Contents vii
202-10099-01, April 2005
Using the Router as a DH CP server ......................................................................6-11
Using Ad dress Reservation ....................................................................................6-12
Using a D ynamic DN S Service ..................................................................................... 6-13
Configuring Static Routes ................................................ .............................................6-14
Enabling R emote Management Access .................................................................... ...6-16
Using U niversal Plug and Play (U PnP) ........................................................................6-18
Chapter 7
Troubleshooting
Basic Functioning .................................. .........................................................................7-1
Power Light Not On ............................................................................. .....................7-1
Lights N ever Turn Off ............................................................................................... 7-2
LAN or W AN P ort Lights Not On ...................................................................... ........7-2
Troubleshooting the Web Configuration Interface ..........................................................7-3
Troubleshooting the ISP C onnection ............................................................... ...............7-4
Troubleshooting a TCP /IP Network Using a Ping U tility .................................................7 -5
Testing the LAN Path to Your Router .......................................................................7-5
Testing the Path from Your Computer to a Remote Device .....................................7 -6
Restoring the D efault Configuration and Password ........................................................7-7
Problems with Date and Time ............................................................................. ............7-7
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 A ddresses and the Internet ......................................... ... ... .... ... ... ... .... ... ... ... ... ...........B-2
Netmask .................................................................................................................. B-4
Subnet Add ressing .................................................................................................. B-4
Private IP A ddresses ............................................................................................... B-7
Single IP Ad dress Op eration Using N AT ....................................................................... B-7
MA C Ad dresses and Ad dress R esolution P rotocol .................................................B -8
Related Documents ................................................................................................. B-9
Dom ain Name Server ....................................................................................... .......B-9