Canon PIXMA E481, Online Manual, Page: 257 / 776

F
• Firewall
It is a system that prevents an unlawful computer access in the network. To prevent, you can use the
firewall function of a broadband router, the security software installed in the computer, or operation
system for computer.
I
• IEEE 802.11b
International standard for wireless LAN using the 2.4 GHz frequency range with a throughput of up to
11 Mbps.
• IEEE 802.11g
International standard for wireless LAN using the 2.4 GHz frequency range with a throughput of up to
54 Mbps. Compatible with 802.11b.
• IEEE 802.11n
International standard for wireless LAN using the 2.4 GHz and 5 GHz frequency ranges. Even when
using two or more antennas simultaneously or obtaining a bigger transfer rate than before by using
multiple communication channels at the same time, the transmission speed may be influenced by the
connected apparatus.
At the maximum transfer rate of 600 Mbps, it is possible to communicate with multiple computer
terminals within a dozen or so metre radius.
Compatible with 802.11b and 802.11g.
• IP Address
A unique number with four parts separated by dots. Every network device that is connected to the
Internet has an IP address. Example: 192.168.0.1
An IP address is usually assigned by a wireless router or a DHCP server of the router automatically.
• IPv4/IPv6
They are internetwork-layer protocol used on the internet. IPv4 uses 32-bit addresses and IPv6 uses
128-bit addresses.
K
• Key Format
Select either ASCII or Hex as the Password (WEP) key format. The character that can be used for the
WEP key differs depending on the selected key formats.
◦ ASCII
Specify with a 5 or 13-character string that can include alphanumeric and underscore "_"
characters. It is case-sensitive.
◦ Hex
Specify a 10-digit or 26-digit string that can contain hexadecimal (0 to 9, A to F, and a to f).
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