Web Safe Router Reference Manual

viii Contents
Troubleshooting the ISP Connection ..............................................................................8-4
Troubleshooting a TCP/IP Network Using a Ping Utility .................................................8-5
Testing the LAN Path to Your Router .......................................................................8-5
Testing the Path from Your PC to a Remote Device ................................................8-6
Restoring the Default Configuration and Password ........................................................8-7
Using the Default Reset button ................................................................................8-7
Problems with Date and Time .........................................................................................8-7
Appendix A
Technical Specifications
Appendix B
Network and Routing Basics
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
Domain Name Server .............................................................................................. B-9
IP Configuration by DHCP .................................................................................... B-10
Ethernet Cabling ...........................................................................................................B-11
Uplink Switches, Crossover Cables, and MDI/MDIX Switching .............................B-11
Cable Quality ......................................................................................................... B-12
Glossary
Index