When communicating to the local syslog server from Primary EPM, ensure that the Primary EPM is configured to listen on port 514 over UDP.
For RHEL 7:
# Provides UDP syslog reception
$ModLoad imudp
$UDPServerRun 514
For RHEL 8:
# for parameters see http://www.rsyslog.com/doc/imudp.html
module(load="imudp") # needs to be done just once
input(type="imudp" port="514")