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|
<!DOCTYPE html PUBLIC "-//w3c//dtd html 4.0 transitional//en">
<html><head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta name="Author" content="sevy">
<meta name="GENERATOR" content="Mozilla/4.75 [en] (Win98; U) [Netscape]"><title>AirPort Base Station Configurator</title></head><body style="background-image: url(file:///home/root/Desktop/web_page/images/background.jpg);" nosave="">
<br>
<center>
<h2> <a href="#Configurator">AirPort Base Station / RG-1000 Configurator</a>
</h2>
</center>
<center>
<h2> <a href="#Hangup">Modem Utility</a> </h2>
</center>
<center>
<h2> <font size="+2"><a href="#Monitor">Wireless Link Test Utility</a>
</font></h2>
</center>
<center>
<h2> <font size="+2"><a href="#Host_Monitor">Wireless Host Monitoring Utility</a></font></h2>
</center>
<h2>
<center><a href="#PortInspector">AirPort Port Inspector</a></center>
</h2>
<div align="center">
<h2><a href="#IPInspector">AirPort IP Inspector</a></h2>
</div>
<h2>
<center> </center>
</h2>
<div align="left"><br>
</div>
<div align="left">
<center></center>
<a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/index_francais.html">Version Fran</a><a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/index_francais.html">aise</a> (merci Stphane Moureau)<br>
<center> </center>
</div>
<h4> <a name="Changes"></a> Recent changes:</h4>
<ul>
<li><b><a href="#Wireless_Host_Monitor">Wireless Host Monitor for "Graphite", "Snow" and Extreme AirPort base stations</a> </b>(September 27, 2003)</li>
</ul>
<blockquote>This utility monitors the wireless hosts that are currently connected
through an Apple Airport or Lucent RG-1000 wireless access point. The utility provides an
editable list of MAC addresses and user-assigned host names for
recording known hosts; when the list of associated hosts is
retrieved from the base station, it is matched against the list of
known hosts, and the associated host names are displayed and unknown hosts are indicated.<br>
<br>
</blockquote>
<ul>
<li><b><a href="#IPInspector">AirPort IP Inspector version 1.0 (for
"snow" base station) posted</a> </b> (February 1, 2003)</li>
</ul>
<blockquote> This utility monitors the external (WAN) IP address of a
"snow" AirPort base station, and sends an email notification to a configurable
email address whenever the external IP address changes. Why would anyone
ever want this? See the full description below!<br>
<br>
</blockquote>
<ul>
<li><b><a href="file:///home/root/Desktop/web_page/airport/index.html#PortInspector">
AirPort Port Inspector version 1.0 (for "snow" base station) posted</a>
</b> (January 26, 2003)</li>
</ul>
<blockquote> This utility provides monitoring of the port
maps used by hosts associated with an AirPort base station when NAT is
used. It provides both a detailed and simplified view of open ports; the
detailed view shows information on the remote hosts being accessed by local
hosts, while the simplified view just shows the number of ports used by
each local host. A consequence of this is that the utility can be used to
monitor the local hosts which are associated with a base station - however,
note that only hosts which have recently made active connections to the "outside
world" will show up.<br>
<br>
</blockquote>
<ul>
<li><b><a href="file:///home/root/Desktop/index.html#Configurator"> Configurator
version 2.0.1 (for new version base station) posted</a> </b> (July
22, 2002)</li>
</ul>
<blockquote> Provides minor fix for bug in which only partial configuration
retrieved from base station in settings with poor link quality.<br>
<br>
</blockquote>
<ul>
<li><b><a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/index.html#Hangup">Modem Utility version 2.0 (for
both base station versions) posted</a> </b> (March 12, 2002)</li>
</ul>
<blockquote>Version 2.0 of the Modem Utility works with both the original
("graphite") and new ("snow") version base stations. This version works
with both modem and PPPoE connections. It also displays the connection
speed for the new base stations (unfortunately, the original versions don't
report the connection speed, so this isn't displayed).<br>
<br>
</blockquote>
<ul>
<li><b><a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/index.html#Configurator">Configurator version
2.0 (for new version base station) posted</a> </b> (February 4,
2002)</li>
</ul>
<blockquote>This version works with the new ("snow") version base station
(the one with two Ethernet ports). It provides the same functionality
(mostly) as version 1.5.2 provides for the original ("graphite") base
station (the one with one Ethernet port). The new version was necessary
becuase the communication protocol, and seemingly the firmware, have been
completely changed in the new units. The new configurator version is specific
to the new units; it will not work with the original base stations. Note
that this version supports both 40- and 128-bit encryption, since support
for both is built into the new base station.<br>
<br>
</blockquote>
<blockquote> </blockquote>
<ul>
<li><b><a href="#Configurator">Configurator version 1.5.2
posted</a> </b> (November 17, 2001)</li>
<br>
Includes:
<ul>
<li>Bug fix correcting problem that prevented username/password
field from being changed in modem configuration (bug introduced in version
1.5.1)</li>
<li>Sanity-check on local base station IP address in Bridging
panel, to prevent address 0.0.0.0 from being uploaded to the base station</li>
</ul>
</ul>
<br>
Please note that this software is freeware, and comes with no
warranty, express or implied. The user - not the author - is responsible
for all consequences that may stem from its use; the author accepts
no liability for any damage or inconvenience that may result. This
software is provided under the GNU Public License (included with the
downloads).
