QNAP Security VioStor NVR (Version: 3.3.2) - Manual (Page 220)

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Environment 4: The VioStor and the IP camera are installed behind the router
IP address
VioStor 1 192.168.1.101
VioStor 2 192.168.1.102
VioStor 3 192.168.1.103
Router public IP 219.87.145.205
In the example, to allow a remote PC to connect to each VioStor by FTP, you need to:
Step 1. Set up the port mapping (virtual server) on the router
From Forward to
VioStor 1 219.87.145.205:2001 192.168.1.101:21
VioStor 2 219.87.145.205:2002 192.168.1.102:21
VioStor 3 219.87.145.205:2003 192.168.1.103:21
You can connect to VioStor 1 by ftp://219.87.145.205:2001
You can connect to VioStor 2 by ftp://219.87.145.205:2002
You can connect to VioStor 3 by ftp://219.87.145.205:2003
Step 2. Enable FTP port mapping on the VioStor
To connect to each VioStor via FTP by clicking ‘FTP’ on the playback page of each VioStor,
enable FTP port mapping in ‘Network Settings’ > ‘File Services’ on the system
administration page and set the mapped port number.
Mapped port
VioStor 1 2001
VioStor 2 2002
VioStor 3 2003
After finishing the above two steps, you can connect to the VioStor via FTP by entering the
IP address in the IE browser or clicking ‘FTP’ on the playback page. Then login the VioStor
by the correct user name and password.