NXLog.conf files issues

Converting events to Snare format and sending them out over TCP syslog
# <Output out>
# Module om_tcp
# Host 192.168.1.1
# Port 514
# Exec to_syslog_snare();

Can someone please tell me what's the purpose of the HOST IP, by default it's set to 192.168.1.1.
What exactly should it be?

Thanks