Lantech LGS-2816C-RPS, Руководство пользователя

Страница: 22 / 248

C
OMMUNITY
S
TRINGS
(
FOR
SNMP
VERSION
1
AND
2
C 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 change the read-only or read/write community string, type either of
the following commands, and press <Enter>.
“
set community <Community> <user_name> <Source IP> <Source
Mask>
“
LGS-2816C-RPS(snmp)# set community public publicuser 0.0.0.0
0.0.0.0
LGS-2816C-RPS(snmp)#
MIL-SM24DPA(snmp)# show community
SNMP Community Table:
Idx Community UserName
Source IP Source Mask
--- -------------- ------------- ----
---------- ---------------
1 public publicuser
0.0.0.0 0.0.0.0
Number of entries: 1
LGS-2816C-RPS(snmp)#
N
OTE
:
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.