<literal>tls</literal> or <literal>dtls</literal>. The value of
<literal>secret</literal> is the shared RADIUS key used with
this client. If the secret contains whitespace, the value must
- be quoted. This option is optional for TLS/DTLS.
+ be quoted. This option is optional for TLS/DTLS and if omitted
+ will default to "mysecret". Note that the default value of
+ <literal>secret</literal> will change in an upcoming release.
</para>
<para>
For a TLS/DTLS client you may also specify the