ZyXEL NBG420N Manuel d'utilisateur Page 135
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Chapter 10 DHCP
NBG420N User’s Guide
135
10.4 Client List Screen
The DHCP table shows current DHCP client information (including IP Address, Host Name
and MAC Address) of network clients using the NBG420N’s DHCP servers.
Configure this screen to always assign an IP address to a MAC address (and host name). Click
Network > DHCP Server > Client List.
" You can also view a read-only client list by clicking the DHCP Table (Details...)
hyperlink in the Status screen.
The following screen displays.
DNS Server
DNS Servers
Assigned by DHCP
Server
The NBG420N passes a DNS (Domain Name System) server IP address (in the
order you specify here) to the DHCP clients. The NBG420N only passes this
information to the LAN DHCP clients when you select the Enable DHCP Server
check box. When you clear the Enable DHCP Server check box, DHCP service
is disabled and you must have another DHCP sever on your LAN, or else the
computers must have their DNS server addresses manually configured.
First DNS Server
Second DNS
Server
Third DNS Server
Select From ISP if your ISP dynamically assigns DNS server information (and
the NBG420N's WAN IP address). The field to the right displays the (read-only)
DNS server IP address that the ISP assigns.
Select User-Defined if you have the IP address of a DNS server. Enter the DNS
server's IP address in the field to the right. If you chose User-Defined, but leave
the IP address set to 0.0.0.0, User-Defined changes to None after you click
Apply. If you set a second choice to User-Defined, and enter the same IP
address, the second User-Defined changes to None after you click Apply.
Select DNS Relay to have the NBG420N act as a DNS proxy. The NBG420N's
LAN IP address displays in the field to the right (read-only). The NBG420N tells
the DHCP clients on the LAN that the NBG420N itself is the DNS server. When a
computer on the LAN sends a DNS query to the NBG420N, the NBG420N
forwards the query to the NBG420N's system DNS server (configured in the
WAN > Internet Connection screen) and relays the response back to the
computer. You can only select DNS Relay for one of the three servers; if you
select DNS Relay for a second or third DNS server, that choice changes to None
after you click Apply.
Select None if you do not want to configure DNS servers. If you do not configure
a DNS server, you must know the IP address of a computer in order to access it.
Apply Click Apply to save your changes back to the NBG420N.
Reset Click Reset to begin configuring this screen afresh.
Table 51 Network > DHCP > Advanced
LABEL DESCRIPTION
- User’s Guide 1
- About This User's Guide 3
- Document Conventions 4
- Icons Used in Figures 5
- Safety Warnings 6
- Safety Warnings 7
- Contents Overview 10
- NBG420N User’s Guide 10
- Table of Contents 11
- Chapter 7 13
- List of Figures 19
- List of Tables 25
- Introduction 29
- CHAPTER 1 31
- 1.3 AP Mode 32
- 1.7 LEDs 33
- CHAPTER 2 35
- Chapter 2 The WPS Button 36
- CHAPTER 3 37
- Chapter 23 on page 257 38
- 3.3 Resetting the NBG420N 39
- 3.5.1 Navigation Panel 42
- Table 5 Screens Summary 43
- 3.5.2 Summary: Any IP Table 44
- Table 6 Summary: DHCP Table 45
- 3.5.6 Summary: VPN Monitor 47
- CHAPTER 4 49
- 4.2.1 System Name 50
- 4.2.2 Domain Name 51
- Chapter 4 Connection Wizard 52
- 4.3.1 Basic (WEP) Security 53
- 4.4.1 Ethernet Connection 55
- 4.4.2 PPPoE Connection 55
- 4.4.3 PPTP Connection 56
- Chapter 4 Connection Wizard 57
- 4.4.4 Your IP Address 58
- 4.4.9 WAN MAC Address 61
- CHAPTER 5 65
- Chapter 5 AP Mode 66
- Figure 32 Status: AP Mode 66
- Chapter 5 AP Mode 67
- 5.3.1 Navigation Panel 68
- 5.4.1 LAN Settings 69
- CHAPTER 6 73
- Chapter 6 Tutorials 74
- Wireless Client 75
- NBG420N 75
- SSID SSID_Example3 76
- Chapter 6 Tutorials 77
- Figure 39 Status: AP Mode 78
- Figure 45 Property 81
- Figure 46 Local Policy 81
- Figure 47 Remote Policy 82
- Figure 49 IPSec Algorithm 82
- Figure 55 IPSec Algorithm 84
- Figure 56 VPN Summary 84
- Figure 58 SA Monitor 85
- CHAPTER 7 89
- 7.2.1 SSID 90
- 7.2.2 MAC Address Filter 90
- 7.2.3 User Authentication 90
- 7.2.4 Encryption 91
- 7.3 Roaming 92
- 7.4 Quality of Service 93
- 7.4.1 WMM QoS 94
- 7.5.1 No Security 96
- 7.5.2 WEP Encryption 96
- 7.5.3 WPA-PSK/WPA2-PSK 98
- 7.5.4 WPA/WPA2 99
- Chapter 7 Wireless LAN 100
