@Override
        public String getName() { return "totp-enforce-hosts"; }
A property that contains a list of IP addresses and/or subnets for which
MFA via the TOTP module should explicitly be enabled. If this property is defined,
and the TOTP module is installed, users logging in from hosts contained
in this list will be prompted for MFA, and users logging in from all
other hosts will not be prompted for MFA.
extensions/guacamole-auth-totp/src/main/java/org/apache/guacamole/auth/totp/conf/ConfigurationService.java