Other wireless security guidelines – HP Officejet 7110 Wide Format ePrinter - H812a User Manual

Page 161

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CAUTION: This method is not recommended, however, because your MAC addresses can easily

be read and falsified by unwanted users outside your network.

To add hard addresses to a wireless router or wireless access point

1.

Print the network configuration page, and then locate the printer's hardware address. For more

information, see Understand the network configuration page on page 83.

NOTE: The printer maintains separate hardware addresses for the Ethernet connection and for

wireless connection. Both hardware addresses are listed on the printer's network configuration

page.

2.

Open the configuration utility for the wireless router or wireless access point, and add the

printer's hardware address to the list of accepted hardware addresses.

NOTE: For more information about using the configuration utility, see the documentation provided

with the router or wireless access point.

Other wireless security guidelines

To keep the wireless network secure, follow these guidelines:

Use a wireless password with at least 20 random characters. You can use up to 64 characters in

a wireless password.

Avoid any common words or phrases, easy sequences of characters (such as all 1s), and

personally-identifiable information for wireless passwords. Always use random strings composed

of uppercase and lowercase letters, numbers, and if allowed, special characters such as

punctuation.

Change the default wireless password provided by the manufacturer for administrator access to

the access point or wireless router. Some routers let you change the administrator name as well.

Turn off administrative access over wireless if possible. If you do this, you need to connect to the

router with an Ethernet connection when you want to make configuration changes.

Turn off remote administrative access over the Internet on your router, if possible. You can use

Remote Desktop to make an encrypted connection to a computer running behind your router

and make configuration changes from the local computer you are accessing over the Internet.

To avoid accidentally connecting to another party's wireless network, turn off the setting to

automatically connect to non-preferred networks. This is disabled by default in Windows XP.

Guidelines for reducing interference on a wireless network

The following tips will help reduce the chances for interference in a wireless network:

Keep the wireless devices away from large metal objects, such as filing cabinets, and other

electromagnetic devices, such as microwaves and cordless telephones, as these objects can

disrupt radio signals.

Keep the wireless devices away from large masonry structures and other building structures as

these objects can absorb radio waves and lower signal strength.

Position the access point or wireless router in a central location in line of sight with the wireless

devices on the network.

Keep all wireless devices on the network within range of one another.

148 Appendix C Network setup

ENWW

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