NEC iPASOLINK EX Advanced, Instruction Manual

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SECURITY MANAGEMENT 3-7
iPASOLINK EX Advanced:
S
ET
N
ETWORK AND
S
YSTEM
P
ROVISIONING
GGS-000547-01E
3.1.5 FTP
FTP (File Transfer Protocol) transfers a file among NEs, and specified by the
following RFCs.
Using iPASOLINK as FTP Server provides the following functions:
3.1.5.1 Data Upload and Download Service
Data upload and download service are available; however the data download is
restricted, which can be operated only by a user with the appropriate privilege (refer
to
2.2.2 User Access Levels ).
Files and the directories accessed via FTP protocol are predetermined as well as the
file names and types, which will be downloaded.
3.1.5.2 Session Management
Upon accepting the connection from external device, the system proceeds to the login
authentication process. An unauthorized user is denied.
The default setting of TCP Port 21 to listen and transfer a file on TCP port 20 can be
changed using WebLCT. When Passive Mode is selected, the port number is selected
by the equipment automatically.
If no command is issued by the Client for ninety seconds, the current TCP session
will be disconnected automatically.
3.1.5.3 User Authentication Function
iPASOLINK supports the internal authentication only.
Table 3-8 RFC Standards
RFC No. Title
RFC 959
Original FTP spec
RFC 1123
The small FTP related section extends / clarifies RFC-959
RFC 2228
FTP security extensions (vsftpd implements the small subset needed to
support TLS / SSL connections)
RFC 2389
Proposes FEAT and OPTS commands
RFC 2428
Essentially IPv6 support