SNMP4J FAQ
 Solutions to frequently asked questions and queries about SNMP4J and commonly encountered issues with the product:
Configuration FAQ
- How to change communities?
- How to configure nonstandard AES 192/256 for a SNMPv3 user?
- How to configure SNMP4J for TLS usage?
- How to configure SNMPv3 users with same name but different passphrases?
- How-to enable/configure logging?
General FAQ
- How can I download older versions of SNMP4J (-Agent) not listed on snmp4j.org?
- What standards are covered by SNMP4J (i.e., RFCs, FIPS 140-2)?
- Why are privacy protocols 3DES, AES192, and AES256 not working but DES and AES128 do work?
- Why do I get a "Port already listening" SocketException when calling listen()?
- Why do I get a java.net.BindException when initializing a TransportMapping?
Security FAQ
- False Positives Reported by "OWASP Dependency Check"
- How-to Enable (D)TLS Certificate Revocation Checking?
Upgrading from SNMP4J 2.x to 3.x
Usage FAQ
- Can I use a TransportMapping with two Snmp instances?
- How-to implement SNMPv3 GETNEXT with SNMP4J?
- How to send a broadcast request for discovery of SNMP entities?
- How to use Diffie Hellman Key Exchange with SNMP4J?
- I can get a few objects (OIDs) without problems but when I want to get more at once the API returns "null", why?
- Why does GETBULK return less variable bindings than expected?
- Why do I get a bad overall performance when using a Snmp instance for each Thread?
- Why do I get timeouts when using a Snmp instance per request?