NETGEAR R7500 Quick Start Manual page 21

Personal FTP Server
With your customized free URL, you can use FTP to access your
network when you aren't home through Dynamic DNS. To set up
your FTP server, follow these high-level steps:
1. Register for a free NETGEAR Dynamic DNS (DDNS) service
account.
2. Provide the account settings to your router.
3. Connect a USB hard disk to your router and set up FTP access
through the Internet.
These steps are explained in detail in the user manual, which is
available online at
link in the router's user interface.
http://downloadcenter.netgear.com
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or through a