Lexmark 7675 User's Guide - Page 66

Can I use my printer on a USB and a network connection at the same time?, What is a MAC address?

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REMOVE SOURCES OF INTERFERENCE Other types of radio frequencies can cause problems with the wireless signal on your network. These sources of interference can cause printing issues that seem to come and go. Turn off potential sources of interference where possible. Avoid using microwaves and cordless phones when printing over your wireless network. If another wireless network is operating in the vicinity, change the wireless channel on the access point. Do not place your access point on a printer. Printers can also interfere with the wireless signal. ARRANGE THE NETWORK TO REDUCE SIGNAL ABSORPTION Even when the wireless signal is able to pass through an object, it is slightly weakened. If it passes through too many objects, it can be significantly weakened. All objects absorb part of the wireless signal when it passes through them, and certain types of objects absorb enough to cause communications problems. Place your access point as high in the room as possible to avoid signal absorption. Can I use my printer on a USB and a network connection at the same time? Yes, the printer supports a simultaneous USB and network connection. The printer can be configured in the following ways: • Locally attached (connected to a computer using a USB cable) • Wireless network • Ethernet network • Wireless network and locally attached simultaneously • Ethernet network and locally attached simultaneously Note: Wireless and Ethernet options are available on selected models only. What is a MAC address? A Media Access Control (MAC) address is a 48-bit identifier associated with the hardware of network equipment. The MAC address may also be called the physical address because it is connected to the hardware of a device instead of its software. The MAC address is displayed as a hexadecimal number in this format: 01-23-45-67-89-AB. Every device capable of communicating on a network has a MAC address. Network printers, computers, and routers, whether Ethernet or wireless, all have MAC addresses. While it is possible to change the MAC address of a network device, it is not common practice to do so. For this reason, MAC addresses are considered permanent. IP addresses are easily changed, so MAC addresses are a more reliable method of identifying a specific device on a network. Routers with security capabilities may allow filtering of MAC addresses on networks. This allows a managed list of devices to access the network, identified by their MAC addresses. MAC address filtering can help prevent access on the network from unwanted devices, such as from intruders on a wireless network. MAC address filtering can also prevent legitimate access if you forget to add a new device to the router's list of allowed addresses. If your network uses MAC address filtering, be sure to add the MAC address of the printer to the list of allowed devices. How do I find the MAC address? Most network equipment has a unique hardware identification number to distinguish it from other devices on the network. This is called the Media Access Control (MAC) address. Installing the printer on a wireless network (selected models only) 66

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R
EMOVE
SOURCES
OF
INTERFERENCE
Other types of radio frequencies can cause problems with the wireless signal on your network. These sources of
interference can cause printing issues that seem to come and go. Turn off potential sources of interference where
possible. Avoid using microwaves and cordless phones when printing over your wireless network.
If another wireless network is operating in the vicinity, change the wireless channel on the access point.
Do not place your access point on a printer. Printers can also interfere with the wireless signal.
A
RRANGE
THE
NETWORK
TO
REDUCE
SIGNAL
ABSORPTION
Even when the wireless signal is able to pass through an object, it is slightly weakened. If it passes through too
many objects, it can be significantly weakened. All objects absorb part of the wireless signal when it passes through
them, and certain types of objects absorb enough to cause communications problems. Place your access point as
high in the room as possible to avoid signal absorption.
Can I use my printer on a USB and a network connection at the same
time?
Yes, the printer supports a simultaneous USB and network connection. The printer can be configured in the following
ways:
•
Locally attached (connected to a computer using a USB cable)
•
Wireless network
•
Ethernet network
•
Wireless network and locally attached simultaneously
•
Ethernet network and locally attached simultaneously
Note:
Wireless and Ethernet options are available on selected models only.
What is a MAC address?
A Media Access Control (MAC) address is a 48-bit identifier associated with the hardware of network equipment. The
MAC address may also be called the physical address because it is connected to the hardware of a device instead of
its software. The MAC address is displayed as a hexadecimal number in this format: 01-23-45-67-89-AB.
Every device capable of communicating on a network has a MAC address. Network printers, computers, and routers,
whether Ethernet or wireless, all have MAC addresses.
While it is possible to change the MAC address of a network device, it is not common practice to do so. For this reason,
MAC addresses are considered permanent. IP addresses are easily changed, so MAC addresses are a more reliable
method of identifying a specific device on a network.
Routers with security capabilities may allow filtering of MAC addresses on networks. This allows a managed list of
devices to access the network, identified by their MAC addresses. MAC address filtering can help prevent access on
the network from unwanted devices, such as from intruders on a wireless network. MAC address filtering can also
prevent legitimate access if you forget to add a new device to the router's list of allowed addresses. If your network
uses MAC address filtering, be sure to add the MAC address of the printer to the list of allowed devices.
How do I find the MAC address?
Most network equipment has a unique hardware identification number to distinguish it from other devices on the
network. This is called the
Media Access Control
(MAC) address.
Installing the printer on a wireless network (selected models only)
66