Cisco SCE 1000 2xGBE User's Guide download pdf (Page 179)

Chapter 6 Control Configuration

SNMP Configuration and Management

SCE 1000 2xGBE Release 2.0.10 User Guide

OL-7117-02 6-33

SNMP Community Strings

An SNMP community string is a text string that acts like a password to permit access to the agent

on the SCE 1000. The community string is used to authenticate messages that are sent between

the management station (the SNMP manager) and the device (the SNMP agent). The community

string is included in every message transmitted between the SNMP manager and the SNMP agent.

Configuring SNMP Community Strings

In order to enable SNMP management, you must configure SNMP community strings to define

the relationship between the SNMP manager and the agent.

After receiving an SNMP request, the SNMP agent compares the community string in the request

to the community strings that are configured for the agent. The requests are valid under the

following circumstances:

• SNMP Get and Get-next, Get-bulk requests are valid if the community string in the

request matches the read-only community.

• SNMP Get, Get-next, Get-bulk and Set requests are valid if the community string in

the request matches the agent’s read-write community.

You may specify the following characteristics associated with the community string:

• An access list of IP addresses of the SNMP managers permitted to use the community string

to gain access to the agent

• Read-write or read-only accessibility for the community.

Note

If no access list is configured, all IP addresses can access the agent using the defined community string.

For more information about Access Lists, see Configuring Access Control Lists (ACLs) (on page 6-2)

Note

When defining a community if it is not specified explicitly, the default accessibility is read-only.

The following describes how to configure a community string, as well as how to remove a

community string.

To configure a community string:

Step 1 At the SCE 1000(config)# prompt, type snmp-server community

community-string [ro|rw] [acl-number], and press Enter.

The SCE 1000(config)# prompt appears.

Step 2 If needed, repeat steps 1 to configure additional community strings.

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Cisco SCE 1000 2xGBE User's Guide Page 179