<h4>
<hr width="100%"></h4>
<h3> <a name="Configurator"></a> Configurator:</h3>
Here's a Java-based configurator for the Apple AirPort Base
Station and Lucent RG-1000 wireless access points. It should run on
any platform with a Java 1.2-compliant runtime environment installed,
permitting the configuration of a base station from any host. The download
for Unix/Windows consists of a zip file containing the software and
HTML help file. The runnable is supplied as a "jar" file; run this in
the usual way (double-clickable in Windows if using <a href="http://java.sun.com/products/jdk/1.2/jre/index.html"> Sun's JRE
1.2 or higher runtime environment</a> ; from command line in Unix).
The download for the Macintosh expands into a folder containing a double-clickable
application plus the help file; a download containing two necessary Java
libraries from Sun is also available (see notes below). <br>
<br>
<h4>"Graphite" and RG-1000 Version<br>
</h4>
Version for the original ("graphite") base station, with one Ethernet
port, and the Lucent RG-1000. See below for versions for the new ("snow")
base station.
<ul>
<ul>
<li> Unix / Windows</li>
<ul>
<li> Configurator and manual (zip file)</li>
<ul>
<li><a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/configurator_152.zip">
version 1.5.2</a> </li>
<li><a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/configurator_152_micro.zip">
version 1.5.2 micro</a> (optimized for 640 x 480 screens)</li>
</ul>
<li> <a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/swing.zip">
Swing library (zip file; needed only with pre-1.2 versions of Sun's JRE
(Java runtime environment))</a> </li>
</ul>
</ul>
</ul>
<ul>
<ul>
<li> Macintosh classic (OS 9)</li>
<ul>
<li> Configurator and manual (Stuffit archive)</li>
<ul>
<li> <a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/configurator_152.sit">
version 1.5.2</a> </li>
</ul>
</ul>
</ul>
<ul>
<ul>
<li> <a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/swing.sit">
Swing libraries</a> (Stuffit archive; needed for Macintosh classic
(see below))</li>
</ul>
</ul>
</ul>
<ul>
<ul>
<li> Macintosh OS X</li>
<ul>
<li> OS X double-clickable application packaged by Paul Naro,
available at <a href="http://www.if-dev.com/products.html">http://www.if-dev.com/products.html</a>
</li>
</ul>
</ul>
</ul>
<ul>
<ul>
<li> <a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/128bit.html">128-bit
encryption "graphite" version</a> </li>
</ul>
<br>
<ul>
<li><a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/source/source_152.zip">
Source code</a> </li>
</ul>
<br>
<br>
</ul>
<h4>"Snow" and Extreme Version<br>
</h4>
Version for the "snow" base station, with two Ethernet ports,
and Extreme (54 Mbps) base station. Note that this has built-in support
for both 40-bit and 128-bit encryption. See above for versions for the
original ("graphite") base station.
<ul>
<li> Unix / Windows</li>
<ul>
<li> Configurator and manual (zip file)</li>
<ul>
<li><a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/configurator_201.zip">version 2.0.1</a> </li>
</ul>
</ul>
</ul>
<ul>
<li>Mac Classic<br>
</li>
<ul>
<li> Configurator and manual (zip file)</li>
<ul>
<li><a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/configurator_201.sit">version 2.0.1</a></li>
</ul>
</ul>
</ul>
<ul>
<li><a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/source/source_20.zip">
Source code</a> </li>
<br>
<br>
</ul>
<h4>Additional Resources</h4>
<ul>
<li> <a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/manual.html">Manual</a>
</li>
</ul>
<ul>
<li><a href="#Changes">Change list</a> </li>
</ul>
<ul>
<li><a href="#Bugs">Bug report</a> </li>
</ul>
<ul>
<li> <a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/tips.html">
Tips on usage</a> </li>
<br>
<ul>
<li> <u>A common problem:</u> shrunken text entry fields</li>
<br>
It is possible that when you start the configurator, or retrieve
settings, all of the textboxes into which you can enter information
will appear very narrow, unable to hold even 1 character. This is a
Swing anomaly: if the outer window size isn't large enough to hold all
of the contained components, all of the textboxes shrink to 1 pixel wide!
The solution is simple: just enlarge the window size (drag the bottom-right
corner); when the size is big enough, the textfields will all suddenly
pop out to their normal size. Note that this shrinkage happens whether
the window is too narrow (not wide enough), or too short (not tall enough),
so you might have to enlarge either of these dimensions.
