Components 119

Figure 36 Community Strings Pane

Typically, for security reasons, you will modify the community strings on your SNMP devices from their factory default settings. In this case, you will need to specify the modified community strings in this pane, otherwise 3Com Network Director will not be able to access them using SNMP.

3Com Network Director attempts to use different community strings in the following order:

1If a device already exists on your map, it will attempt to use the community strings already stored against it in the database

2It will then attempt to use the community strings you provide in this pane of the wizard

3Finally, it will attempt the default community strings. The default read community for all devices is public, and the default write community string depends upon the device type. If 3Com Network Director successfully establishes the read community string then it will be able to deduce the type of device and consequently know what the default write community is for that device (assuming it is a 3Com device).

If you are discovering the subnet for the first time (that is, not a re-discovery), and you have changed the community strings on your devices from the factory defaults, then you will need to add the strings to the Read and Write list boxes. If you have assigned different community