Motorola BSR 2000 manual Defines the IP address for the cable interface

Release 1.0	CMTS Commands
host	defines the IP address for the cable interface
	as the giaddr for host DHCP requests - on the
	cable interface, defines this IP address as the
	IP address to be inserted into host DHCP
	requests (this option is only available on the
	cable interface)
mta	defines the IP address for the cable interface
	as the giaddr for all MTA DHCP requests - on
	the cable interface, defines this IP address as
	the IP address to be inserted into MTA DHCP
	requests (this option is only available on the
	cable interface)
isp-bind A.B.C.D	specifies the secondary IP subnet to which
	this secondary address is bound.

526363-001-00 Rev. B MGBI 11-151