</ul>
</ul>
<u>Macintosh classic notes:</u> The configurator was
built with components from Sun's Swing user-interface package; unfortunately,
the Swing libraries aren't included with Apple's MRJ (Macintosh Runtime
for Java) download. The needed files are called "swingall.jar" and "mac.jar",
and should be in the MRJClasses folder in the MRJ Libraries folder in
the Extensions folder inside the System folder; if these aren't present
on your machine, you'll have to download them (above), and install as
follows:
<ul>
<li> <u>Make sure MRJ is installed:</u> you can download the
latest version from Apple if you need it, at URL <a href="http://www.apple.com/java"> http://www.apple.com/java</a>
(use the "Download MRJ 2.2 Installer" link). If there isn't an "MRJ Libraries"
folder in your Extensions folder, you need to download this.</li>
<li> <u>Download the Swing files above:</u> the library files
needed are contained in an archive file (which your browser should automatically
decompress).</li>
<li> <u>Put library files into correct location:</u> Drag
the files "swingall.jar" and "mac.jar" from the "Swing libraries" folder
to the MRJClasses folder in the MRJ Libraries folder in the Extensions
folder inside the System folder - i.e., put these two into System folder/Extensions/MRJ
Libraries/MRJClasses.</li>
<li> Once this is done, you should be able to run the Mac
version of the configurator by double-clicking it. (As a side benefit,
you'll now be able to run any other applet or application that uses the
Swing user interface libraries!)</li>
</ul>
<hr width="100%"> <br>
<a name="Firmware"></a> <b>Where's Apple hidden the firmware
in their 1.3 software update?</b>
<p>Apple's firmware has previously been supplied as a standalone file as
part of a software download bundled into a Mac-specific archive file (with
suffix ".smi", so it's often called a .smi file) However, with the 1.3
software release, the firmware is no longer included as a separate file
- it's embedded within the base station admin utility (it's the Bin1
resource, if you're a ResEdit fan). That leaves non-Mac-users out in
the cold! However, it's possible to get the firmware image out using ResEdit,
and copies are floating around. Check out: <br>
<a href="http://www.aciri.org/fenner/airport/">http://www.aciri.org/fenner/airport/</a>
(Thanks, Bill!) <br>
</p>
<hr width="100%">
<h3> <a name="Hangup"></a> Modem Monitoring and Hangup Utility:</h3>
This is a small Java-based utility that monitors the connection
state of the modem of an Apple AirPort Base Station, sends signals
to connect or disconnect the modem on demand, and displays the (approximate)
length of time the modem has been connected. Version 2.0 also displays
the modem connection speed when used with the new ("snow") version base
stations. (Thanks to Raph Hix for suggesting this app, S. Sexton for
posting info on the relevant signals to send, and Olav von Rein for suggesting
the leaner format.)<br>
<br>
<ul>
<li> Version 2.0:
Works with all versions ("graphite", "snow" and Extreme) of the
AirPort Base Station.</li>
<ul>
<li><a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/airportmodemutility_20.zip">
Unix / Windows / Mac OSX</a> (zip file)</li>
<li><a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/airportmodemutility_20.sit">
Macintosh Classic</a> (Stuffit archive)</li>
</ul>
</ul>
<ul>
<li>Version 2.0 Non-Swing: Identical to above,
but doesn't require the Java Swing user interface libraries, for systems
such as handhelds with limited memory.</li>
<ul>
<li><a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/airportmodemutility_20_noswing.zip">
Unix / Windows / Mac OSX</a> (zip file)</li>
<li><a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/modemutility_20_noswing.sit">
Macintosh Classic</a> (Stuffit archive)</li>
</ul>
</ul>
<ul>
</ul>
<ul>
<li>Version 1.4: Works only with the "graphite" base station</li>
<ul>
<li><a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/airportmodemutility_14.zip">
Unix / Windows / Mac OSX</a> - version 1.4 (zip file)</li>
<li><a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/airportmodemutility_14.sit">
Macintosh Classic</a> - version 1.4 (Stuffit archive)</li>
</ul>
</ul>
<ul>
<li>Source: Contains source
files and scripts for creating jar files</li>
<ul>
<li><a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/modemutility_source.zip">
Source</a> (zip file)</li>
</ul>
</ul>
<ul>
</ul>
<br>
<u>Notes:</u>
<br>
<ul>
<li>Paul Colton has ported the <a href="http://www.colton.net/airport/">Modem Monitoring utility to .Net for Windows hosts</a></li>
</ul>
<ul>
<li>Macintosh Classic: Note that this utility requires the Sun Swing libraries (see
discussion above), which can be obtained through the link above.
</li>
</ul>
<p> </p>
<hr width="100%">
<h3> <a name="Monitor"></a> Wireless Link Test Utility:</h3>
This is a small Java-based utility that permits the measurement
of signal strength and noise on wireless links between an Airport
Base Station and the wireless hosts associated to it, permitting the
selection of the specific wireless host whose link is to be tested
and displaying bar graphs of signal strength and noise. This utility
was built using the <a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/MIB.html">
information on the undocumented 1.3.6.1.4.1.762.2.5.* MIB variables
(posted here).</a>
<p>Note that version 1.1 provides an important bug fix; in version 1.0, the
link tested could be other than the one corresponding to the listed wireless
host. This has been corrected in version 1.1.</p>
<p><u>Note</u>: works only with the original ("graphite") base station and Lucent RG-1000.
