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Table of Contents
ZyWALL 2 Plus User’s Guide
12
8.11 Advanced Modem Setup ................................................................................................ 158
8.11.1 AT Command Strings ............................................................................................. 158
8.11.2 DTR Signal ............................................................................................................. 159
8.11.3 Response Strings ................................................................................................... 159
8.12 Configuring Advanced Modem Setup .............................................................................. 159
Chapter 9
DMZ Screens .........................................................................................................................161
9.1 DMZ ................................................................................................................................. 161
9.2 Configuring DMZ ............................................................................................................... 161
9.3 DMZ Static DHCP ............................................................................................................ 164
9.4 DMZ IP Alias .................................................................................................................... 165
9.5 DMZ Public IP Address Example ...................................................................................... 167
9.6 DMZ Private and Public IP Address Example ................................................................... 167
9.7 DMZ Port Roles ............................................................................................................... 168
Chapter 10
Wireless LAN.........................................................................................................................171
10.1 Wireless LAN Introduction ............................................................................................... 171
10.2 Configuring WLAN ......................................................................................................... 171
10.3 WLAN Static DHCP ....................................................................................................... 174
10.4 WLAN IP Alias ............................................................................................................... 175
10.5 WLAN Port Roles ........................................................................................................... 177
Part III: Security.................................................................................... 179
Chapter 11
Firewall...................................................................................................................................181
11.1 Firewall Overview ............................................................................................................ 181
11.2 Packet Direction Matrix .................................................................................................... 182
11.3 Packet Direction Examples .............................................................................................. 183
11.3.1 To VPN Packet Direction ........................................................................................ 184
11.3.2 From VPN Packet Direction ................................................................................... 185
11.3.3 From VPN To VPN Packet Direction ...................................................................... 187
11.4 Security Considerations ...................................................................................................188
11.5 Firewall Rules Example ................................................................................................... 188
11.6 Asymmetrical Routes .......................................................................................................190
11.6.1 Asymmetrical Routes and IP Alias ......................................................................... 190
11.7 Firewall Default Rule (Router Mode) ................................................................................ 191
11.8 Firewall Default Rule (Bridge Mode) .............................................................................. 193
11.9 Firewall Rule Summary ................................................................................................... 194