- 7.6 MAC Filter 101
- Chapter 7 Wireless LAN 103
- 7.9 WiFi Protected Setup 106
- 7.9.2 WPS Station Screen 107
- 7.9.3 Scheduling 107
- Figure 72 Scheduling 108
- Table 39 Scheduling 108
- 7.10.1 Login Screen 109
- 7.10.2 System Status 110
- 7.10.3 WPS in Progress 112
- 7.10.4 Port Forwarding 113
- Figure 76 Port Forwarding 114
- Table 42 Port Forwarding 114
- Figure 77 Login Screen 115
- CHAPTER 8 117
- 8.4 Internet Connection 118
- 8.4.2 PPPoE Encapsulation 119
- Chapter 8 WAN 120
- Chapter 8 WAN 121
- 8.4.3 PPTP Encapsulation 122
- 8.5 Advanced WAN Screen 125
- Table 46 WAN > Advanced 126
- CHAPTER 9 127
- 9.2.3 Multicast 128
- 9.2.4 Any IP 128
- Chapter 9 LAN 129
- Figure 82 Any IP Example 129
- 9.3 LAN IP Screen 130
- 9.4 LAN IP Alias 130
- 9.5 Advanced LAN Screen 131
- Chapter 9 LAN 132
- CHAPTER 10 133
- Chapter 10 DHCP 134
- 10.4 Client List Screen 135
- CHAPTER 11 137
- 11.3 General NAT Screen 138
- Table 54 NAT Application 140
- 11.4.1 Game List Example 141
- Figure 92 Game List Example 142
- 11.6 NAT Advanced Screen 143
- CHAPTER 12 147
- Chapter 12 Dynamic DNS 148
- Figure 95 Dynamic DNS 148
- Table 56 Dynamic DNS 148
- Chapter 12 Dynamic DNS 149
- PART III 151
- CHAPTER 13 153
- 13.2 Triangle Routes 154
- Chapter 13 Firewall 155
- 13.4 Services Screen 156
- Chapter 13 Firewall 158
- CHAPTER 14 161
- Chapter 14 Content Filtering 162
- 14.5 Schedule 163
- CHAPTER 15 165
- Chapter 15 IPSec VPN 166
- 15.2 The General Screen 167
- Chapter 15 IPSec VPN 169
- 15.3 The SA Monitor Screen 183
- IKE SA Proposal 185
- Authentication 186
- Negotiation Mode 187
- VPN, NAT, and NAT Traversal 187
- IPSec Protocol 188
- Encapsulation 188
- Additional IPSec VPN Topics 190
- Management 193
- CHAPTER 16 195
- CHAPTER 17 199
- Advanced screen 203
- CHAPTER 18 209
- 18.2 WWW Screen 210
- 18.3 Telnet 211
- 18.4 Telnet Screen 211
- 18.5 FTP Screen 212
- 18.6 DNS Screen 212
- Chapter 18 Remote Management 213
- Chapter 18 Remote Management 214
- CHAPTER 19 215
- 19.2 UPnP and ZyXEL 216
- 19.3 UPnP Screen 216
- Figure 140 System Tray Icon 223
- Network 224
- Maintenance and 227
- Troubleshooting 227
- CHAPTER 20 229
- 20.3 Time Setting Screen 230
- Chapter 20 System 231
- Chapter 20 System 232
- CHAPTER 21 233
- 21.2 Log Settings 234
- Chapter 21 Logs 235
- Chapter 21 Logs 236
- 21.3 Log Descriptions 237
- Table 89 System Error Logs 238
- Table 91 TCP Reset Logs 238
- Table 92 Packet Filter Logs 239
- Table 93 ICMP Logs 239
- Table 98 Attack Logs 241
- Table 99 IPSec Logs 242
- Table 100 IKE Logs 242
- Table 101 PKI Logs 245
- Table 102 802.1X Logs 246
- Table 103 ACL Setting Notes 247
- Table 104 ICMP Notes 247
- Table 105 Syslog Logs 248
- CHAPTER 22 251
- 22.2 Configuration Screen 252
- 22.2.1 Backup Configuration 253
- 22.2.2 Restore Configuration 253
- 22.3 Restart Screen 254
- 22.4 Wake On LAN 255
- Chapter 22 Tools 256
- CHAPTER 23 257
- Chapter 23 Configuration Mode 258
- CHAPTER 24 259
- Internet 260
- Chapter 24 Sys Op Mode 262
- CHAPTER 25 263
- Chapter 25 Language 264
- CHAPTER 26 265
- V I forgot the password 266
- FTP to upload new firmware 267
- 26.3 Internet Access 268
- AP or router) 269
- 26.6 Advanced Features 270
- Appendices and 271
- APPENDIX A 273
- Table 114 Firmware Features 274
- Wall-mounting Instructions 276
- APPENDIX B 279
- JavaScripts 282
- Java Permissions 283
- JAVA (Sun) 284
- APPENDIX C 285
- Subnet Masks 286
- Notation 287
- Subnetting 288
- Example: Four Subnets 289
- Example: Eight Subnets 290
- Subnet Planning 291
- Configuring IP Addresses 292
- APPENDIX D 293
- Installing Components 294
- Configuring 295
- Windows 2000/NT/XP 296
- Macintosh OS 8/9 301
- Macintosh OS X 303
- Verifying Settings 304
- Using Configuration Files 307
- 26.6.1 Verifying Settings 308
- APPENDIX E 309
- Appendix E Wireless LANs 310
- Appendix E Wireless LANs 311
- Fragmentation Threshold 312
- Preamble Type 313
- IEEE 802.1x 313
- Types of RADIUS Messages 314
- Types of Authentication 315
- PEAP (Protected EAP) 316
- Dynamic WEP Key Exchange 316
- Encryption 317
- Security Parameters Summary 319
- APPENDIX F 321
- Appendix F Services 322
- Appendix F Services 323
- APPENDIX G 325
- ZyXEL Limited Warranty 327
- Appendix G Legal Information 328
- APPENDIX H 329
- Appendix H Customer Support 330
- Appendix H Customer Support 331
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