44

Chapter 7: Internet Printing Protocol (IPP)

Windows IPP Client Setup

Wireless-G PrintServer for USB 2.0

Changing the IPP Port Settings

After the IPP port is created, you can reach the

Configure IPP Port

screen by performing these steps:

1.

Open the

Printers

folder (

Start

=>

Settings

=>

Printers

).

2.

Right-click

IPP Printer

and select

Properties

.

3.

Click the

Port Settings

or

Configure Port

button (Details or Port tab, depending on your version of Windows).

The

Configure IPP Port

screen (shown in Figure 7-4) will appear.

There are two settings, Retry Interval and Retry Count, which can be adjusted if you have problems connecting to

the IPP Server.

•

The Retry Interval sets the time interval (in seconds) between connection attempts. Increase this number if

you have a poor connection, or the remote server is very busy.

•

The Retry Count sets how many connection attempts will be made. Increase this number if you have a poor

connection, or the remote server is very busy.

IPP Client Setup for Windows 2000 and XP

Windows 2000 and XP have their own IPP Client, and there is no need to install the supplied IPP Client Software.

To use this IPP Client with the PrintServer, follow this procedure:

1.

Start the Add Printer Wizard.

2.

Select

Network Printer

and click

Next

to see the

Locate your Printer

screen, as shown in Figure 7-5.

3.

Select

Connect to a printer on the Internet or on your intranet

, and enter the URL of the IPP Server as

follows, where ip_address represents the IP Address of the IPP Server, and 631 represents the port number.

Port 1

ip_address:631/ipp/P1

Figure 8-4: Configure IPP Port

Figure 8-5: Locate Your Printer

NOTE:

These entries are case-sensitive. They must be entered as shown,

with “ipp” in lowercase and P1 in uppercase.

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Chapter 7: Internet Printing Protocol (IPP)

Windows IPP Client Setup

Wireless-G PrintServer for USB 2.0

4.

If the connection can be established, and the printer on that port is online, the dialog box shown in Figure 7-6

will be displayed. This screen notifies you that the printer driver is not installed. Click the

OK

button.

5.

Select the printer manufacturer and model to match the printer connected to the appropriate port on the IPP

Server.

6.

Click

Next

and complete the Wizard.

The IPP printer is now ready for use.

Using IPP Printers

The IPP Printer can be selected and used like any other Windows printer. If the IPP Server is not on your network,

your Internet connection needs to be active.

If you wish to check the availability of the remote IPP Server, you can use the Query IPP Printer program installed

with the Add IPP Port program.

An IPP Server may be unavailable for any of the following reasons:

•

It is powered off.

•

A printer problem has caused the IPP Server to cease responding, and a restart (reboot) is required.

•

The Server’s IP Address has changed.

•

The Internet connection for the IPP Server is down.

•

Network congestion causes the connection attempt to time out.

If using the supplied IPP Client software, there are two settings, Retry Interval and Retry Count, which can be

adjusted if you have problems connecting to the IPP Server.

See the previous section, “Changing the IPP Port Settings,” for details.

Figure 8-6: Connect to Printer

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46

Appendix A:

Common Problems and Solutions

Wireless-G PrintServer for USB 2.0

Appendix A: Troubleshooting

This appendix consists of “Common Problems and Solutions”. Provided are possible solutions to problems that

may occur during the installation and operation of the PrintServer. Read the descriptions below to help you solve

your problems. If you can’t find an answer here, check the Linksys website at

www.linksys.com

.

Common Problems and Solutions

If the PrintServer is not working correctly, follow the advice in this chapter. If you have trouble printing, see

Chapter 3 first, and then go to Chapter 8. If this Troubleshooting section does not resolve your problem, please

see Appendix I to contact Technical Support.

1.

All the LEDs on the front of the PrintServer are off.

Check the power supply and the power connection.

2.

The PrintServer’s Status LED lights up orange or flashes continuously.

Reset the PrintServer. Unplug the power supply and plug it back in, or press the

Reset

button on the back of

the PrintServer for approximately ten seconds.

