viii Contents
Restoring the Default Configuration and Password ........................................ ................7-9
Problems with Date and Time ......................................................................................... 7-9
Appendix A
Technical Specifications
Appendix B
Network and Routing Basics
Related Publications .............................................................. ........................................ B-1
Basic Router Concepts ............................................................................. ...... ....... ...... .. B-1
What is a Router? ................................................................................................... B-2
Routing Information Protocol ................................................................................... B-2
IP Addresses and the Internet ................................................................................. B-2
Netmask .................................................................................................................. B-4
Subnet Addressing ...................................................................... ............................ B-5
Private IP Addresses ............................................................................................... B-7
Single IP Address Operation Using NAT ................................................................. B-8
MAC Addresses and Address Resolution Protocol ..................... ............................ B-9
Related Documents ................................................................................................. B-9
Domain Name Server ............................................................................................ B-10
IP Configuration by DHCP .................................................................................... B-10
Ethernet Cabling .................................................................... .......................................B-11
Uplink Switches and Crossover Cables .................................................................B-11
Cable Quality ......................................................................................................... B-12
Internet Security and Firewalls .................................................................................... B-12
What is a Firewall? ...................................................................... .......................... B-12
Stateful Packet Inspection ..................................................................................... B-13
Denial of Service Attack .............................. .......................................................... B-13
Wireless Networking .............................................................. ...................................... B-13
Wireless Network Configuration .................................................. .......................... B-13
Ad Hoc Mode (Peer-to-Peer Workgroup) ....................................................... B-14
Infrastructure Mode ........................................................................................ B-14
Extended Service Set Identification (ESSID) ........................................................ B-14
Authentication and WEP Encryption ..................................................................... B-15
Wireless Channel Selection .................................................................................. B-15