrade the firmware on this
> card anyway. However, basic functionality should work either way.
>
> > (tcpdump from OpenBSD box)
> > 20:40:36.912650 192.168.1.42 > 192.168.1.1: icmp: echo request
> > 20:40:36.915366 0:5:5d:ee:5f:78 sap b8 > 0:80:c6:e3:72:2c sap 6f I
> > (s=78,r=0,R) len=96
> > 20:40:37.920545 192.168.1.42 > 192.168.1.1: icmp: echo request
> > 20:40:37.923152 0:5:5d:ee:5f:78 sap b8 > 0:80:c6:e3:72:2c sap 6f I
> > (s=78,r=0,R) len=96
>
> I suspect the responses (AP -> OpenBSD) are WEP encrypted.
>
> > Obviously, something is wrong with the way this card is handling inbound
> > packets -- especially since stats from wicontrol -o show that, when pings
> > are sent to it, the number of unicast frames received is incremented.
>
> I think it's not the OpenBSD host, the Slackware box appears to be sending it
>
> WEP encrypted frames.
>
> > Whew...now that I've said all that...does anyone have any idea what the
> > problem might be here? Do I need to do some sort of a firmware upgrade on
> my
> > Sohoware card (if so, any ideas how, since I'm not a Windows box)? Have I
> > messed up my settings for the card? Any thoughts at all would be greatly
> > appreciated.
>
> I suspect if you fix the wep settings on the OpenBSD box all will be fine.

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