SnapGear 2.0.1 User Manual
Page 3

4.
Dialin Setup .............................................................................................52
Dialin Setup ......................................................................................................... 53
Dialin User Accounts ........................................................................................... 55
Account list .......................................................................................................... 56
Remote User Configuration ................................................................................. 58
5.
DHCP Server ...........................................................................................63
DHCP Server Configuration................................................................................. 63
DHCP Proxy ........................................................................................................ 67
6.
Firewall ....................................................................................................68
Incoming Access.................................................................................................. 68
CyberGuard SG Administrative Web Server ....................................................... 70
Packet Filtering .................................................................................................... 73
NAT...................................................................................................................... 77
Rules.................................................................................................................... 80
Access Control and Content Filtering .................................................................. 81
7.
Intrusion Detection .................................................................................89
Basic Intrusion Detection and Blocking ............................................................... 91
Advanced Intrusion Detection .............................................................................. 93
8.
Web Cache ..............................................................................................98
Web Cache Setup................................................................................................ 99
Network Shares ................................................................................................. 100
Peers ................................................................................................................. 103
Set up LAN PCs to Use the Web Cache ........................................................... 103
9.
Virtual Private Networking ...................................................................104
PPTP Client Setup ............................................................................................. 105
PPTP Server Setup ........................................................................................... 107
IPSec Setup....................................................................................................... 118
Set up the Branch Office.................................................................................... 118
Configuring the Headquarters............................................................................ 132
Tunnel List ......................................................................................................... 136
NAT Traversal Support ...................................................................................... 140
Dynamic DNS Support....................................................................................... 140
Certificate Management..................................................................................... 141
Troubleshooting ................................................................................................. 147
GRE ................................................................................................................... 151
L2TP .................................................................................................................. 157