diff --git a/Documentation/NuttShell.html b/Documentation/NuttShell.html
index be74af7062..ee752faa73 100644
--- a/Documentation/NuttShell.html
+++ b/Documentation/NuttShell.html
@@ -8,7 +8,7 @@
   <tr align="center" bgcolor="#e4e4e4">
     <td>
       <h1><big><font color="#3c34ec"><i>NuttShell (NSH)</i></font></big></h1>
-      <p>Last Updated: January 22, 2016</p>
+      <p>Last Updated: February 8, 2016</p>
     </td>
   </tr>
 </table>
@@ -101,379 +101,385 @@
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdbase64dec">2.3 Base64 Decode (base64dec)</a>
+    <a href="#cmdarp">2.3 Access the ARP table (arp)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdbase64enc">2.4 Base64 Encode (base64enc)</a>
+    <a href="#cmdbase64dec">2.4 Base64 Decode (base64dec)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdbasename">2.5 Extract Base File/Directory Name (basename)</a>
+    <a href="#cmdbase64enc">2.5 Base64 Encode (base64enc)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdbreak">2.6 Terminate a Loop (break)</a>
+    <a href="#cmdbasename">2.6 Extract Base File/Directory Name (basename)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdcat">2.7 Concatenate Files (cat)</a>
+    <a href="#cmdbreak">2.7 Terminate a Loop (break)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdcd">2.8 Change Current Working Directory (cd)</a>
+    <a href="#cmdcat">2.8 Concatenate Files (cat)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdcmp">2.9 Compare Files (cmp)</a>
+    <a href="#cmdcd">2.9 Change Current Working Directory (cd)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdcp">2.10 Copy Files (cp)</a>
+    <a href="#cmdcmp">2.10 Compare Files (cmp)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmddate">2.11 Show or set the date and time (date)</a>
+    <a href="#cmdcp">2.11 Copy Files (cp)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmddd">2.12 Copy and Convert Files (dd)</a>
+    <a href="#cmddate">2.12 Show or set the date and time (date)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmddelroute">2.13 Delete a Routing Table Entry (delroute)</a>
+    <a href="#cmddd">2.13 Copy and Convert Files (dd)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmddf">2.14 Show volume status (df)</a>
+    <a href="#cmddelroute">2.14 Delete a Routing Table Entry (delroute)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmddirname">2.15 Extract Path to a File/Directory (dirname)</a>
+    <a href="#cmddf">2.15 Show volume status (df)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdecho">2.16 Echo Strings and Variables (echo)</a>
+    <a href="#cmddirname">2.16 Extract Path to a File/Directory (dirname)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdexec">2.17 Execute User Code (exec)</a>
+    <a href="#cmdecho">2.17 Echo Strings and Variables (echo)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdexit">2.18 Exit NSH (exit)</a>
+    <a href="#cmdexec">2.18 Execute User Code (exec)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdfree">2.19 Show Memory Manager Status (free)</a>
+    <a href="#cmdexit">2.19 Exit NSH (exit)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdget">2.20 Get File Via TFTP (get)</a>
+    <a href="#cmdfree">2.20 Show Memory Manager Status (free)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdhelp">2.21 Show Usage Command Usage (help)</a>
+    <a href="#cmdget">2.21 Get File Via TFTP (get)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdhexdump">2.22 Hexadecimal Dump of File or Device (hexdump)</a>
+    <a href="#cmdhelp">2.22 Show Usage Command Usage (help)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdifconfig">2.23 Manage Network Configuration (ifconfig)</a>
+    <a href="#cmdhexdump">2.23 Hexadecimal Dump of File or Device (hexdump)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdifdown">2.24 Take a network down (ifdown)</a>
