This is Net-SNMP (previously known as "ucd-snmp").
Various tools relating to the Simple Network Management Protocol including:
An extensible agent
An SNMP library
tools to request or set information from SNMP agents
tools to generate and handle SNMP traps
a version of the Unix 'netstat' command using SNMP
a graphical Perl/Tk/SNMP based mib browser
===> The following configuration options are available for net-snmp-5.9.5.2,1:
AES=off: Build with Blumenthal AES support
AX_DISABLE_TRAP=off: Disable agentx subagent code in snmptrapd
AX_SOCKONLY=off: Disable UDP/TCP transports for agentx
DOCS=on: Build and/or install documentation
DUMMY=on: Enable dummy values as placeholders
MFD_REWRITES=off: Use new MFD rewrites of mib modules
MYSQL=off: MySQL database support
NEWSYSLOG=on: Automatically rotate snmpd.log via newsyslog
NOLIBPKG=off: Build without libpkg
PERL=on: Perl scripting language support
PERL_EMBEDDED=on: Build embedded perl
PYTHON=off: Python bindings or support
SCTP=off: Build with SCTP MIB support
SMUX=on: Build with SNMP multiplexing (SMUX) support
TKMIB=off: Install graphical MIB browser
TLS=off: Secure network connection support via TLS
UNPRIVILEGED=off: Allow unprivileged users to execute net-snmp
===> Use 'make config' to modify these settings