Perle Systems 5500161-40 Default 1 minute, Roaming Callback, Challenge Interval, Address/Control

Serial Port Profiles

Authentication	The timeout, in minutes, during which successful PAP or CHAP authentication
Timeout	must take place (when PAP or CHAP are specified). If the timer expires before
	the remote end has been authenticated successfully, the link will be terminated.
	Range: 1-255
	Default: 1 minute
Roaming Callback	A user can enter a telephone number that the IOLAN will use to callback
	him/her. This feature is particularly useful for a mobile user. Roaming callback
	can only work when the User Enable Callback parameter is enabled. Enable
	Roaming Callback therefore overrides (fixed) User Enable Callback.To use
	Enable Roaming Callback, the remote end must be a Microsoft Windows OS
	that supports Microsoft’s Callback Control Protocol (CBCP). The user is
	allowed 30 seconds to enter a telephone number after which the IOLAN ends
	the call.
	Default: Disabled
Challenge Interval	The interval, in minutes, for which the IOLAN will issue a CHAP re-challenge
	to the remote end. During CHAP authentication, an initial CHAP challenge
	takes place, and is unrelated to CHAP re-challenges. The initial challenge takes
	place even if re-challenges are disabled. Some PPP client software does not
	work with CHAP re-challenges, so you might want to leave the parameter
	disabled in the IOLAN.
	Range: 0-255
	Default: 0 (zero), meaning CHAP re-challenge is disabled
Address/Control	This determines whether compression of the PPP Address and Control fields
Compression	take place on the link. For most applications this should be enabled.
	Default: Enabled
Protocol	This determines whether compression of the PPP Protocol field takes place on
Compression	this link.
	Default: Enabled
VJ Compression	When enabled, Van Jacobson Compression is used on this link. If your user is
	authenticated by the IOLAN, this VJ compression value will be overridden if
	you have enabled the User, Enable VJ Compression parameter. If the user is
	authenticated by RADIUS and the RADIUS parameter Framed-Compression
	is set in the RADIUS file, the IOLAN will use the value in the RADIUS file in
	preference to the value configured here.
	Default: Enabled
Magic Negotiation	Determines if a line is looping back. If enabled (On), random numbers are sent
	on the link. The random numbers should be different, unless the link loops
	back.
	Default: Disabled
IP Address	Specifies whether or not IP address negotiation will take place. IP address
Negotiation	negotiation is where the IOLAN allows the remote end to specify its IP
	address. When On, the IP address specified by the remote end will be used in
	preference to the Remote IP Address set for a Serial Port. When Off, the
	Remote IP Address set for the Serial Port will be used.
	Default: Disabled

160 IOLAN SDS/SCS/STS/MDC User’s Guide, Version 4.0