Table of Contents
13.8.3 Configuration Details: Incoming .............................................................................
178
13.8.4 Call Progression .....................................................................................................
179
13.9
VoIP Trunking Example: PSTN to PSTN via VoIP ..........................................................
13.9.1 Background Information .........................................................................................
180
13.9.2 Configuration Details: Outgoing .............................................................................
13.9.3 Configuration Details: Incoming .............................................................................
182
13.9.4 Call Progression .....................................................................................................
183
185
Chapter 14
Firewall...................................................................................................................................
187
14.1
Firewall Overview ............................................................................................................
14.1.1 Stateful Inspection Firewall ....................................................................................
14.1.2 About the ZyXEL Device Firewall ...........................................................................
14.1.3 Guidelines For Enhancing Security With Your Firewall ..........................................
188
14.1.4 The Firewall, NAT and Remote Management ........................................................
14.2
Triangle Route .................................................................................................................
189
14.2.1 The “Triangle Route” Problem ................................................................................
14.2.2 Solving the “Triangle Route” Problem ....................................................................
190
14.3
Firewall Screens ..............................................................................................................
191
14.3.1 General Firewall Screen .........................................................................................
14.3.2 Firewall Services Screen ........................................................................................
192
Chapter 15
Content Filter.........................................................................................................................
195
15.1
Content Filtering Overview ..............................................................................................
15.2
Content Filtering Screens ................................................................................................
15.2.1 Content Filter Screen .............................................................................................
15.2.2 Content Filter Schedule Screen .............................................................................
197
199
Chapter 16
Static Route ...........................................................................................................................
201
16.1
Static Route Overview .....................................................................................................
16.2
Static Route Screens .......................................................................................................
16.2.1 IP Static Route Screen ...........................................................................................
16.2.2 IP Static Route Edit Screen ....................................................................................
202
16
P-2302HWUDL-P1 Series User’s Guide