:-(<br>
</p>
<ul>
<li> <a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/link_monitor_11.zip">
Unix / Windows / Mac OSX</a> - version 1.1 (zip file)</li>
<li> <a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/link_monitor_11.sit">
Macintosh Standard</a> - version 1.1 (Stuffit archive)</li>
<li> <a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/source/link_monitor_source_11.zip">
Source</a> (zip file)</li>
</ul>
<u>Use:</u>
<ol>
<li> Start the application:</li>
<ul>
<li> In Windows, just double-click the LinkMonitor.jar file
icon</li>
<li> In Linux/Unix/Mac OSX, at the command line, enter:
java -jar LinkMonitor.jar</li>
<li> In Mac Classic, double-click the LinkMonitor application
icon</li>
</ul>
<li> Click the "Set community" button, and enter the password
used to configure the access point; click the "Set address" button and
enter the access point's IP address if it's different from 10.0.1.1.</li>
<li> Click the "Select new host" button; a list of names
of all wireless hosts currently attached to the access point will appear;
select the host whose wireless link quality you'd like to test.</li>
<li> Click the "Test wireless link" button; the access point
will send a stream of packets to the wireless host, and use these to
measure the quailty of the wireless link; the link's signal level, noise
level, and signal-to-noise ratio (SNR) will be displayed as bar graphs;
the statistics are updated every 10 seconds.</li>
<li> Click the "Stop testing" button to stop the test.</li>
</ol>
<u>Macintosh classic notes:</u> Note that this utility
requires the Sun Swing libraries (see discussion above), which can be
obtained through the link above. <br>
<h4>
<hr width="100%"></h4>
<h3><a name="Wireless_Host_Monitor"></a> <a name="Host_Monitor"></a> Wireless Host Monitor</h3>
This utility monitors the wireless hosts that are currently connected
through an Apple Airport or Lucent RG-1000 wireless access point. The
MAC and IP addresses of attached hosts are retrieved and listed, with
the list being updated every 5 seconds. The utility provides an
editable list of MAC addresses and user-assigned host names for
recording hosts which are known. When the list of associated hosts is
retrieved from the base station, it is matched against the list of
known hosts, and the associated host names are displayed. If a host is
not found in the list, the phrase "*****Unknown host*****" is listed in
the name field to indicate the presence of an unrecognized host. (An
"Add" button is provided for each such unknown host to simplify adding
it to the list of known hosts.)<br>
<br>
Thanks to
Michael Codanti for suggesting the original version of this app, and to
Bruce Thomson for helping to test the functionality with the AirPort
Extreme!<br>
<br>
<p><u>Notes</u>: <br>
</p>
<ul>
<li>Version 2+ now works with "graphite", "snow" and Extreme AirPort base stations, as well as Lucent RG-1000 access points</li>
<li>Version 2.0.2 fixes the "shrunken textfield problem" (where text boxes shrink to 1 pixel wide when the window size is too small)<br>
</li>
<li>Version 2.1 adds support for logging and remote notification through email, and includes a usermanual.</li>
</ul>
<p><br>
<span style="text-decoration: underline;">Downloads</span>:<br>
</p>
<ul>
<li>Version 2.1 <br>
</li>
<ul>
<li><a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/host_monitor_21.zip">Unix / Windows / Mac OSX</a> (zip file)</li>
<li><a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/source/host_monitor_source_21.zip">Source</a> (zip file)</li>
</ul>
</ul>
<ul>
<li>Version 2.0.2</li>
<ul>
<li><a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/host_monitor_202.zip">Unix / Windows / Mac OSX</a> (zip file)</li>
</ul>
<ul>
<li><a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/source/host_monitor_source_202.zip">Source</a> (zip file)</li>
</ul>
</ul>
<br>
<ul>
<li>Manual</li>
<ul>
<li><a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/host_monitor_manual/Host_Monitor_Manual.html">Online</a></li>
<li><a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/host_monitor_manual.zip">Zipped</a><br>
</li>
</ul>
</ul>
<u><br>
Use:</u>
<ol>
<li>Start the application:</li>
<ul><li> In Windows and Mac OSX, just double-click the HostMonitor.jar
icon</li><li> In Linux/Unix (and Windows and Mac OSX, if desired), at the command line, enter:
java -jar HostMonitor.jar</li></ul><li>In
the dialog box which appears at startup, enter the IP address of the
base station (usually 10.0.1.1) and the password used to configure the
base station.<br>
</li><li>The utility will immediately start monitoring the base station,
showing a list of hosts associated with the base station;
the list is updated every 5 seconds. <br>
</li><li>To edit the list of known hosts, click on the "Edit known
hosts" button; this will bring up a table in which the names and MAC
addresses of known hosts can be added. Note that MAC addresses must be
entered as pairs of hex digits separated by spaces, for
example, 00 02 2d 3f a2 73 <br>
</li>
<li>More conveniently, when monitoring starts, any hosts which show
up as "Unknown" will also have a button labelled "Add"; clicking this
will bring up the known hosts table with the MAC address already
entered.</li>
<li>When the application exits, you'll be prompted to save the base station settings and known host list if these have been changed.<br>
</li>
</ol>
<br>
<span style="text-decoration: underline;">Notes:</span><br>
<ul>
<li><span style="text-decoration: underline;">Extensibility</span> <br>The
software has been designed to allow easy extensibility for monitoring
other types of access points.There's a single class that needs to be
implemented for each base station type that queries the base station
and returns the retrieved information to the main program for display.
Since there's no standard SNMP MIB that provides information on the
wireless hosts associated with a base station, each manufacturer
generally provides a proprietary set of OIDs to supply this
information, though some, including the "Snow" AirPort base station,
provide no direct mechanism for reporting the associated hosts (see
below). In fact, each of the three AirPort models has sufficiently
different firmware that the mechanisms used to monitor the associated wireless hosts are entirely different.
