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Page 11 / 427 Scroll up to view Page 6 - 10
P-2602H(W)(L)-DxA Series User’s Guide
Table of Contents
11
7.1.4 IP Address Assignment
............................................................................
95
7.1.4.1 IP Assignment with PPPoA or PPPoE Encapsulation
.....................
95
7.1.4.2 IP Assignment with RFC 1483 Encapsulation
.................................
95
7.1.4.3 IP Assignment with ENET ENCAP Encapsulation
..........................
95
7.1.5 Nailed-Up Connection (PPP)
....................................................................
95
7.1.6 NAT
...........................................................................................................
95
7.2 Metric
................................................................................................................
96
7.3 Traffic Shaping
...................................................................................................
96
7.3.1 ATM Traffic Classes
..................................................................................
97
7.3.1.1 Constant Bit Rate (CBR)
.................................................................
97
7.3.1.2 Variable Bit Rate (VBR)
...................................................................
97
7.3.1.3 Unspecified Bit Rate (UBR)
.............................................................
98
7.4 Zero Configuration Internet Access
....................................................................
98
7.5 Internet Access Setup
.......................................................................................
98
7.5.1 Advanced Internet Access Setup
.............................................................
101
7.6 WAN More Connections
..................................................................................
102
7.7 Traffic Redirect
.................................................................................................
103
7.8 WAN Backup Setup
.........................................................................................
105
Chapter 8
LAN Setup
.............................................................................................................
107
8.1 LAN Overview
.................................................................................................
107
8.1.1 LANs, WANs and the ZyXEL Device
......................................................
107
8.1.2 DHCP Setup
...........................................................................................
108
8.1.2.1 IP Pool Setup
................................................................................
108
8.1.3 DNS Server Address
..............................................................................
108
8.1.4 DNS Server Address Assignment
...........................................................
109
8.2 LAN TCP/IP
......................................................................................................
109
8.2.1 IP Address and Subnet Mask
.................................................................
109
8.2.1.1 Private IP Addresses
.....................................................................
110
8.2.2 RIP Setup
...............................................................................................
110
8.2.3 Multicast
..................................................................................................
111
8.2.4 Any IP
.....................................................................................................
111
8.2.4.1 How Any IP Works
........................................................................
112
8.3 Configuring LAN IP
..........................................................................................
113
8.3.1 Configuring Advanced LAN Setup
...........................................................
113
8.4 DHCP Setup
.....................................................................................................
115
8.5 LAN Client List
.................................................................................................
116
8.6 LAN IP Alias
.....................................................................................................
117
Chapter 9
Wireless LAN
........................................................................................................
121
9.1 Wireless Network Overview
.............................................................................
121
Page 12 / 427
P-2602H(W)(L)-DxA Series User’s Guide
12
Table of Contents
9.2 Wireless Security Overview
.............................................................................
122
9.2.1 SSID
.......................................................................................................
122
9.2.2 MAC Address Filter
.................................................................................
122
9.2.3 User Authentication
................................................................................
123
9.2.4 Encryption
...............................................................................................
123
9.2.5 One-Touch Intelligent Security Technology (OTIST)
...............................
124
9.3 Wireless Performance Overview
......................................................................
124
9.3.1 Quality of Service (QoS)
.........................................................................
124
9.4 Additional Wireless Terms
................................................................................
125
9.5 General WLAN Screen
....................................................................................
125
9.5.1 No Security
.............................................................................................
126
9.5.2 WEP Encryption Screen
.........................................................................
127
9.5.3 WPA(2)-PSK
...........................................................................................
128
9.5.4 WPA(2) Authentication Screen
...............................................................
130
9.5.5 Wireless LAN Advanced Setup
...............................................................
131
9.6 OTIST Screen
..................................................................................................
133
9.6.1 Notes on OTIST
......................................................................................
135
9.7 MAC Filter
...................................................................................................
136
9.8 QoS Screen
......................................................................................................
137
9.8.1 Application Priority Configuration
.............................................................
138
Chapter 10
Network Address Translation (NAT) Screens
....................................................
141
10.1 NAT Overview
...............................................................................................
141
10.1.1 NAT Definitions
.....................................................................................
141
10.1.2 What NAT Does
....................................................................................
142
10.1.3 How NAT Works
...................................................................................
