EMM-E6 Ethernet User's Guide

COMMUNITY NAMES

EMM-E6 User’s Guide 1-21

1.8 COMMUNITY NAMES

When using Local or Remote Management tools to access the EMM-E6 it

is important that the Network Manager has the ability to maintain network

security. Community Names provide some network security by acting as

passwords into the device and the software running it. The Network

Manager (Super-user) controls access by establishing four (4) passwords.

Each of these passwords is associated with a speciﬁc level of access to the

Local Management capabilities of the EMM-E6. The Community Names

are set through the Local Management Community Name Table. Once

these are set by the Network Manager, they can be maintained in

conﬁdence or limited to users who have a need to manage the system. The

four levels of access are:

• Super-User - Allows full management privileges

• Read-Write - Allows editing of device conﬁguration parameters not

including changing Community Names

• Read-Only - Allows reading of device parameters not including

Community names

• Basic-Read - Allows reading low level device data

1.9 SNMP

SNMP (Simple Network Management Protocol) is a protocol within the

Transmission Control Protocol/Internet Protocol (TCP/IP) protocol suite.

Network applications such as Local Management and MIB Navigator use

SNMP to manage device conﬁgurations and monitor operating

conditions. SNMP protocol deﬁnes methods for “GETs,” “SETs,” and

“TRAPs,” either remotely from any point along the TCP/IP network or

locally. This allows for control of the device from any point along the

network. SNMP tools use the MIBs located on the device to be managed

to; access information (GET), change device parameters (SET), and to

notify previously selected users that an event has occurred (TRAP).

CH1Book Page 21 Wednesday, March 20, 1996 7:48 AM