nl_tokens: The ** ifconfig up ** command is used to bring up an interface with the specified configuration .
pl_tokens: function up ( options , <mask> ) { return this . exec ( 'ifconfig ' + options . interface + ' ' + options . ipv4_address + ' netmask ' + options . ipv4_subnet_mask + ' broadcast ' + options . ipv4_broadcast + ' up' , callback ) ; }