+    <a href="#cmdifconfig">2.24 Manage Network Configuration (ifconfig)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdifup">2.25 Bring a network up (ifup)</a>
+    <a href="#cmdifdown">2.25 Take a network down (ifdown)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdinsmod">2.26 Install an OS module (insmod)</a>
+    <a href="#cmdifup">2.26 Bring a network up (ifup)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdkill">2.27 Send a signal to a task (kill)</a>
+    <a href="#cmdinsmod">2.27 Install an OS module (insmod)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdlosetup">2.28 Setup/teardown the Loop Device (losetup)</a>
+    <a href="#cmdkill">2.28 Send a signal to a task (kill)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdls">2.29 List Directory Contents (ls)</a>
+    <a href="#cmdlosetup">2.29 Setup/teardown the Loop Device (losetup)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdlsmod">2.30 Show information about installed OS modules (lsmod)</a>
+    <a href="#cmdls">2.30 List Directory Contents (ls)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdmd5">2.31 Calculate MD5 (md5)</a>
+    <a href="#cmdlsmod">2.31 Show information about installed OS modules (lsmod)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdmbhw">2.32 Access Memory (mb, mh, and mw)</a>
+    <a href="#cmdmd5">2.32 Calculate MD5 (md5)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdps">2.33 Show Current Tasks and Threads (ps)</a>
+    <a href="#cmdmbhw">2.33 Access Memory (mb, mh, and mw)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdmkdir">2.34 Create a Directory (mkdir)</a>
+    <a href="#cmdps">2.34 Show Current Tasks and Threads (ps)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdmkfatfs">2.35 Create a FAT Filesystem (mkfatfs)</a>
+    <a href="#cmdmkdir">2.35 Create a Directory (mkdir)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdmkfifo">2.36 Create a FIFO (mkfifo)</a>
+    <a href="#cmdmkfatfs">2.36 Create a FAT Filesystem (mkfatfs)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdmkrd">2.37 Create a RAMDISK (mkrd)</a>
+    <a href="#cmdmkfifo">2.37 Create a FIFO (mkfifo)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdmount">2.38 Mount a File System (mount)</a>
+    <a href="#cmdmkrd">2.38 Create a RAMDISK (mkrd)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdmv">2.39 Rename a File (mv)</a>
+    <a href="#cmdmount">2.39 Mount a File System (mount)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdnfsmount">2.40 Mount an NFS file system (nfsmount)</a>
+    <a href="#cmdmv">2.40 Rename a File (mv)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdnslookup">2.41 Lookup a network address (nslookup)</a>
+    <a href="#cmdnfsmount">2.41 Mount an NFS file system (nfsmount)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdpasswd">2.42 Change a User's Password (passwd)</a>
+    <a href="#cmdnslookup">2.42 Lookup a network address (nslookup)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdping">2.43 Check Network Peer (ping/ping6)</a>
+    <a href="#cmdpasswd">2.43 Change a User's Password (passwd)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdpoweroff">2.44 Shut the system down (poweroff)</a>
+    <a href="#cmdping">2.44 Check Network Peer (ping/ping6)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdput">2.45 Send File Via TFTP (put)</a>
+    <a href="#cmdpoweroff">2.45 Shut the system down (poweroff)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdpwd">2.46 Show Current Working Directory (pwd)</a>
+    <a href="#cmdput">2.46 Send File Via TFTP (put)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdreboot">2.47 Reset and reboot the system (reboot)</a>
