What does "freq=0 MHz" mean?

[James J. Ramsey]

When I look at the messages from my failed attempts to
authenticate with wpa_supplicant, I notice the
following:

Selecting BSS from priority group 0
0: 00:40:96:47:ae:49 ssid='tsunami' wpa_ie_len=0
rsn_ie_len=0 caps=0x11
   skip - no WPA/RSN IE
1: 00:40:96:51:86:24 ssid='tsunami' wpa_ie_len=0
rsn_ie_len=0 caps=0x11
   skip - no WPA/RSN IE
2: 00:40:96:47:87:66 ssid='tsunami' wpa_ie_len=0
rsn_ie_len=0 caps=0x11
   skip - no WPA/RSN IE
3: 00:40:96:40:56:94 ssid='tsunami' wpa_ie_len=0
rsn_ie_len=0 caps=0x11
   skip - no WPA/RSN IE
4: 00:40:96:51:79:0c ssid='tsunami' wpa_ie_len=0
rsn_ie_len=0 caps=0x11
   skip - no WPA/RSN IE
   selected non-WPA AP 00:40:96:47:ae:49
ssid='tsunami'
Trying to associate with 00:40:96:47:ae:49
(SSID='tsunami' freq=0 MHz)

What is the significance of "freq=0 MHz"? The
frequency should be 2.462 GHz for that particular
access point.

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