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Network Management Card User’s Guide 56
Security
Introduction FRQWLQXHG
User Names,
Passwords and
SNMP Community
Names
All user names, passwords, and
SNMP
community names are
transferred over the network as plain-text. This means that someone
capable of monitoring the network traffic can determine the user names
and passwords required to access the Management Card. Any similar
device with Telnet server, Web server, or
SNMPv1
agent will have the
same constraints due to the limitations in the protocols themselves.
Each of the interfaces and access methods is described in the following
table.
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Control Console
(Serial access)
• User name and password Always enabled.
Control Console
(Telnet access)
• User name and password
• Selectable server port
• Server Enable/Disable
The user name and password
are transmitted in plain text.
SNMP
• Community Name
•
NMS
IP
filters
• SNMP Enable/Disable
• Four access communities
with read/write/disable
The NMS IP filters allow access
from designated IP addresses.
• 159.215.12.1 allows only the
NMS with that IP address to
have access.
• 159.215.12.255 allows access
for any NMS on the 159.215.12
segment.
• 159.215.255.255 allows access
for any NMS on the 159.215
segment.
• 159.255.255.255 allows access
for any NMS on the 159
segment.
• 0.0.0.0 or 255.255.255.255
allows access for any NMS.
FTP
Server
• User name and password
• Selectable server port
• Server Enable/Disable
Allows access to an
Administrator only.
Web Interface
• User name and password
• Selectable server port
• Server Enable/Disable
In basic HTTP
authentication
mode, the user name and
password are transmitted as
base-64 encoded (no encryption)
text.