142
10.1.4 NAT Application
....................................................................................
143
10.1.5 NAT Mapping Types
.............................................................................
143
10.2 SUA (Single User Account) Versus NAT
........................................................
144
10.3 NAT General Setup
.......................................................................................
144
10.4 Port Forwarding
..............................................................................................
145
10.4.1 Default Server IP Address
....................................................................
146
10.4.2 Port Forwarding: Services and Port Numbers
......................................
146
10.4.3 Configuring Servers Behind Port Forwarding (Example)
......................
146
10.5 Configuring Port Forwarding
.........................................................................
147
10.5.1 Port Forwarding Rule Edit
.....................................................................
148
10.5.2 SIP ALG
................................................................................................
149
Chapter 11
Voice
......................................................................................................................
151
11.1 Introduction to VoIP
........................................................................................
151
11.2
SIP
.................................................................................................................
151
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P-2602H(W)(L)-DxA Series User’s Guide
Table of Contents
13
11.2.1 SIP Identities
.........................................................................................
151
11.2.1.1 SIP Number
.................................................................................
151
11.2.1.2 SIP Service Domain
....................................................................
152
11.2.2 SIP Call Progression
.............................................................................
152
11.2.3 SIP Servers
...........................................................................................
152
11.2.3.1 SIP User Agent
............................................................................
153
11.2.3.2 SIP Proxy Server
.........................................................................
153
11.2.3.3 SIP Redirect Server
.....................................................................
154
11.2.3.4 SIP Register Server
.....................................................................
154
11.3 SIP Settings Screen
......................................................................................
154
11.3.1 RTP
.......................................................................................................
156
11.4 Pulse Code Modulation
..................................................................................
156
11.5 Voice Coding
..................................................................................................
156
11.5.1 G.711
.....................................................................................................
156
11.5.2 G.729
.....................................................................................................
156
11.6 PSTN Call Setup Signaling
............................................................................
157
11.7 MWI (Message Waiting Indication)
.................................................................
157
11.8 Custom Tones (IVR)
.......................................................................................
157
11.8.0.1 Recording Custom Tones
............................................................
157
11.8.0.2 Listening to Custom Tones
..........................................................
158
11.8.0.3 Deleting Custom Tones
...............................................................
158
11.9 Advanced SIP Setup Screen
.........................................................................
158
11.10 Quality of Service (QoS)
...............................................................................
162
11.10.1 Type Of Service (ToS)
.........................................................................
162
11.10.2 DiffServ
...............................................................................................
162
11.10.2.1 DSCP and Per-Hop Behavior
....................................................
162
11.10.3 VLAN
...................................................................................................
163
11.10.4 SIP QoS Screen
..................................................................................
163
11.11 Phone
...........................................................................................................
164
11.12 PSTN Line (“L” models only)
........................................................................
164
11.12.1 Voice Activity Detection/Silence Suppression
.....................................
164
11.12.2 Comfort Noise Generation
..................................................................
164
11.12.3 Echo Cancellation
...............................................................................
164
11.13 Analog Phone Screen
.................................................................................
165
11.14 Advanced Analog Phone Setup Screen
......................................................
166
11.14.1 Common Phone Settings Screen
........................................................
167
11.15 Supplementary Phone Services Overview
...................................................
168
11.15.1 The Flash Key
.....................................................................................
168
11.15.2 Europe Type Supplementary Phone Services
....................................
168
11.15.2.1 European Call Hold
...................................................................
169
11.15.2.2 European Call Waiting
..............................................................
169
11.15.2.3 European Call Transfer
.............................................................
169
11.15.2.4 European Three-Way Conference
.............................................
170
Page 14 / 427
P-2602H(W)(L)-DxA Series User’s Guide
14
Table of Contents
11.15.3 USA Type Supplementary Services
....................................................
170
11.15.3.1 USA Call Hold
............................................................................
170
11.15.3.2 USA Call Waiting
......................................................................
171
11.15.3.3 USA Call Transfer
......................................................................
171
11.15.3.4 USA Three-Way Conference
.....................................................
171
11.16 Phone Region Screen
.................................................................................
171
11.17 Speed Dial
....................................................................................................
172
11.17.1 Peer-to-Peer Calls
..............................................................................
172
11.18 Speed Dial Screen
.......................................................................................
