The snortSnmpPlugin enables snort to send SNMP alerts to network management systems (NMS). The alerts can be traps (the alert will not be acknowledged by the receiver) or informs (the alert will be acknowledged by the receiver ). This is version 2.2.0-01.
You can download it from the following link: https://packetstormsecurity.com/files/download/34693/SnortSnmpMod-2.2.0-01.tgz
Source: https://packetstormsecurity.com/files/34693/SnortSnmpMod-2.2.0-01.tgz.html