AirPorts are similar on the outside only. The "Graphite Airport used an
embedded 486 microcontroller from AMD and firmware developed by
Karlnet, Inc.; the "Snow" AirPort used an embedded PowerPC
microprocessor from Motorola and VxWorks-based firmware; and the Extreme models use
an embedded MIPS-based microprocessor from AMD - I'm not sure what the
firmware is based on. So we have three entirely different processor
families and possibly three entirely different operating systems! See <a href="http://www.vonwentzel.net/ABS/Evolution.html">Constantin von Wentzel's website</a> for a side-by-side comparison of the three models. The
AirPorts are essentially identical strangers.)<br>
<br>
In any case, I'd be interested in extending the monitoring capability to
additonal access point types, beyond Apple and Lucent models. To do this,
I need information about how the access point manufacturer provides the
needed information (if at all). If you have a favorite access point type,
and would like to see the Host Monitor extended to cover this, send me
an email and I can tell you how to retrieve the information I need
(basically, either the device MIB, if provided by the manufacturer, or
an SNMP treewalk of the device while some wireless hosts are attached
to it; I can send detailed instructions on how to perform the latter).</li>
</ul>
<ul>
<li><span style="text-decoration: underline;">"Graphite" AirPort:</span> <br>
<ul>
<li>
The list compiled
by the access point seems to be somewhat variable, with hosts sometimes
disappearing for one cycle and showing up again in the next.</li>
<li>The WAN address of the base station is not displayed
correctly for some versions of the base station firmware, due to an
incorrect reporting of the interface indices associated with the WAN
(Ethernet) and LAN (wireless) interfaces (they're both reported as
interface 1 in the IP address table).</li><li>The length of time that each host has been associated is not provided by the base station, and thus not displayed.<br>
</li>
</ul>
<br>
</li>
<li><span style="text-decoration: underline;">"Snow" AirPort:</span> <br>
</li>
<ul>
<li>The "snow" AirPort models unfortunately provide no direct mechanism to
determine the hosts which are currently associated with the base
station. The monitoring consequently uses the list of port maps in the
base station as the list of associated hosts. As a result, the utility
will show associated hosts only when the base station is used in NAT
mode, and hosts will only show up when they have recently made active
connections to the "outside world", since only these will have
opened ports through the base station.</li>
<li>The length of time that each host has been associated is not provided by the base station, and thus not displayed.<ul>
</ul>
</li>
</ul>
</ul>
<ul>
<li><span style="text-decoration: underline;">AirPort Extreme:</span> <br>
<ul><li>The
Extreme AirPort needs firmware 5.1.1 or greater for monitoring to work
(earlier versions don't support the relevant SNMP OIDs).<br>
</li></ul></li>
</ul>
<br>
<hr width="100%"><a name="PortInspector"></a>
<h3>AirPort Port Inspector</h3>
This utility provides monitoring of the port maps used by hosts associated
with an AirPort base station when NAT is used. It provides both a detailed
and simplified view of open ports; the detailed view shows information
on the remote hosts being accessed by local hosts, while the simplified
view just shows the number of ports used by each local host. A consequence
of this is that the utility can be used to monitor the local hosts which
are associated with a base station - however, note that only hosts which
have recently made active connections to the "outside world" will show up.<br>
<p><u>Notes:</u> <br>
</p>
<ul>
<li>works with the new ("snow") base station; see the Host Monitor
Utility above for related functionality for the original (graphite) base
station.</li>
<li>only hosts which have recently made active connections to the
"outside world" will show up, since only these will have open ports through
the base station.<br>
</li>
</ul>
<p><br>
<u>Downloads:</u><br>
</p>
<blockquote> <li> <a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/PortInspector_10.zip">Unix / Windows / Mac OSX</a>
- version 1.0 (zip file)</li>
<li> <a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/PortInspector_10_Source.zip">Source</a>
(zip file)</li>
</blockquote>
<u><br>
Use:</u>
<ol>
<li> Start the application:</li>
<ul>
<li> In Windows, just double-click the PortInspector.jar file
icon</li>
<li> In Linux/Unix/Mac OSX, at the command line, enter:
java -jar PortInspector.jar</li>
</ul>
<li>Enter the password used to configure the access point
in the dialog box which appears at startup</li>
<li>The utility will immediately start monitoring the base station,
showing a list of ports representing connections through the base station;
the list is updated every 5 seconds. Note that only hosts which have
recently made active connections to the "outside world" will show up, since
only these will have opened ports through the base station.</li>
</ol>
<hr width="100%"><a name="IPInspector"></a>
<h3>AirPort IP Inspector</h3>
This utility monitors the external (WAN) IP address of a "snow" AirPort
base station, and sends an email notification to a configurable email address
whenever the external IP address changes. Why would anyone ever want to
do this? Well, this is intended for folks who want to access hosts behind
a base station through a preconfigured port map. For example, suppose you
have a web server on your home computer, and it connects to the "outside
world" through an AirPort base station. If the web server's (local) IP address
is 10.0.1.2, you can access the web server from outside of your home network
by configuring the AirPort with a port map that maps connections on port
80 of its external interface to port 80 on the internal host 10.0.1.1. Thus
pointing your web browser to the AirPort's external IP address will access
the web server - the connection is "passed through" due to the port map.
