WEP fails with Unsupported authentication algorithm (7820)

Sergey Matyukevich geomatsi at gmail.com
Mon Aug 10 15:39:12 EDT 2020

> > Coud you please clarify which combination of kernel/wpa_ did work on
> > your setup ? Did your WEP setup worked with new kernel and old wpa_s ?
> > 
> > I could not reproduce similar behavior using hwsim and AP and STA both
> > operated by wpa_s. What kind of client are you using ? Is it possible
> > to configure auth_alg on your client ?
> > 
> > If you can configure auth_alg on both AP and STA, then could you please
> > try explicitly specify the same auth_alg on both sides. For this purpose
> > you may set auth_alg=OPEN or auth_alg=SHARED in wpa_supplicant configs
> > for both AP and STA network configurations. If client configuration is
> > beyond your control, then could you please try explictly both auth_alg
> > options on AP side.


> Are you sure wep is enabled in the build (CONFIG_WEP=y)? Seems wep is
> becoming obsolete and will be disabled in the future.

According to the attached verbose log the answer is yes. Otherwise
shared secret authentication would not appear in log:

"authentication (shared key, transaction 1)"


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