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F A Q Broadband Router 1   2 Q1: What is Virtual Private Networking? Q2: What is encryption? Q3: Why do I need a router? Q4: What is NAT? Q5: Isn't NAT the same as "firewall"? Q6: Can the Access Point act as my DHCP Server? Q7: Can I run an application from a remote computer over the wireless network? Q8: What is Ad-hoc? Q9: What is Infrastructure? Q10: What is WEP? Q11: How do I reset the Access Point? Q12: Does the Access Point function as a firewall? Q13: What is the maximum number of users the Access Point facilitates?       Q1: What is Virtual Private Networking?   A:Typically, a Virtual Private Network (VPN) is defined as a group of two or more computer systems connected to a private network with limited public-network access that communicates securely over a public network, such as the internet: Security experts agree that VPNs include encryption, authentication of remote users or hosts, and mechanisms for hiding or masking information about private network topology from potential attackers on the public network: TOP   Q2: What is encryption?   A:Encryption is a mathematical operation that transforms data from standard text to cipher text. Usually the mathematical operation requires that an alphanumeric key be supplied along with the standard text. The key plus standard text is processed by the encryption operation, which produces secure scrambled text. Decryption is the opposite of encryption; it is the mathematical operation that transforms cipher text to standard text. TOP   Q3: Why do I need a router?   A:The increased reliance on computers to store valuable information and the development of applications that share information over the internet through networked personal computers, in combination with the advent of computer hacking, has made information and network security an important issue. Typical analog modems and/or the higher-speed cable/DSL modems do not provide the necessary security to prevent someone from hacking into a computer. Having a device that provides network address translation (NAT) capability provides a simple solution to the hacking issue. TOP   Q4: What is NAT?   A:Network Address Translation is used in a router to prevent hacking into the local area network (LAN). NAT substitutes a "private" IP address of devices located on the LAN side of the router with a new "public" IP address that is visible on the internet side of the router. By virtue of this simple implementation, any of up to 253 devices located on the LAN will be hidden from internet hackers. Only the router's IP address is visible on the internet. TOP   Q5: Isn't NAT the same as "firewall"?   A:No. Though the term "firewall" has been used when describing a router's ability to hide the LAN IP addresses, a true firewall employs a technology called Stateful Packet Inspection (SPI). Firewalls provide a greater level of security and are generally more expensive than a NAT router. Firewalls give the administrator the ability to set up specific IP addresses or domain names that are allowed to be accessed, while refusing any other attempt to access the LAN. This is often referred to as filtering. Firewalls can also allow remote access to the private network through the use of secure login procedures and authentication certificates (VPN). Firewalls are used to prevent Denial of Service (DoS) attacks and can use software to provide content filtering to deny access to unwanted web sites. TOP   Q6: Can the Access Point act as my DHCP Server?   A:No. The Access Point is nothing more than a wireless hub, and as such cannot be configured to handle DHCP capabilities. TOP   Q7: Can I run an application from a remote computer over the wireless network?   A:This will depend on whether or not the application is designed to be used over a network. See the application's user guide to determine if it supports operation over a network. TOP   Q8: What is Ad-hoc?   A:An Ad-hoc wireless LAN is a group of computers, each with a WLAN adapter, connected as an independent wireless LAN. An Ad-hoc wireless LAN is applicable at a departmental scale for a branch or SOHO operation. TOP   Q9: What is Infrastructure?   A:An integrated wireless and wired LAN is called an Infrastructure configuration. Infrastructure is applicable to enterprise scale for wireless access to a central database, or wireless application for mobile workers. TOP   Q10: What is WEP?   A:WEP is Wired Equivalent Privacy, a data privacy mechanism based on a 40-bit shared-key algorithm, as described in the IEEE 802.11 standard. TOP   Q11: How do I reset the Access Point?   A:Press the Reset button on the back of the Access Point for about ten seconds. This will reset the unit to its default settings. TOP   Q12: Does the Access Point function as a firewall?   A:No. The Access Point is only a bridge from wired Ethernet to wireless clients. TOP   Q13: What is the maximum number of users the Access Point facilitates?   A:No more than 65, but this depends on the volume of data and may be less if many users create a large amount of network traffic. TOP     1   2