+    <a href="#cmdpwd">2.47 Show Current Working Directory (pwd)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdrm">2.48 Remove a File (rm)</a>
+    <a href="#cmdreboot">2.48 Reset and reboot the system (reboot)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdrmdir">2.49 Remove a Directory (rmdir)</a>
+    <a href="#cmdrm">2.49 Remove a File (rm)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdrmmod">2.50 Remove on OS Module (rmmod)</a>
+    <a href="#cmdrmdir">2.50 Remove a Directory (rmdir)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdset">2.51 Set an Environment Variable (set)</a>
+    <a href="#cmdrmmod">2.51 Remove on OS Module (rmmod)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdsh">2.52 Execute an NSH Script (sh)</a>
+    <a href="#cmdset">2.52 Set an Environment Variable (set)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdshutdown">2.53 Shut the system down (shutdown)</a>
+    <a href="#cmdsh">2.53 Execute an NSH Script (sh)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdsleep">2.54 Wait for Seconds (sleep)</a>
+    <a href="#cmdshutdown">2.54 Shut the system down (shutdown)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdtime">2.55 Time execution of another command (time)</a>
+    <a href="#cmdsleep">2.55 Wait for Seconds (sleep)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdunmount">2.56 Unmount a File System (umount)</a>
+    <a href="#cmdtime">2.56 Time execution of another command (time)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmduname">2.57 Print system information (uname)</a>
+    <a href="#cmdunmount">2.57 Unmount a File System (umount)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdunset">2.58 Unset an Environment Variable (unset)</a>
+    <a href="#cmduname">2.58 Print system information (uname)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdurldec">2.59 URL Decode (urldecode)</a>
+    <a href="#cmdunset">2.59 Unset an Environment Variable (unset)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdurlencode">2.60 URL Encode (urlencode)</a>
+    <a href="#cmdurldec">2.60 URL Decode (urldecode)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmduseradd">2.61 Add a New User (useradd)</a>
+    <a href="#cmdurlencode">2.61 URL Encode (urlencode)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmduserdel">2.62 Delete a user (userdel)</a>
+    <a href="#cmduseradd">2.62 Add a New User (useradd)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdusleep">2.63 Wait for Microseconds (usleep)</a>
+    <a href="#cmduserdel">2.63 Delete a user (userdel)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdwget">2.64 Get File Via HTTP (wget)</a>
+    <a href="#cmdusleep">2.64 Wait for Microseconds (usleep)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdxd">2.65 Hexadecimal Dump of Memory (xd)</a>
+    <a href="#cmdwget">2.65 Get File Via HTTP (wget)</a>
+  </td>
+</tr>
+<tr>
+  <td><br></td>
+  <td>
+    <a href="#cmdxd">2.66 Hexadecimal Dump of Memory (xd)</a>
   </td>
 </tr>
 <tr>
@@ -1135,7 +1141,49 @@ nsh&gt; addroute 1.1.1.1 2.2.2.2 3.3.3.3
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdbase64dec"><h2>2.3 Base64 Decode (base64dec)</h2></a>
+    <a name="cmdarp"><h2>2.3 Access the ARP table (arp)</h2></a>
+  </td>
+  </tr>
+</table>
+
+<p><b>Command Syntax:</b></p>
+<ul><pre>
+arp [-a &lt;ipaddr&gt; |-d &lt;ipaddr&gt; |-s &lt;ipaddr&gt; &lt;hwaddr&gt;]
+</pre></ul>
+<p>
+  <b>Synopsis</b>.
+  Access the OS ARP table.
+</p>
+<ul><dl>
+  <dt>-a &lt;ipaddr&gt;
+     <dd>Will show the hardware address that the IP address &lt;ipaddr&gt; is mapped to.
+
+  <dt>-d &lt;ipaddr&gt;
+     <dd>Will delete the mapping for the IP address &lt;ipaddr&gt; from the ARP table.
+
+  <dt>-s &lt;ipaddr&gt; &lt;hwaddr&gt;
+     <dd>Will set (or replace) the mapping of the IP address &lt;ipaddr&gt; to the hardware address &lt;hwaddr&gt;.
