bootfile (DHCPモード)
default-router (DHCPモード)
dns-server (DHCPモード)
domain-name (DHCPモード)
host (DHCPモード)
lease (DHCPモード)
network (DHCPモード)
next-server (DHCPモード)
option (DHCPモード)
probe enable (DHCPモード)
probe packets (DHCPモード)
probe timeout (DHCPモード)
probe type (DHCPモード)
range (DHCPモード)
subnet-mask (DHCPモード)