SNMPv1 security consists of a pairing of an SNMP agent with some arbitrary set of SNMP managers to form an SNMP community. Each SNMP community is given a name called the community name or community string for the community. Common community names are public (read-only), private (read-write), and trap. The permissions (read-only, read-write) for a community name indicate the read-write permissions of an SNMP manager when using that community name to access an agent’s MIB. Community names can be thought of as passwords to SNMPv1 agents.