173
11.19 Incoming Call Policy Screen
........................................................................
174
11.20 PSTN Line Screen
(“L” models only)
...........................................................
176
Chapter 12
Phone Usage
........................................................................................................
179
12.1 Dialing a Telephone Number
..........................................................................
179
12.2 Using Speed Dial to Dial a Telephone Number
..............................................
179
12.3 Internal Calls
..................................................................................................
179
12.4 Checking the Device’s IP Address
.................................................................
179
12.5 Auto Firmware Upgrade
.................................................................................
180
Chapter 13
Firewalls
................................................................................................................
181
13.1 Firewall Overview
..........................................................................................
181
13.2 Types of Firewalls
..........................................................................................
181
13.2.1 Packet Filtering Firewalls
......................................................................
181
13.2.2 Application-level Firewalls
....................................................................
182
13.2.3
Stateful Inspection Firewalls
................................................................
182
13.3 Introduction to ZyXEL’s Firewall
.....................................................................
182
13.3.1 Denial of Service Attacks
......................................................................
183
13.4 Denial of Service
............................................................................................
183
13.4.1 Basics
...................................................................................................
183
13.4.2 Types of DoS Attacks
...........................................................................
184
13.4.2.1 ICMP Vulnerability
......................................................................
186
13.4.2.2 Illegal Commands (NetBIOS and SMTP)
....................................
186
13.4.2.3 Traceroute
...................................................................................
187
13.5 Stateful Inspection
..........................................................................................
187
13.5.1 Stateful Inspection Process
..................................................................
188
13.5.2 Stateful Inspection on Your ZyXEL Device
...........................................
188
13.5.3 TCP Security
.........................................................................................
189
13.5.4 UDP/ICMP Security
..............................................................................
189
13.5.5 Upper Layer Protocols
..........................................................................
190
13.6 Guidelines for Enhancing Security with Your Firewall
....................................
190
13.6.1 Security In General
...............................................................................
190
Page 15 / 427
P-2602H(W)(L)-DxA Series User’s Guide
Table of Contents
15
13.7 Packet Filtering Vs Firewall
............................................................................
191
13.7.1 Packet Filtering:
....................................................................................
191
13.7.1.1 When To Use Filtering
.................................................................
192
13.7.2 Firewall
.................................................................................................
192
13.7.2.1 When To Use The Firewall
..........................................................
192
Chapter 14
Firewall Configuration
.........................................................................................
193
14.1 Access Methods
.............................................................................................
193
14.2 Firewall Policies Overview
............................................................................
193
14.3 Rule Logic Overview
.....................................................................................
194
14.3.1 Rule Checklist
.......................................................................................
194
14.3.2 Security Ramifications
..........................................................................
194
14.3.3 Key Fields For Configuring Rules
.........................................................
195
14.3.3.1 Action
..........................................................................................
195
14.3.3.2 Service
........................................................................................
195
14.3.3.3 Source Address
...........................................................................
195
14.3.3.4 Destination Address
....................................................................
195
14.4 Connection Direction
......................................................................................
195
14.4.1 LAN to WAN Rules
...............................................................................
196
14.4.2 Alerts
.....................................................................................................
196
14.5 General Firewall Policy
...............................................................................
196
14.6 Firewall Rules Summary
...............................................................................
197
14.6.1 Configuring Firewall Rules
...................................................................
199
14.6.2 Customized Services
............................................................................
202
14.6.3 Configuring A Customized Service
......................................................
202
14.7 Example Firewall Rule
...................................................................................
203
14.8 DoS Thresholds
............................................................................................
207
14.8.1 Threshold Values
..................................................................................
207
14.8.2 Half-Open Sessions
..............................................................................
208
14.8.2.1 TCP Maximum Incomplete and Blocking Time
...........................
208
14.8.3 Configuring Firewall Thresholds
............................................................
209
Chapter 15
Content Filtering
..................................................................................................
211
15.1 Content Filtering Overview
............................................................................
211
15.2 Configuring Keyword Blocking
.....................................................................
211
15.3 Configuring the Schedule
.............................................................................
212
15.4 Configuring Trusted Computers
...................................................................
213
Chapter 16
Introduction to IPSec
...........................................................................................
215
16.1 VPN Overview
................................................................................................
215

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