Quick Reference Guide

202-10042-02 v1.1
viii Contents
Testing the Path from Your Computer to a Remote Device .....................................8-6
Restoring the Default WGX102 Configuration and Password ........................................8-7
Problems with Router Mode Only Date and Time ..........................................................8-7
Appendix A
Technical Specifications
Appendix B
Network, Routing, Firewall, and Basics
Related Publications ...................................................................................................... B-1
Basic Router Concepts .................................................................................................. B-1
What is a Router? ................................................................................................... B-1
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
Internet Security and Firewalls .................................................................................... B-10
What is a Firewall? .................................................................................................B-11
Stateful Packet Inspection ...............................................................................B-11
Denial of Service Attack ..................................................................................B-11
Ethernet Cabling ...........................................................................................................B-11
Category 5 Cable Quality ...................................................................................... B-12
Inside Twisted Pair Cables .................................................................................... B-13
Uplink Switches, Crossover Cables, and MDI/MDIX Switching ............................ B-14
Appendix C
Wireless Networking Basics
Wireless Networking Overview ...................................................................................... C-1
Infrastructure Mode ................................................................................................. C-1
Ad Hoc Mode (Peer-to-Peer Workgroup) ................................................................ C-2
Network Name: Extended Service Set Identification (ESSID) ................................ C-2
Authentication and WEP ................................................................................................ C-3