SMC Networks 8700S-130, Management Manual

Page: 51 / 592

B
ASIC
C
ONFIGURATION
2-13
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
(see page 3-56).
Community Strings (for SNMP version 1 and 2c clients)
Community strings are used to control management access to SNMP
version 1 and 2c stations, as well as to authorize SNMP stations to receive
trap messages from the switch. You therefore need to assign community
strings to specified users, and set the access level.
The default strings are:
• public - with read-only access. Authorized management stations are
only able to retrieve MIB objects.
• private - with read-write access. Authorized management stations are
able to both retrieve and modify MIB objects.
To prevent unauthorized access to the switch via SNMP version 1 or 2c
clients, it is recommended that you change the default community strings.
To configure a community string, complete the following steps:
1. From the Privileged Exec level global configuration mode prompt,
type “snmp-server community string mode ,” where “string” is the
community access string and “mode” is rw (read/write) or ro (read
only). Press <Enter>. (Note that the default mode is read only.)
2. To remove an existing string, simply type “no snmp-server community
string ,” where “string” is the community access string to remove. Press
<Enter>.