SNMP4J is an enterprise class free open source and
state-of-the-art SNMP implementation for Java 2SE 1.4 or
later. SNMP4J supports command generation (managers) as
well as command responding (agents). Its clean object
oriented design is inspired by SNMP++, which is a
well-known SNMPv1/v2c/v3 API for C++ (see http://www.agentpp.com).

The SNMP4J Java SNMP API provides the following features:

* SNMPv3 with MD5 and SHA authentication and DES, 3DES,
AES 128, AES 192, and AES 256 privacy.
* Pluggable Message Processing Models with implementations
for MPv1, MPv2c, and MPv3
* All PDU types.
* Pluggable transport mappings. UDP, TCP, and TLS are supported
out-of-the-box.
* Pluggable timeout model.
* Synchronous and asynchronous requests.
* Command generator as well as command res-ponder support.
* Free open source with the Apache license model
* Java 1.4.1 or later (1.6 for version 2.0 or later)
* Logging based on Log4J
* Row-based efficient asynchronous table retrieval with GETBULK.
* Multi-threading support.