+</dl></ul>
+<p>
+  <b>Example:</b>
+</p>
+<ul><pre>
+nsh&gt; arp -a 10.0.0.1
+nsh: arp: ioctl failed: 22
+
+nsh&gt; arp -s 10.0.0.1 00:13:3b:12:73:e6
+nsh&gt; arp -a 10.0.0.1
+HWAddr: 00:13:3b:12:73:e6
+
+nsh&gt; arp -d 10.0.0.1
+nsh&gt; arp -a 10.0.0.1
+nsh: arp: ioctl failed: 22
+</pre></ul>
+
+<table width ="100%">
+  <tr bgcolor="#e4e4e4">
+  <td>
+    <a name="cmdbase64dec"><h2>2.4 Base64 Decode (base64dec)</h2></a>
   </td>
   </tr>
 </table>
@@ -1152,7 +1200,7 @@ base64dec [-w] [-f] &lt;string or filepath&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdbase64enc"><h2>2.4 Base64 Encode (base64enc)</h2></a>
+    <a name="cmdbase64enc"><h2>2.5 Base64 Encode (base64enc)</h2></a>
   </td>
   </tr>
 </table>
@@ -1169,7 +1217,7 @@ base64enc [-w] [-f] &lt;string or filepath&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdbasename"><h2>2.5 Extract Base File/Directory Name (basename)</h2></a>
+    <a name="cmdbasename"><h2>2.6 Extract Base File/Directory Name (basename)</h2></a>
   </td>
   </tr>
 </table>
@@ -1186,7 +1234,7 @@ basename &lt;path&gt [&lt;suffix&gt;]
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdbreak"><h2>2.6 Terminate a Loop (break)</h2></a>
+    <a name="cmdbreak"><h2>2.7 Terminate a Loop (break)</h2></a>
   </td>
   </tr>
 </table>
@@ -1205,7 +1253,7 @@ break
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdcat"><h2>2.7 Concatenate Files (cat)</h2></a>
+    <a name="cmdcat"><h2>2.8 Concatenate Files (cat)</h2></a>
   </td>
   </tr>
 </table>
@@ -1223,7 +1271,7 @@ cat <code>&lt;path&gt;</code> [<code>&lt;path&gt;</code> [<code>&lt;path&gt;</co
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdcd"><h2>2.8 Change Current Working Directory (cd)</h2></a>
+    <a name="cmdcd"><h2>2.9 Change Current Working Directory (cd)</h2></a>
   </td>
   </tr>
 </table>
@@ -1265,7 +1313,7 @@ cd [&lt;dir-path&gt;|-|~|..]
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdcmp"><h2>2.9 Compare Files (cmp)</h2></a>
+    <a name="cmdcmp"><h2>2.10 Compare Files (cmp)</h2></a>
   </td>
   </tr>
 </table>
@@ -1282,7 +1330,7 @@ cmp &lt;path1&gt; &lt;path2&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdcp"><h2>2.10 Copy Files (cp)</h2></a>
+    <a name="cmdcp"><h2>2.11 Copy Files (cp)</h2></a>
   </td>
   </tr>
 </table>
@@ -1300,7 +1348,7 @@ cp &lt;source-path&gt; &lt;dest-path&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmddate"><h2>2.11 Show or set the date and time (date)</h2></a>
+    <a name="cmddate"><h2>2.12 Show or set the date and time (date)</h2></a>
   </td>
   </tr>
 </table>
@@ -1326,7 +1374,7 @@ data -s &quot;Sep 1 11:30:00 2011&quot;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmddd"><h2>2.12 Copy and Convert Files (dd)</h2></a>
+    <a name="cmddd"><h2>2.13 Copy and Convert Files (dd)</h2></a>
   </td>
   </tr>
 </table>
@@ -1384,7 +1432,7 @@ nsh&gt; dd if=/dev/ram0 of=/dev/null
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmddelroute"><h2>2.13 Delete a Routing Table Entry (delroute)</h2></a>
+    <a name="cmddelroute"><h2>2.14 Delete a Routing Table Entry (delroute)</h2></a>
   </td>
   </tr>
 </table>
@@ -1407,7 +1455,7 @@ nsh&gt; delroute 1.1.1.1 2.2.2.2
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmddf"><h2>2.14 Show Volument Status (df)</h2></a>
+    <a name="cmddf"><h2>2.15 Show Volume Status (df)</h2></a>
   </td>
   </tr>
 </table>
@@ -1439,7 +1487,7 @@ nsh&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmddirname"><h2>2.15 Extract Path to a File/Directory (dirname)</h2></a>
+    <a name="cmddirname"><h2>2.16 Extract Path to a File/Directory (dirname)</h2></a>
   </td>
   </tr>
 </table>
@@ -1456,7 +1504,7 @@ dirname &lt;path&gt
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdecho"><h2>2.16 Echo Strings and Variables (echo)</h2></a>
+    <a name="cmdecho"><h2>2.17 Echo Strings and Variables (echo)</h2></a>
   </td>
   </tr>
 </table>
@@ -1474,7 +1522,7 @@ echo [&lt;string|$name&gt; [&lt;string|$name&gt;...]]
