User manual

Peers .................................................................................................................120
Set up LAN PCs to Use the Web Cache ...........................................................120
9. Virtual Private Networking...................................................................121
PPTP Client Setup.............................................................................................122
PPTP Server Setup ...........................................................................................124
IPSec Setup.......................................................................................................135
Set up the Branch Office....................................................................................135
Configuring the Headquarters............................................................................149
Tunnel List .........................................................................................................153
NAT Traversal Support ......................................................................................157
Dynamic DNS Support.......................................................................................157
Certificate Management.....................................................................................158
Troubleshooting.................................................................................................164
GRE...................................................................................................................168
L2TP ..................................................................................................................174
10. System...................................................................................................176
Date and Time ...................................................................................................176
Users .................................................................................................................178
Diagnostics ........................................................................................................180
Advanced...........................................................................................................182
Technical Support..............................................................................................185
Appendix A – IP Address Ranges................................................................186
Appendix B – Terminology...........................................................................187
Appendix C – System Log............................................................................194
Access Logging .................................................................................................194
Creating Custom Log Rules...............................................................................196
Rate Limiting......................................................................................................199
Administrative Access Logging..........................................................................200
Boot Log Messages...........................................................................................200
Appendix D – Firmware Upgrade Practices and Precautions ...................201