User manual TOP GLOBAL MB6800

[. . . ] ----MB6800 User Guide MobileBridge Gateway Series MB6800 Wireless Cellular Data Gateway User Guide Version 1. 1. 1 Firmware v1. 1. 1 2007-3-8 Top Global USA, any modification of this product will not issue a separate notice. ----MB6800 User Guide Federal Communication Commission Interference Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generatesuses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. [. . . ] Every time the wireless WAN's IP changed, the router will register the new public IP address obtained from the PPP negotiation to the provider. - 46 - Top Global USA. ----MB6800 User Guide 3. 4. 3. 2 DHCP service Figure 3-31 DHCP service You can configure the parameters for the DHCP service on this page. You can enable or disable the DHCP service on the router by check or uncheck the box of "Enable DHCP service". The range of the IP address for the DHCP service to distribute can be defined in the "Range" field. These IP addresses should be in the same subnet with the route's LAN IP address. The "Lease time" field specifies the lease time for each dynamic IP address assignment, with default 86400, in second. MB6800 also supports the permanent IP address assignment to a pre-defined client. Click to add a permanent IP address assignment rule, and click delete an entry. Figure 3-32 Permanent IP address assignment to edit, and click to If the box of "Deny unknown clients" is checked, Any client devices holds the MAC address other than this list will not be able to obtain IP address from the router by DHCP. - 47 - Top Global USA. ----MB6800 User Guide 3. 4. 4 Firewall There are four main categories in this setting: MAC Filter Access rules Port forwarding Services 3. 4. 4. 1 MAC Filter Figure 3-33 MAC Filter - 48 - Top Global USA. ----MB6800 User Guide Function Summary The MAC address is a unique value associated with a network adapter. MAC addresses are also known as hardware addresses or physical addresses. MAC Filter can control the hosts in LAN to allow or deny their Internet access based on their MAC addresses. Detailed Configurations MAC Filter Mode: Disable means no MAC Filter is implemented Allow means only the hosts with the MAC address in the list can access the Internet. Deny means only the hosts with the MAC address in the list can't access the Internet. ARP Cache: MB6800 collects the MAC address information of all the hosts that communicated with MB6800 and displays the information here. You can easily add the MAC addresses you select to the MAC Filter List by click the Add button. Access Control List: This is the MAC address list of all the selected hosts. You can add items with two methods: Select from the ARP Cache or type the MAC address manually in the MAC address edit box on the lower right hand side. Note: Both MAC Filter and Wireless LAN MAC Access Control List can realize the access control based on MAC addresses, but they are differentMAC filter controls the access to the Internet however Wireless LAN Access Control List controls the access to the MB6800 via Wireless LAN. - 49 - Top Global USA. ----MB6800 User Guide 3. 4. 4. 2 Access rules Figure 3-34 Access Rules Function Summary Access Rules is one of the most important functions of MB6800's firewall. All the access rules in firewall are set here. Detailed Configurations The access rules of the firewall in MB6800 have many access rule items. You can maintain these rules with the operations of: Add, Delete, Move up, Move down, Apply. Default Policy: Factory default rules; Enable Checkbox: You can enable or disable a rule by checking or unchecking this checkbox; Move up, Move down: The sequence of the rules in the list is very important for the firewall. When the firewall deals with a data packet, it will check the rules from top to bottom sequentially and execute the first rule which matches the character of this packet. [. . . ] The 802. 11g standards allow wireless networking hardware from different manufacturers to communicate, provided that the hardware complies with the 802. 11g standards. The 802. 11g standards state a maximum data transfer rate of 54Mbps and an operating frequency of 2. 4GHz. The 802. 11g is downward compatible with 802. 11b. What IEEE 802. 11b features are supported?The product supports the following IEEE 802. 11b functions: · CSMA/CA plus Acknowledge protocol · Multi-Channel Roaming · Automatic Rate Selection · RTS/CTS feature · Fragmentation · Power Management Will the information be intercepted while it is being transmitted through the air? [. . . ]