Configuring SNMP Version 2c
The three main versions of SNMP used throughout the years are Versions 1, 2c, and 3. Because Version 1 is extremely legacy, and not often encountered in networks today, this text focuses on Versions 2c and 3.
SNMP Version 2c had several enhancements over the first version. Many of these were improvements in the messaging system to make obtaining large amounts of statistics from the device more efficient. Unfortunately, not much was done in the area of security.
Both SNMP Version 1 and SNMP Version 2c rely on what are termed SNMP community strings to authenticate access to MIB objects. These community strings are really just clear-text passwords. These days, clear-text passwords are really not even considered a security ...
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