Re: Can hostap allow association request with any ESSID?

From: Pedro Estrela (
Date: 2002-09-26 22:42:03 UTC

As far as i know, it isn't possible. Each AP uses only one ESSID to define the L2 network name, and it's up to the clients to choose which network will they associate.
Also note that "ANY" isn't a "valid" network name; it's just an "wildcard" used until the client associates to one single network; afterwards, the client always uses that chosen ESSID for all operations.

Pedro Estrela

> I know if you set ESSID to "ANY" in client drivers (including
> hostap I believe. True?) then the client can associate with
> any nearby AP.
> I like to do the reverse with hostap in master mode. In other words,
> I want hostap to allow association from a client that has arbitrary ESSID.
> I tried to set "ANY" as the ESSID when hostap runs in master mode.
> And got an error message. See below.
> Is there a way to do what I want to do? Or at least is this
> even possible? Thanks.
> Jun
> [root_at_jstest1 Prism2-2002-05-19]# iwconfig wlan0 essid ANY
> Error for wireless request "Set ESSID" (8B1A) :
> SET failed on device wlan0 ; Invalid argument.

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