Of course, this requires that you know the external IP address of the base
station, and if your service provider uses DHCP, this can change. That's
where this utility comes in - run on the web server, it monitors the base
station's external IP address, and emails you when it changes so you'll know
where to find your base station if its address changes.<br>
<br>
This is a first whack at a more general notification utility; being emailed
every time your base station's IP address changes is probably not the most
convenient notification method, but it should at least be effective - you'll
know where your base station is. In addition, the messages could relatively
easily be processed by a process on the receiving end to take some action
if desired (the message format is very simple). On the other hand, it's
a little like the sorcerer's apprentice, in that it'll happily fill up your
mailbox with notifications if your base station's address changes frequently
(the utility queries the base station every 5 seconds). The code has been
structured so that alternative notification actions can easily be provided
- for example, a URL for a cgi-bin program could be accessed and provided
with the new address, and this could display the new web address in a web
page - or, better yet, redirect you to the new base station address. The
code simply dispatches to any registered object that implements a simple
AirportInfoChangeListener interface (a simple example of how to use it is
contained in the AirportInfoChangeEmailer class). If there's interest, and
I get time, I'll code up a few additional ones (or if anyone would like to
contribute one, I'd be happy to incorporate it...)<br>
<br>
<p><u>Note:</u> <br>
</p>
<ul>
<li>Works only with the new ("snow") base station.</li>
</ul>
<p><br>
<u>Downloads:</u><br>
</p>
<blockquote> <li> <a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/IPInspector_10.zip">Unix / Windows / Mac OSX</a>
- version 1.0 (zip file)</li>
<li> <a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/IPInspector_10_source.zip">Source</a>
(zip file)</li>
</blockquote>
<u><br>
Use:</u>
<ol>
<li> Start the application:</li>
<ul>
<li> In Windows, just double-click the IPInspector.jar file
icon</li>
<li> In Linux/Unix/Mac OSX, at the command line, enter:
java -jar IPInspector.jar</li>
</ul>
<li>In the dialog box which appears at startup, enter the
base station's local address (usually 10.0.1.1) and password, the email address
to which change notifications should be sent, and the name of your Internet
service provider's SMTP mail host - the latter is generally something like
"mail.earthlink.com" or the like; you can probably find it in the settings
for your email package (Eudora or whatever), or get it from your ISP</li>
<li>The utility will immediately start monitoring the base station,
checking its external IP address every 5 seconds. You'll get an initial
email message when the utility starts, and then another one whenever the
IP address changes. Again, be aware that you'll get lots of messages if
it changes frequently (up to one every 5 seconds, but this would be really
unusual).</li>
</ol>
<br>
<p> </p>
<hr width="100%">
<h4> <a name="Mailing_List"></a> Mailing List</h4>
A mailing list has been created to provide notification of
updates in the Airport Base Station Configurator, Hangup Utility, and
other related software releases. Note that this is a notification-only
list; it won't accept postings. <br>
To subscribe to the airport-config mailing list:
<ul>
<li> create an email message addressed to:
majordomo@lists.cs.drexel.edu</li>
<li> leave the subject line blank (it's ignored)</li>
<li> in the body of the message, put:
subscribe airport-config</li>
</ul>
You'll receive a reply indicating that you've been added to
the list, followed at intervals by notifications of any updates or
releases of new software versions.
<p>(To unsubscribe from the list: </p>
<ul>
<li> create an email message addresses to:
majordomo@lists.cs.drexel.edu</li>
<li> leave the subject line blank (it's ignored)</li>
<li> in the body of the message, put:
unsubscribe airport-config</li>
</ul>
You will then no longer receive messages from the list.)
<p> </p>
<hr width="100%">
<h4> <a name="Tips"></a> <a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/tips.html">
Tips can now be found here</a> </h4>
<p><br>
</p>
<hr width="100%">
<h4> <a name="Bugs"></a> Bug Report and Status List:</h4>
<ul>
<li> Port mapping</li>
<ul>
<li> Port mapping would not work with base stations using
manual Ethernet configuration</li>
<li> Status: Fixed May 23 2001; public base station IP address
was not being set for port maps during configuration, rendering port
mapping inoperable; problem not present when DHCP or modem configuration
used, since public IP address was supplied by base station at run time.</li>
</ul>
<li> Manual</li>
<ul>
<li> Manual instructions for reset procedure not compatible
with Airport 1.1 and higher</li>
<li> Status: Rewritten July 8, 2000, with inclusion of section
on firmware upload to accompany configurator version 1.2</li>
</ul>
<li> Modem country code combo box</li>
<ul>
<li> Problem: Combo box didn't display correct country when
retrieving settings from base station; always read "North America"
(even when base station successfully updated with different country code).</li>
