Model: N2B1 & N2R1
21, 20 : FTP - 20, 21 by default and configurable.
(If the port for FTP is changed to 2121, then 2121 and 2120 ports should be open.)
55536~55664: FTP passive mode
80, 8000 : admin web page
443 : https
548 : AFP
9090 : File Viewer (Ajaxplorer)
9091 : Torrent
51413 : Torrent
N1T1
21, 20 : FTP - 20, 21by default and configurable.
(If the port for FTP is changed to 2121, then 2121 and 2120 ports should be open.)
55536~55664 : FTP passive mode
80, 8000 : admin web page
9091 : Torrent
51413 : Torrent
NOTES:
1. If web server is being used, port for web server should be open.
2. If Incoming TCP port for torrent is changed, the changed port should be also open.
3. When FTP is being used by active mode, only 2 ports are needed. But, to use FTP with passive mode, some more ports (55536~55664) should be opened.