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdexec"><h2>2.17 Execute User Code (exec)</h2></a>
+    <a name="cmdexec"><h2>2.18 Execute User Code (exec)</h2></a>
   </td>
   </tr>
 </table>
@@ -1493,7 +1541,7 @@ exec &lt;hex-address&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdexit"><h2>2.18 Exit NSH (exit)</h2></a>
+    <a name="cmdexit"><h2>2.19 Exit NSH (exit)</h2></a>
   </td>
   </tr>
 </table>
@@ -1512,7 +1560,7 @@ exit
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdfree"><h2>2.19 Show Memory Manager Status (free)</h2></a>
+    <a name="cmdfree"><h2>2.20 Show Memory Manager Status (free)</h2></a>
   </td>
   </tr>
 </table>
@@ -1554,7 +1602,7 @@ nsh&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdget"><h2>2.20 Get File Via TFTP (get)</h2></a>
+    <a name="cmdget"><h2>2.21 Get File Via TFTP (get)</h2></a>
   </td>
   </tr>
 </table>
@@ -1589,7 +1637,7 @@ get [-b|-n] [-f &lt;local-path&gt;] -h &lt;ip-address&gt; &lt;remote-path&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdhelp"><h2>2.21 Show Usage Command Usage (help)</h2></a>
+    <a name="cmdhelp"><h2>2.22 Show Usage Command Usage (help)</h2></a>
   </td>
   </tr>
 </table>
@@ -1621,7 +1669,7 @@ help [-v] [&lt;cmd&gt;]
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdhexdump"><h2>2.22 Hexadecimal Dump of File or Device (hexdump)</h2></a>
+    <a name="cmdhexdump"><h2>2.23 Hexadecimal Dump of File or Device (hexdump)</h2></a>
   </td>
   </tr>
 </table>
@@ -1645,7 +1693,7 @@ hexdump &lt;file or device&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdifconfig"><h2>2.23 Manage Network Configuration (ifconfig)</h2></a>
+    <a name="cmdifconfig"><h2>2.24 Manage Network Configuration (ifconfig)</h2></a>
   </td>
   </tr>
 </table>
@@ -1707,7 +1755,7 @@ nsh&gt; mount -t procfs /proc
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdifdown"><h2>2.24 Take a network down (ifdown)</h2></a>
+    <a name="cmdifdown"><h2>2.25 Take a network down (ifdown)</h2></a>
   </td>
   </tr>
 </table>
@@ -1730,7 +1778,7 @@ ifdown eth0
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdifup"><h2>2.25 Bring a network up (ifup)</h2></a>
+    <a name="cmdifup"><h2>2.26 Bring a network up (ifup)</h2></a>
   </td>
   </tr>
 </table>
@@ -1753,7 +1801,7 @@ ifup eth0
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdinsmod"><h2>2.26 Install an OS module (insmod)</h2></a>
+    <a name="cmdinsmod"><h2>2.27 Install an OS module (insmod)</h2></a>
   </td>
   </tr>
 </table>
@@ -1796,7 +1844,7 @@ mydriver         20404659 20404625        0 20404580      552 204047a8        0
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdkill"><h2>2.27 Send a signal to a task (kill)</h2></a>
+    <a name="cmdkill"><h2>2.28 Send a signal to a task (kill)</h2></a>
   </td>
   </tr>
 </table>
@@ -1838,7 +1886,7 @@ nsh&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdlosetup"><h2>2.28 Setup/teardown the Loop Device (losetup)</h2></a>
+    <a name="cmdlosetup"><h2>2.29 Setup/teardown the Loop Device (losetup)</h2></a>
   </td>
   </tr>
 </table>
@@ -1891,7 +1939,7 @@ losetup d &lt;dev-path&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdls"><h2>2.29 List Directory Contents (ls)</h2></a>
+    <a name="cmdls"><h2>2.30 List Directory Contents (ls)</h2></a>
   </td>
   </tr>
 </table>
