OSX Change Roaming Preference

By @sskaje
Link: https://sskaje.me/2016/10/osx-change-roaming-preference/

$ sudo /System/Library/PrivateFrameworks/Apple80211.framework/Versions/A/Resources/airport  help
Usage: airport <interface> <verb> <options>

	<interface>
	If an interface is not specified, airport will use the first AirPort interface on the system.

	<verb is one of the following:
	prefs	If specified with no key value pairs, displays a subset of AirPort preferences for
		the specified interface.

		Preferences may be configured using key=value syntax. Keys and possible values are specified below.
		Boolean settings may be configured using 'YES' and 'NO'.

		DisconnectOnLogout (Boolean)
		JoinMode (String)
			Automatic
			Preferred
			Ranked
			Recent
			Strongest
		JoinModeFallback (String)
			Prompt
			JoinOpen
			KeepLooking
			DoNothing
		RememberRecentNetworks (Boolean)
		RequireAdmin (Boolean)
		RequireAdminIBSS (Boolean)
		RequireAdminNetworkChange (Boolean)
		RequireAdminPowerToggle (Boolean)
		WoWEnabled (Boolean)

$ sudo /System/Library/PrivateFrameworks/Apple80211.framework/Versions/A/Resources/airport help

Usage: airport <interface> <verb> <options>

If an interface is not specified, airport will use the first AirPort interface on the system.

<verb is one of the following:

prefs If specified with no key value pairs, displays a subset of AirPort preferences for

the specified interface.

Preferences may be configured using key=value syntax. Keys and possible values are specified below.

Boolean settings may be configured using 'YES' and 'NO'.

DisconnectOnLogout (Boolean)

JoinMode (String)

Automatic

Preferred

Ranked

Recent

Strongest

JoinModeFallback (String)

Prompt

JoinOpen

KeepLooking

DoNothing

RememberRecentNetworks (Boolean)

RequireAdmin (Boolean)

RequireAdminIBSS (Boolean)

RequireAdminNetworkChange (Boolean)

RequireAdminPowerToggle (Boolean)

WoWEnabled (Boolean)

On my macbook pro, default values are:

AirPort preferences for en0:

DisconnectOnLogout=NO
Unable to retrieve JoinMode
JoinModeFallback=DoNothing
RememberRecentNetworks=YES
RequireAdminIBSS=NO
RequireAdminNetworkChange=NO
RequireAdminPowerToggle=NO
WoWEnabled=NO

AirPort preferences for en0:

DisconnectOnLogout=NO

Unable to retrieve JoinMode

JoinModeFallback=DoNothing

RememberRecentNetworks=YES

RequireAdminIBSS=NO

RequireAdminNetworkChange=NO

RequireAdminPowerToggle=NO

WoWEnabled=NO

修改 JoinMode 为 Preferred

sudo /System/Library/PrivateFrameworks/Apple80211.framework/Versions/A/Resources/airport prefs JoinMode=Preferred

1	sudo /System/Library/PrivateFrameworks/Apple80211.framework/Versions/A/Resources/airport prefs JoinMode=Preferred

OSX Change Roaming Preference by @sskaje: https://sskaje.me/2016/10/osx-change-roaming-preference/

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