Where to configure NLog NHibernate bridge for logging sql configuration? - wcf

Question

As a proof-of-concept I am using a console application wrapping a proxy of a WCF service. I execute a few calls through the proxy and write the results to the console. Underlying the WCF service is a Data Access Layer built on the Repository pattern using NHibernate as an ORM. I want to write the NHib-generated SQL to the console.
I have attempted to configure NLog using the NuGet package and guidance from here with no luck, but I suspect perhaps I don't properly understand where I need to perform these different configuration bits in my many-layered architecture. Here's an attempt at describing my layout:
Solution
|
-- WCF Service
|
-- DAL
| | (NHibernate is used here)
| -- hibernate.cfg.xml
| NLog.config
| App.config (r)
-- WCF Client (console app)
|
--App.config (c)
hibernate.cfg.xml contents:
<hibernate-configuration xmlns="urn:nhibernate-configuration-2.2">
<session-factory>
<property name="connection.provider">NHibernate.Connection.DriverConnectionProvider</property>
<property name="dialect">NHibernate.Dialect.MsSql2012Dialect</property>
<property name="connection.driver_class">NHibernate.Driver.SqlClientDriver</property>
<property name="show_sql">true</property>
<property name="connection.connection_string">Data Source=.\SQLEXPRESS;Initial Catalog=AdventureWorks2012;User ID=**;Password=********</property>
</session-factory>
</hibernate-configuration>
NLog.config contents:
<nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<targets>
<target name="trace" type="Trace" />
</targets>
<rules>
<logger name="NHibernate.SQL" writeTo="trace" />
</rules>
</nlog>
App.config (r) contents:
<configuration>
<appSettings>
<add key="nhibernate-logger" value="NHibernate.NLogLoggerFactory, NHibernate.NLog" />
</appSettings>
</configuration>
App.config (c) contents:
<configuration>
<system.diagnostics>
<trace autoflush="true">
<listeners>
<add name="consoleListener" type="System.Diagnostics.ConsoleTraceListener" />
</listeners>
</trace>
</system.diagnostics>
<appSettings>
<add key="nhibernate-logger" value="NHibernate.NLogLoggerFactory, NHibernate.NLog" />
</appSettings>
</configuration>
My NUnit unit tests are displaying the SQL Statements, so the show-sql instruction in hibernate.cfg.xml is working correctly. If I insert a Trace.WriteLine() in my console app that shows up in the console, so (I expect) anything written to Trace ought to show up there. But I do not see any SQL in the console.
I'm assuming that I've placed some of my .config instructions in the wrong layers of my app, but where?