3.

I am using DHCP, and the PrintServer gets an IP address conflict involving the PrintServer.

If the PrintServer is left on when the DHCP server is turned off, the PrintServer will retain its IP address

without informing the DHCP server. Reset the PrintServer so it will obtain a new IP address. This problem may

also occur if you assigned a static IP address within the range used by the DHCP server. If so, use another

address NOT within the range used by the DHCP server.

4.

The PrintServer’s LAN LED is not lighting up.

Check your cabling and make sure that the Link LED on your hub or switch is lit.

5.

A printer connected to the PrintServer cannot print or prints garbage.

Do the following:

•

Check the cable connection between the PrintServer and printer.

•

Make sure the printer driver in the application program or Windows matches the printer.

•

Make sure the cable distance is not too long, less than 10 feet.

6.

The Configuration button on the Printer Status screen in Bi-Admin is grayed out, even though my

printer is bi-directional.

The button is unavailable until the printer has finished its print jobs and sits idle.

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Appendix A:

Common Problems and Solutions

Wireless-G PrintServer for USB 2.0

7.

To start over, I need to set the PrintServer to its factory default settings.

Unplug the PrintServer’s power adapter. Press the

Reset

button while you plug in the PrintServer’s power

adapter. Continue to hold the

Reset

button for 10 seconds and then release it. This will reset the password,

wireless, and other settings on the PrintServer to the factory defaults. In other words, the PrintServer will

revert to its original factory configuration.

8.

I need to upgrade the firmware.

In order to upgrade the firmware with the latest features, you need to go to the Linksys website and download

the latest firmware at

www.linksys.com

.

Follow these steps:

1.

Go to the Linksys website at

and download the latest firmware.

2.

To upgrade the firmware, follow the steps in “Appendix D: Upgrading Firmware.”

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Appendix B: Wireless Security

A Brief Overview

Wireless-G PrintServer for USB 2.0

Appendix B: Wireless Security

A Brief Overview

Whenever data—in the form of files, emails, or messages—is transmitted over your wireless network, it is open

to attacks. Wireless networking is inherently risky because it broadcasts information on radio waves. Just like

signals from your cellular or cordless phone can be intercepted, signals from your wireless network can also be

compromised. What are the risks inherent in wireless networking? Read on.

What Are The Risks?

Computer network hacking is nothing new. With the advent of wireless networking, hackers use methods both

old and new to do everything from stealing your bandwidth to stealing your data. There are many ways this is

done, some simple, some complex. As a wireless user, you should be aware of the many ways they do this.

Every time a wireless transmission is broadcast, signals are sent out from your wireless PC or access point, but

not always directly to its destination. The receiving PC or access point can hear the signal because it is within

that radius. Just as with a cordless phone, cellular phone, or any kind of radio device, anyone else within that

radius, who has their device set to the same channel or bandwidth can also receive those transmission.

Wireless networks are easy to find. Hackers know that, in order to join a wireless network, your wireless PC will

typically first listen for “beacon messages”. These are identifying packets transmitted from the wireless network

to announce its presence to wireless nodes looking to connect. These beacon frames are decrypted and contain

much of the network’s information, such as the network’s SSID (Service Set Identifier) and the IP address of the

network PC or access point. The SSID is analogous to the network's name. With this information broadcast to

anyone within range, hackers are often provided with just the information they need to access that network.

One result of this, seen in many large cities and business districts, is called “Warchalking”. This is the term used

for hackers looking to access free bandwidth and free Internet access through your wireless network. The marks

they chalk into the city streets are well documented in the Internet and communicate exactly where available

wireless bandwidth is located for the taking.

Even keeping your network settings, such as the SSID and the channel, secret won’t prevent a hacker from

listening for those beacon messages and stealing that information. This is why most experts in wireless

networking strongly recommend the use of WEP (Wireless Equivalent Privacy). WEP encryption scrambles your

wireless signals so they can only be recognized within your wireless network.

Figure B-1: Warchalking

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