@@ -1929,7 +1977,7 @@ ls [-lRs] &lt;dir-path&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdlsmod"><h2>2.30 Show information about installed OS modules (lsmod)</h2></a>
+    <a name="cmdlsmod"><h2>2.31 Show information about installed OS modules (lsmod)</h2></a>
   </td>
   </tr>
 </table>
@@ -1962,7 +2010,7 @@ mydriver         20404659 20404625        0 20404580      552 204047a8        0
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdmd5"><h2>2.31 Calculate MD5 (md5)</h2></a>
+    <a name="cmdmd5"><h2>2.32 Calculate MD5 (md5)</h2></a>
   </td>
   </tr>
 </table>
@@ -1979,7 +2027,7 @@ md5 [-f] &lt;string or filepath&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdmbhw"><h2>2.32 Access Memory (mb, mh, and mw)</h2></a>
+    <a name="cmdmbhw"><h2>2.33 Access Memory (mb, mh, and mw)</h2></a>
   </td>
   </tr>
 </table>
@@ -2033,7 +2081,7 @@ nsh&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdps"><h2>2.33 Show Current Tasks and Threads (ps)</h2></a>
+    <a name="cmdps"><h2>2.34 Show Current Tasks and Threads (ps)</h2></a>
   </td>
   </tr>
 </table>
@@ -2067,7 +2115,7 @@ nsh&gt; mount -t procfs /proc
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdmkdir"><h2>2.34 Create a Directory (mkdir)</h2></a>
+    <a name="cmdmkdir"><h2>2.35 Create a Directory (mkdir)</h2></a>
   </td>
 </tr>
 </table>
@@ -2102,7 +2150,7 @@ nsh&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdmkfatfs"><h2>2.35 Create a FAT Filesystem (mkfatfs)</h2></a>
+    <a name="cmdmkfatfs"><h2>2.36 Create a FAT Filesystem (mkfatfs)</h2></a>
   </td>
 </tr>
 </table>
@@ -2127,7 +2175,7 @@ mkfatfs [-F &lt;fatsize&gt;] &lt;block-driver&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdmkfifo"><h2>2.36 Create a FIFO (mkfifo)</h2></a>
+    <a name="cmdmkfifo"><h2>2.37 Create a FIFO (mkfifo)</h2></a>
   </td>
 </tr>
 </table>
@@ -2165,7 +2213,7 @@ nsh&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdmkrd"><h2>2.37 Create a RAMDISK (mkrd)</h2></a>
+    <a name="cmdmkrd"><h2>2.38 Create a RAMDISK (mkrd)</h2></a>
   </td>
 </tr>
 </table>
@@ -2216,7 +2264,7 @@ nsh&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdmount"><h2>2.38 Mount a File System (mount)</h2></a>
+    <a name="cmdmount"><h2>2.39 Mount a File System (mount)</h2></a>
   </td>
 </tr>
 </table>
@@ -2295,7 +2343,7 @@ nsh&gt; mount
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdmv"><h2>2.39 Rename a File (mv)</h2></a>
+    <a name="cmdmv"><h2>2.40 Rename a File (mv)</h2></a>
   </td>
   </tr>
 </table>
@@ -2313,7 +2361,7 @@ mv &lt;old-path&gt; &lt;new-path&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdnfsmount"><h2>2.40 Mount an NFS file system (nfsmount)</h2></a>
+    <a name="cmdnfsmount"><h2>2.41 Mount an NFS file system (nfsmount)</h2></a>
   </td>
   </tr>
 </table>
@@ -2332,7 +2380,7 @@ nfsmount &lt;server-address&gt; &lt;mount-point&gt; &lt;remote-path&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdnslookup"><h2>2.41 Lookup a network address (nslookup)</h2></a>
+    <a name="cmdnslookup"><h2>2.42 Lookup a network address (nslookup)</h2></a>
   </td>
   </tr>
 </table>
@@ -2349,7 +2397,7 @@ nslookup &lt;host-name&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdpasswd"><h2>2.42 Change a User's Password (passwd)</h2></a>
+    <a name="cmdpasswd"><h2>2.43 Change a User's Password (passwd)</h2></a>
   </td>
