# DHCP range	::= "network" IPN "{" options "}" NEWLINE
# IPN			:= ipv4_net | ipv6_net
# options		::= option ";" | suboption | options
# option		::= token " " value
# token			::= "range" | "ttl" | "rttl" | "router" | "dns servers" | "ntp servers" | "broadcast" | "netmask"
# value			::= us-ascii
# suboption		::= token "{" soptions "}" NEWLINE
# soptions		::= soption ";" | soptions
# soption		::= allow | static
# allow			::=	"allow" " " allow-list
# allow-list	::= MAC | MAC "," allow-list
# static		::= "static" " " static-list
# static-list	::= MAC " " IP | MAC " " IP "," static-list