Canon PIXMA MG6821 User Manual - Page 353

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. • Infrastructure Client computer and machine setup where all wireless communications pass through a wireless router. • 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 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. 353