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User Interface
R&S
®
GP-U/GP-E/GP-S/GP-T
120
User Manual 3646.3836.02 ─ 01
based information exchange are the SNMP manager (e.g. Nagios) and the SNMP cli-
ents (devices such as your gateprotect Firewall that are meant to be monitored by the
SNMP manager).
While the SNMP manager requests, receives and monitors information, the SNMP cli-
ents respond to information requests (e.g. "What is the current CPU load/memory
usage of the device?"). Status information offered by managed devices is organized
like a tree (the so-called Management Information Base, short
MIB
), with each leaf
being a retrievable piece of information. Every single leave can be addressed and
requested individually via its own unique numeric address. A file containing a mapping
of these numeric address snippets to meaningful names, and thereby a declaration of
all information available on a managed device, can be provided to the SNMP manager
to increase human usability (e.g.
29577.1.1
represents
RSCS.SystemLoad.cpuLoad
).
The "SNMP Settings" allow you to configure the following elements:
Field
Description
"ON"/"OFF"
A slider switch indicates whether SNMP is active ("ON") or inactive ("OFF"). By
clicking the slider switch, you can toggle the state individually. SNMP is deacti-
vated by default.
"Listening IP"
Optional: Enter a local IP address on which the service will be listening. If you
retain the pre-defined default IP address
0.0.0.0
, requests will be accepted
on all IP addresses.
"Listening Port"
Optional: Specify the port number on which the service will be listening. Port
number
161
is pre-defined by default.
"Protocol Version"
From the drop-down list, select the version of the SNMP protocol to be used.
Depending on the version selected, additional options become available. Ver-
sion
v2c
is pre-selected by default.
"Community String"
Only available if the selected "Protocol Version" is
v2c
: Enter the pre-shared
key that every SNMP manager/client has to use to authenticate to the SNMP
service of the access zone.
"Show Community
String"
Optional and only available if the selected "Protocol Version" is
v2c
: Select this
checkbox to verify the pre-shared key.
"Username"
Only available if the selected "Protocol Version" is
v3
: Enter the username that
every SNMP manager/client software has to use to identify to the SNMP ser-
vice of the access zone.
Note:
The username is created and used by the SNMP service internally.
"Authentication Protocol"
Only available if the selected "Protocol Version" is
v3
: From the drop-down list,
select the hashing algorithm that is used for authentication purposes. You can
choose between the settings
No Authentication
,
MD5
and
SHA
.
"Authentication Pass-
word"
Only available if the selected "Protocol Version" is
v3
and the selected "Authen-
tication Protocol" is
MD5
or
SHA
: Enter the password to be used for authentica-
tion. The password must consist of at least eight characters.
"Show Authentication
Password"
Optional and only available if the selected "Protocol Version" is
v3
and the
selected "Authentication Protocol" is
MD5
or
SHA
: Select this checkbox to verify
the authentication password.
Menu Reference