/usr/share/snmp/snmpconf-data/snmptrapd-data/authentication is in snmpd 5.7.2~dfsg-8.1ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 | title Authentication options
description Authentication options
token ignoreAuthFailure
info Ignore authentication failure traps
info arguments: (1|yes|true|0|no|false)
question 1 Ignore authentication failure traps
validanswer 1 ^(1|yes|true|0|no|false)
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