Technical Reference; About Snmp - ZyXEL Communications GS1920v2 Series User Manual

The following table describes the labels in this screen.
Table 176 Management > Access Control > Remote Management
L ABEL
Entry
Active
Start Address
End Address
Telnet/FTP/
HTTP/ICMP/
SNMP/SSH/
HTTPS
Apply
Cancel
40.7 T e c hnic a l Re fe re nc e
This section provides technical background information on the topics discussed in this chapter.
40.7.1 Ab o ut SNMP
Simple Network Management Protocol (SNMP) is an application layer protocol used to manage and
monitor TCP/IP-based devices. SNMP is used to exchange management information between the
network management system (NMS) and a network element (NE). A manager station can manage and
monitor the Switch through the network via SNMP version 1 (SNMPv1), SNMP version 2c or SNMP version
3. The next figure illustrates an SNMP management operation. SNMP is only available if TCP/IP is
configured.
SNMP Management Model
Fig ure 260
An SNMP managed network consists of two main components: agents and a manager.
Chapter 40 Access Control
DESC RIPT IO N
This is the client set index number. A "client set" is a group of one or more "trusted computers"
from which an administrator may use a service to manage the Switch.
Select this check box to activate this secured client set. Clear the check box if you wish to
temporarily disable the set without deleting it.
Configure the IP address range of trusted computers from which you can manage this Switch.
The Switch checks if the client IP address of a computer requesting a service or protocol matches
the range set here. The Switch immediately disconnects the session if it does not match.
Select services that may be used for managing the Switch from the specified trusted computers.
Click to save your changes to the Switch's run-time memory. The Switch loses these
Apply
changes if it is turned off or loses power, so use the
your changes to the non-volatile memory when you are done configuring.
Click to begin configuring this screen afresh.
C a nc e l
GS1920v2 Series User's Guide
link on the top navigation panel to save
Sa ve
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