Linksys SRW224G4P - Manual (Page 49)

Chapter  Configuring the Switch
4 24-Port 10/100 + 4-Port Ggabt Swtch wth WebVew and Power over Ethernet
The switch can be configured to accept management
commands from Simple Network Management Protocol
(SNMP) applications . You can configure the switch to
respond to SNMP requests or generate SNMP traps .
When SNMP management stations send requests to the
switch (either to return information or to set a parameter),
the switch provides the requested data or sets the specified
parameter . The switch can also be configured to send
information to SNMP managers (without being requested
by the managers) through trap messages, which inform
the manager that certain events have occurred .
The switch includes an SNMP agent that supports SNMP
version 1, 2c, and 3 clients . To provide management access
for version 1 or 2c clients, you must specify a community
string . The switch provides a default MIB View (i .e ., an
SNMPv3 construct) for the default “public” community
string that provides read access to the entire MIB tree,
and a default view for the “private” community string that
provides read/write access to the entire MIB tree . However,
you may assign new views to version 1 or 2c community
strings that suit your specific security requirements .
SNMP > Global Parameters
An SNMPv3 engine is an independent SNMP agent that
resides on the switch . This engine protects against message
replay, delay, and redirection . The engine ID is also used in
combination with user passwords to generate the security
keys for authenticating and encrypting SNMPv3 packets .
A local engine ID is automatically generated that is unique
to the switch . This is referred to as the default engine ID . If
the local engine ID is deleted or changed, all SNMP users
will be cleared . You will need to reconfigure all existing
users .
SNMP > Global Parameters
A new engine ID can be specified by entering 5 to 32
octets in hexadecimal characters .
Local Engne ID Enter an ID of 5 to 32 hexadecimal
characters and then click Save .
User Default Check this box to set as default .
Enable Authentcaton Traps Issues a notification
message to specified IP trap managers whenever
authentication of an SNMP request fails . Click the check
box to enable Authentication traps .
Enable Lnk-up and Lnk-down Traps Issues a
notification message whenever a port link is established
or broken . Click the check box to enable Link-up/down
traps .
To send inform messages to an SNMPv3 user on a remote
device, you must first specify the engine identifier for the
SNMP agent on the remote device where the user resides .
The remote engine ID is used to compute the security
digest for authenticating and encrypting packets sent to a
user on the remote host .
SNMP passwords are localized using the engine ID of the
authoritative agent . For informs, the authoritative SNMP
agent is the remote agent . You therefore need to configure
the remote agent’s SNMP engine ID before you can send
proxy requests or informs to it .
The engine ID can be specified by entering 5 to 32
hexadecimal characters .
Remote Engne ID Enter an ID of 5 to 32 hexadecimal
characters .
Remote IP Host The Internet address of the remote
device where the user resides .
Acton Click to add or remove the Remote Engine ID and
Remote host details entered .