User Guide
Page 364
... which this license is protected by ZyXEL. Ownership of the Software, Documentation and all intellectual property rights therein shall remain at all implied licenses are expressly reserved by international copyright law, trade secret law, international treaty provisions, and the applicable national laws of each respective country. All...the Software by any documentation files accompanying the Software ("Documentation"), for internal business use the Software as long as security or P-661HNU-Fx User's Guide You have the right to make one backup copy of the license granted hereunder.
... which this license is protected by ZyXEL. Ownership of the Software, Documentation and all intellectual property rights therein shall remain at all implied licenses are expressly reserved by international copyright law, trade secret law, international treaty provisions, and the applicable national laws of each respective country. All...the Software by any documentation files accompanying the Software ("Documentation"), for internal business use the Software as long as security or P-661HNU-Fx User's Guide You have the right to make one backup copy of the license granted hereunder.