   </tr>
 </table>
@@ -2366,7 +2414,7 @@ passwd &lt;username&gt; &lt;password&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdping"><h2>2.43 Check Network Peer (ping/ping6)</h2></a>
+    <a name="cmdping"><h2>2.44 Check Network Peer (ping/ping6)</h2></a>
   </td>
   </tr>
 </table>
@@ -2403,7 +2451,7 @@ nsh&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdpoweroff"><h2>2.44 Shut the system down (poweroff)</h2></a>
+    <a name="cmdpoweroff"><h2>2.45 Shut the system down (poweroff)</h2></a>
   </td>
   </tr>
 </table>
@@ -2425,7 +2473,7 @@ poweroff
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdput"><h2>2.45 Send File Via TFTP (put)</h2></a>
+    <a name="cmdput"><h2>2.46 Send File Via TFTP (put)</h2></a>
   </td>
   </tr>
 </table>
@@ -2460,7 +2508,7 @@ put [-b|-n] [-f &lt;remote-path&gt;] -h &lt;ip-address&gt; &lt;local-path&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdpwd"><h2>2.46 Show Current Working Directory (pwd)</h2></a>
+    <a name="cmdpwd"><h2>2.47 Show Current Working Directory (pwd)</h2></a>
   </td>
   </tr>
 </table>
@@ -2490,7 +2538,7 @@ nsh&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdreboot"><h2>2.47 Reboot the system (reboot)</h2></a>
+    <a name="cmdreboot"><h2>2.48 Reboot the system (reboot)</h2></a>
   </td>
   </tr>
 </table>
@@ -2512,7 +2560,7 @@ reboot
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdrm"><h2>2.48 Remove a File (rm)</h2></a>
+    <a name="cmdrm"><h2>2.49 Remove a File (rm)</h2></a>
   </td>
 </tr>
 </table>
@@ -2546,7 +2594,7 @@ nsh&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdrmdir"><h2>2.49 Remove a Directory (rmdir)</h2></a>
+    <a name="cmdrmdir"><h2>2.50 Remove a Directory (rmdir)</h2></a>
   </td>
 </tr>
 </table>
@@ -2581,7 +2629,7 @@ nsh&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdrmmod"><h2>2.50 Remove on OS Module (rmmod)</h2></a>
+    <a name="cmdrmmod"><h2>2.51 Remove on OS Module (rmmod)</h2></a>
   </td>
 </tr>
 </table>
@@ -2609,7 +2657,7 @@ nsh&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdset"><h2>2.51 Set an Environment Variable (set)</h2></a>
+    <a name="cmdset"><h2>2.52 Set an Environment Variable (set)</h2></a>
   </td>
   </tr>
 </table>
@@ -2635,7 +2683,7 @@ nsh&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdsh"><h2>2.52 Execute an NSH Script (sh)</h2></a>
+    <a name="cmdsh"><h2>2.53 Execute an NSH Script (sh)</h2></a>
   </td>
   </tr>
 </table>
@@ -2654,7 +2702,7 @@ sh &lt;script-path&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdshutdown"><h2>2.53 Shut the system down (shutdown)</h2></a>
+    <a name="cmdshutdown"><h2>2.54 Shut the system down (shutdown)</h2></a>
   </td>
   </tr>
 </table>
@@ -2675,7 +2723,7 @@ shutdown [--reboot]
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdsleep"><h2>2.54 Wait for Seconds (sleep)</h2></a>
+    <a name="cmdsleep"><h2>2.55 Wait for Seconds (sleep)</h2></a>
   </td>
   </tr>
 </table>
@@ -2692,7 +2740,7 @@ sleep &lt;sec&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdtime"><h2>2.55 Time execution of another command (time)</h2></a>
+    <a name="cmdtime"><h2>2.56 Time execution of another command (time)</h2></a>
   </td>
 </tr>
 </table>
@@ -2751,7 +2799,7 @@ nsh&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdunmount"><h2>2.56 Unmount a File System (umount)</h2></a>
