3com 3CR17662-91 Manuale Utente

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50
C
HAPTER
 3: S
ETTING
 U
P
 
FOR
 M
ANAGEMENT
Setting Up SNMP 
Management V1 or 
V2
Any network management application running the Simple Network 
Management Protocol (SNMP) can manage a Switch if:
The correct Management Information Bases (MIBs) are installed on the 
management workstation.
The management workstation is connected to the Switch using a port 
in VLAN 1 (the Default VLAN). By default, all ports on the Switch are in 
VLAN 1.
You can use the 3Com Network Director application that is available from 
the 3Com website to provide SNMP management for your Switch. If you 
use 3Com Network Director it automatically loads the correct MIBs and 
necessary files onto your workstation.
Prerequisites
Documentation supplied with the SNMP network management 
application software.
The default read community string is public. To change this setting in 
System View, enter display snmp community.
The default write community string is private. To change this setting in 
System View, enter display snmp community.
To manage your Switch using an SNMP network management 
application, you need to specify SNMP community strings for the users 
defined on the Switch. You can do this using the command line interface 
system management snmp community
 command. Refer to the 
command line interface section of the “SuperStack 4 Switch Command 
Reference Guide” for more information.
SNMP V3 is on as default. All commands are in snmp menu in System 
View.
Default Users and 
Passwords
If you intend to manage the Switch using the web interface or the 
command line interface, or to change the default passwords, you need to 
log in with a valid user name and password. The Switch has three default 
user names, and each user name has a different password and level of 
access. These default users are listed in Table 10.
10014914AA.book  Page 50  Friday, July 7, 2006  2:08 PM