ECS4100 Series CLI Reference Guide-R07

Chapter 1 | Initial Switch Configuration
Enabling SNMP Management Access
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views to version 1 or 2c community strings that suit your specific security
requirements (see snmp-server view command).
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 from 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>.
Console(config)#snmp-server community admin rw
Console(config)#snmp-server community private
Console(config)#
Note: If you do not intend to support access to SNMP version 1 and 2c clients, we
recommend that you delete both of the default community strings. If there are no
community strings, then SNMP management access from SNMP v1 and v2c clients
is disabled.
Trap Receivers
You can also specify SNMP stations that are to receive traps from the switch. To
configure a trap receiver, use the “snmp-server host” command. From the
Privileged Exec level global configuration mode prompt, type:
“snmp-server host host-address community-string [version {1 | 2c | 3 {auth |
noauth | priv}}]”