<li> Status: Fixed May 21, 2000</li>
</ul>
<li> Modem init string functionality</li>
<ul>
<li> Problem: Alterations in modem init string read incorrectly;
could cause dialing problems if init string length != 7.</li>
<li> Status: Fixed May 18, 2000</li>
</ul>
<li> Modem configuration</li>
<ul>
<li> Problem: Setting of (disabled) Ethernet configuration
panel could affect modem configuration settings; only occured if DHCP
setting selected in Ethernet panel.</li>
<li> Status: Fixed May 16, 2000</li>
</ul>
</ul>
<hr width="100%">
<h4> <a name="Changes"></a> Change Log:</h4>
<p>January 26, 2003 </p>
<blockquote>AirPort Port Inspector version 1.0 posted:<br>
</blockquote>
<ul>
<ul>
<li>Utility to display open port maps through the
new ("snow") base stations<br>
<br>
</li>
</ul>
</ul>
<p>March 12, 2002 </p>
<blockquote>Modem Utility version 2.0 posted:<br>
</blockquote>
<ul>
<ul>
<li>Modem Utility for both the new ("snow") and original
("graphite") version base stations</li>
<li>Displays modem connection speed for the new version
base station<br>
</li>
</ul>
</ul>
<p><br>
February 4, 2002 </p>
<blockquote>Configurator version 2.0 posted:<br>
</blockquote>
<ul>
<ul>
<li>Configurator for the new ("snow") version base
station; provides (approximately) the same functionality as version 1.5.2
provides for the original ("graphite") base station.</li>
</ul>
</ul>
<p><br>
November 17, 2001 </p>
<blockquote>Configurator version 1.5.2 posted:<br>
</blockquote>
<ul>
<ul>
<li>Bug fix correcting problem that prevented username/password
field from being changed in modem configuration (bug introduced in version
1.5.1)</li>
<li>Sanity-check on local base station IP address in
Bridging panel, to prevent address 0.0.0.0 from being uploaded to the
base station</li>
</ul>
</ul>
<p>October 1, 2001 </p>
<blockquote>Configurator version 1.5.1 posted:</blockquote>
<ul>
<ul>
<li> Important bug fix affecting size of username/password
field and DHCP client ID; now provides for longer usernames, needed
in particular for German DSL services</li>
<li> Provision for configuring base station to use RTS/CTS
medium reservation</li>
</ul>
</ul>
<p><br>
May 23, 2001 </p>
<blockquote>Configurator version 1.5 posted:</blockquote>
<ul>
<ul>
<li> Important bug fix affecting port mapping with Ethernet
configuration (thanks to Manoj for pointing this out, and providing
the information needed to resolve the issue!)</li>
<li> Separation of DHCP and NAT functionality</li>
<br>
NAT service is now independent of DHCP service, with NAT vs
transparent bridging being configured in the Bridging panel and DHCP
service placed into its own panel <li> Private address range for NAT
can now be specified</li>
<br>
The local private LAN address range can be specified to be
any range desired, not just the default 10.0.1.* range, by specifying
the base station private LAN address and subnet mask
</ul>
</ul>
<p><br>
May 8, 2001 </p>
<blockquote>Wireless host monitoring utility version 1.0 posted
<p>Link test utility version 1.1 posted:</p>
</blockquote>
<ul>
<ul>
<li> significant bug fix in which incorrect link tested</li>
<li> numerical values added to bar displays</li>
</ul>
</ul>
April 22, 2001
<blockquote>Configurator version 1.4 posted:</blockquote>
<ul>
<ul>
<li> PPPoE for WAN connection</li>
<li> DHCP client ID for WAN connection (thanks to Manoj Kasichainula
for providing this functionality)</li>
</ul>
<p><br>
Note that the base station will support the above features
only if Airport firmware version 1.3 is installed. <br>
</p>
<ul>
<li> DHCP lease time configurability for LAN connection</li>
<li> Restructured Network and Bridging panels to better display
information</li>
<li> Fixed bug in display of uptime in Discovery window</li>
</ul>
</ul>
<p><br>
January 18, 2001 </p>
<ul>
<li> Microsize version of configurator posted; created for
folks with 640 x 480 screens; has all the same stuff as the regular-size
configurator, just "squeezed".</li>
<br>
</ul>
January 15, 2001
<blockquote>Configurator version 1.3 posted:</blockquote>
<ul>
<ul>
<li> Encryption:</li>
<ul>
<li> Support for 4 encryption keys added</li>
<li> Switch added to permit unencrypted and encrypted data
simultaneously</li>
</ul>
<li> Modem logon script support added</li>
<li> SNMP trap host and syslog address specification fields
added</li>
<li> Facility added to disable bridging of broadcast packets
when using NAT</li>
</ul>
</ul>
<p><br>
October 16, 2000 </p>
<blockquote>Version 1.3 of Modem Utility posted:</blockquote>
<ul>
<ul>
<li> New platform-dependent look-and-feel (thanks to Chris
Gervais for supplying this enhancement).</li>
<li> Ability to set base station IP address added - shouldn't
be an issue for most folks, though.</li>
</ul>
</ul>
<p><br>
October 4, 2000 </p>
<blockquote>Configurator version 1.2.2 posted:</blockquote>
<blockquote>
<blockquote> <li> Addition to modem phone-number string functionality:
now recognizes comma ( , ) , asterisk ( * ) , pound ( # ) , and period
( . )</li>
<li> Fixed minor bug involving dimming of sub-panels in Network
panel when cursor passed over elements.</li>
<li> MAC address and base station uptime added to display
of discovery information (thanks to Chris Hertel for supplying this
enhancement).</li>
<li> 128-bit encryption version made available</li>
</blockquote>
</blockquote>
July 26, 2000
<blockquote>Configurator version 1.2.1 posted:</blockquote>