+    <a name="cmdunmount"><h2>2.57 Unmount a File System (umount)</h2></a>
   </td>
 </tr>
 </table>
@@ -2781,7 +2829,7 @@ nsh&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmduname"><h2>2.57 Print system information (uname)</h2></a>
+    <a name="cmduname"><h2>2.58 Print system information (uname)</h2></a>
   </td>
   </tr>
 </table>
@@ -2848,7 +2896,7 @@ uname [-a | -imnoprsv]
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdunset"><h2>2.58 Unset an Environment Variable (unset)</h2></a>
+    <a name="cmdunset"><h2>2.59 Unset an Environment Variable (unset)</h2></a>
   </td>
   </tr>
 </table>
@@ -2874,7 +2922,7 @@ nsh&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdurldec"><h2>2.59 URL Decode (urldecode)</h2></a>
+    <a name="cmdurldec"><h2>2.60 URL Decode (urldecode)</h2></a>
   </td>
   </tr>
 </table>
@@ -2891,7 +2939,7 @@ urldecode [-f] &lt;string or filepath&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdurlencode"><h2>2.60 URL Encode (urlencode)</h2></a>
+    <a name="cmdurlencode"><h2>2.61 URL Encode (urlencode)</h2></a>
   </td>
   </tr>
 </table>
@@ -2908,7 +2956,7 @@ urlencode [-f] &lt;string or filepath&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmduseradd"><h2>2.61 Add a New User (useradd)</h2></a>
+    <a name="cmduseradd"><h2>2.62 Add a New User (useradd)</h2></a>
   </td>
   </tr>
 </table>
@@ -2925,7 +2973,7 @@ useradd &lt;username&gt; &lt;password&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmduserdel"><h2>2.62 Delete a user (userdel)</h2></a>
+    <a name="cmduserdel"><h2>2.63 Delete a user (userdel)</h2></a>
   </td>
   </tr>
 </table>
@@ -2942,7 +2990,7 @@ userdel &lt;username&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdusleep"><h2>2.63 Wait for Microseconds (usleep)</h2></a>
+    <a name="cmdusleep"><h2>2.64 Wait for Microseconds (usleep)</h2></a>
   </td>
   </tr>
 </table>
@@ -2959,7 +3007,7 @@ usleep &lt;usec&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdwget"><h2>2.64 Get File Via HTTP (wget)</h2></a>
+    <a name="cmdwget"><h2>2.65 Get File Via HTTP (wget)</h2></a>
   </td>
   </tr>
 </table>
@@ -2986,7 +3034,7 @@ wget [-o &lt;local-path&gt;] &lt;url&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdxd"><h2>2.65 Hexadecimal Dump of Memory (xd)</h2></a>
+    <a name="cmdxd"><h2>2.66 Hexadecimal Dump of Memory (xd)</h2></a>
   </td>
   </tr>
 </table>
@@ -3059,6 +3107,11 @@ nsh&gt;
     <td><code>CONFIG_NET</code> &amp;&amp; <code>CONFIG_NET_ROUTE</code></td>
     <td><code>CONFIG_NSH_DISABLE_ADDROUTE</code></td>
   </tr>
+  <tr>
+    <td><b><code>arp</code></b></td>
+    <td><code>CONFIG_NET</code> &amp;&amp; <code>CONFIG_NET_ARP</code></td>
+    <td><code>CONFIG_NSH_DISABLE_ARP</code></td>
+  </tr>
   <tr>
     <td><b><code>base64dec</code></b></td>
     <td><code>CONFIG_NETUTILS_CODECS</code> &amp;&amp; <code>CONFIG_CODECS_BASE64</code></td>
@@ -5066,6 +5119,7 @@ xxd -i romfs_img >nsh_romfsimg.h
   <li><a href="#cmdtest"><code>[</code></a></li>
   <li><a href="#custoncmds">Adding NSH commands</a></li>
   <li><a href="#cmdaddroute"><code>addroute</code></a></li>
+  <li><a href="#cmdarp"><code>arp</code></a></li>
   <li><a href="#custapps">Autogenerated header files</a></li>
   <li><a href="#cmdoverview">Background commands</a></li>
   <li><a href="#cmdoverview">Background command priority</a></li>