diff --git a/chapter01/changelog.xml b/chapter01/changelog.xml
index 2a6a26461..a2c0391fd 100644
--- a/chapter01/changelog.xml
+++ b/chapter01/changelog.xml
@@ -40,6 +40,10 @@
     <listitem>
       <para>2008-10-21</para>
       <itemizedlist>
+        <listitem>
+          <para>[bdubbs] - Added a note to the ifcfg script description in 
+          iproute2 that it requires external programs.</para>
+        </listitem>
         <listitem>
           <para>[dj] - Added '--without-included-regex' to grep instrcutions
           in order to force the use of glibc's regex library.  This fixes the
diff --git a/chapter06/iproute2.xml b/chapter06/iproute2.xml
index 7e7705389..007639a33 100644
--- a/chapter06/iproute2.xml
+++ b/chapter06/iproute2.xml
@@ -146,7 +146,10 @@
       <varlistentry id="ifcfg">
         <term><command>ifcfg</command></term>
         <listitem>
-          <para>A shell script wrapper for the <command>ip</command> command</para>
+          <para>A shell script wrapper for the <command>ip</command> command. 
+          Note that it requires the <command>arping</command> and 
+          <command>rdisk</command> programs from the 
+          iputils package found at <ulink url="http://www.skbuff.net/iputils/"/>.</para>
           <indexterm zone="ch-system-iproute2 ifcfg">
             <primary sortas="b-ifcfg">ifcfg</primary>
           </indexterm>