ZyXEL Communications 100IH manual 64/128, Dial-In IP Address Supplied By Dial-in User is set to

Prestige 100 and 100IH ISDN Router and Router/Hub

PAP Password	This field is applicable only if the Mutual Authen. Field is
	set to Yes. Enter in the PAP password to be used to
	respond to the far end’s authentication request. This field
	does not apply to CHAP authentication.
Multiple Link Options:
Max Trans Rate	Enter the maximum data transfer rate between your	64/128
	Prestige and the remote dial-in user. 64 - At most, one B
	channel is used. 128 - A maximum of two channels can
	be used. When the Prestige calls back to the remote
	dial-in user, the maximum data transfer rate is always 64.
Callback Budget
Management:
Allocated Budget (min)	This field sets the budget callback time for all the remote	Default = 0
	dial-in users. The default for this field is 0 for no budget
	control.
Period (hr)	This field sets the time interval to reset the above
	callback budget control.
IP Address Supplied By:
Dial-in User	If set to Yes, the Prestige will allow a remote host to	(Default = Yes)
	specify its own IP address.	Yes/No
	If set to No, the remote host must use the IP address
	assigned by your Prestige from the IP pool, configured
	below. This is to prevent the remote host from using an
	invalid IP address and potentially disrupting the whole
	network.
IP Pool	This field tells your Prestige to provide the remote host	Yes/No
	with an IP address from the pool. This field is required if	(Default = No)
	Dial-In IP Address Supplied By: Dial-in User is set to
	No. You can configure this field even if Dial-in User is set
	to Yes, in which case your Prestige will accept the IP
	address if the remote peer specifies one; otherwise, an
	IP address is assigned from the pool.
IP Pool: IP Start Addr	This field is applicable only if you selected Yes in the
	Dial-In IP Address Supplied By: IP Pool field.
	The IP pool contains contiguous IP addresses and this
	field specifies the first one in the pool.

6-6 Dial-In Server Configuration