<ul>
<ul>
<li> Provision for creating a closed network added to configurator</li>
<li> Fix for bug (introduced on July 13) affecting encryption
key; last byte of encryption key was inadvertently overwritten by (newly
lengthened) modem init string field... Doh!</li>
</ul>
</ul>
<p><br>
July 19, 2000 </p>
<ul>
<ul>
<li> New smaller-footprint format for version 1.2 of the Modem
Utility. Also now displays connection time (or "Unconnected") on the
toolbar when minimized (and has a pretty icon of its own to remind you
of what the displayed number means).</li>
</ul>
</ul>
<p><br>
July 15, 2000 </p>
<ul>
<ul>
<li> <b>Much</b> improved notification of errors in supplied
configuration information - now highlights offending entry, and displays
tabbed panel which contains it</li>
<li> Major change in representation of locations of information
in 17kB memory block; now use standard hex address rather than cumbersome
OID-row-column approach. New source posted.</li>
</ul>
</ul>
<p><br>
July 13, 2000 </p>
<blockquote>
<blockquote> <li> Modem-string handling enhancement added to configurator
(to handle "deficient" modem init strings). Some default configuration
files seem to have come with no modem initialization string; this enhancement
assures that at least the "bare minimum" string, needed to support the
country code functionality, will always be included.</li>
</blockquote>
</blockquote>
July 8, 2000
<ul>
<ul>
<li> Incorporated firmware upload capability into configurator</li>
<li> Rewrote section of manual on base station reset to make
compatible with Airport 1.1 and higher</li>
<li> Improved duplicate-packet rejection in SNMP code, to
avoid problems from networks with loops</li>
<li> Rewrote checksum routines, to reflect dual-checksum
organization (single configuration checksum, plus appended transmission
checksum)</li>
<li> Improved (somewhat) error reporting</li>
</ul>
</ul>
<p><br>
June 21, 2000 </p>
<ul>
<ul>
<li> Fixed bug for quitting via window close box; previously,
the java runtime kept going in the background if quit through close
box rather than from File menu. Thanks to Jer from Blacklite / Cal Poly
for pointing this out!</li>
<li> Fixed bug in access control functionality (discovered
a "switch" in the memory image that I'd missed before; black-box reverse
engineering is <u>hard!!</u>
:-(</li>
<li> Clarified several cryptic error reports which appeared
in the messages window (Java exception strings don't help the end user
much...)</li>
</ul>
</ul>
<p><br>
May 21, 2000 </p>
<ul>
<ul>
<li> Fixed bug where combo box didn't display correct country
when retrieving settings from base station; always read "North America"
(even when base station successfully updated with different country
code)</li>
<li> Added "same as" phrases to country code combo box</li>
<li> Slightly reorganized Network settings panel</li>
</ul>
</ul>
<p><br>
May 18, 2000 </p>
<ul>
<ul>
<li> Fixed bug affecting modem initialization string;
length of initialization string read from incorrect field, causing
problems with initialization string and phone numbers if init string
length was different from 7</li>
</ul>
</ul>
<p><br>
May 16, 2000 </p>
<ul>
<li> Fixed bug affecting all previous releases, where modem
configuration status affected by setting of radio button in (disabled)
Ethernet configuration panel.</li>
</ul>
<p><br>
May 13, 2000 </p>
<blockquote> <li> Posted as version 1.1</li>
<li> Added port mapping configuration panel</li>
<li> Improved table entry functionality (for currently edited
cell, changes automatically written when configuration saved or updated)</li>
</blockquote>
May 12, 2000
<blockquote> <li> Reduced font sizes and size of configurator frame so will
fit on smaller screens</li>
<li> Separated Swing libraries download from configurator
download for Macintosh</li>
</blockquote>
<p><br>
May 10, 2000 </p>
<blockquote> <li> Posted <a href="http://edge.cs.drexel.edu/GICL/people/sevy/airport/source/index.html">
source code and documentation</a> (May 10, 2000)</li>
</blockquote>
<p><br>
May 8, 2000 </p>
<ul>
<li> Repackaged Mac Hangup with JBindery to address "Class
not found" error</li>
<li> Added remaining telephone country codes for dial-up
connections.</li>
</ul>
<p><br>
May 5, 2000 </p>
<ul>
<li> Created and posted modem hangup utility.</li>
<li> Added GNU Public License to downloads.</li>
<li> Packaged necessary Swing libraries "swingall.jar" and
"mac.jar" into a "fat" version of the Mac download so folks wouldn't
be forced to download Sun's 11MB behemoth just to get these two.</li>
<li> Repackaged Mac downloads as ".sit" archives.</li>
</ul>
<p><br>
May 4, 2000 </p>
<ul>
<li> Rewrote several methods to make the configurator compliant
with Java 1.1.8 for Mac system compatibility. Also, created Mac-specific
download: packaged jar file with JBindery to give double-clickability
on Mac systems.</li>
<li> Added modem initialization string textbox in Network
panel.</li>
</ul>
April 28, 2000:
<ul>
<li> Initial posting of configurator jar file.</li>
</ul>
<p><br>
</p>
<hr width="100%">
<p>Jon Sevy <br>
Geometric and Intelligent Computing Lab <br>
Department of Mathematics and Computer Science <br>
Drexel University </p>
<p>Comments/questions: <a href="mailto:jsevy@cs.drexel.edu"> jsevy@cs.drexel.edu</a>
</p>
<br>
<br>
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