
Industrial Managed
Ethernet Switch
User Manual
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Figure 2.99 SNMP Enabling Box
Table 2.29 Description of SNMP Setting
2.11.2 Community Setting
The managed switch supports SNMP V1, V2c, and V3
. SNMP V1 and SNMP V2c use a community string matching
for authentication
. This authentication will allow network management software to access the information or data
objects defined by Management Information Bases
(MIBs) on the managed switch. Note that this simple
authentication is considered a weak security mechanism
. It is recommended to use SNMP V3, if possible. There
are two levels of authentications or permission type in EH75XX series, which are read
-all-only or read-write-all. For
example, in our default setting as shown in Figure 2.100, an SNMP agent, which is a network management software
module residing on the managed switch, can access all objects with read
-all-only permissions using the string
public
.
Another setting example is that the string
private
has permission of read
-write-all.
This community string option allows the users to set a community string for authentication or remove existing
community string from the list by clicking on the
Remove
button at the end of each community string item. The
users can specify the string names on the
String
field and the type of permissions from the dropdown list as shown
in Figure 2.100. Table 2.30 briefly provides descriptions of SNMP
’s community string setting.
Figure 2.100 SNMP Community Strings
Label
Description
Factory Default
SNMP
Check the box to enable SNMP V1
/
V2c
/
V3
.
Disabled