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Hodnocené. / 5. Na základě hodnocení zákazníků
GS-4012F/4024 User’s Guide
Chapter 30 DHCP 193
CHAPTER 30
DHCP
This chapter shows you how to configure the DHCP feature.
30.1 DHCP Overview
DHCP (Dynamic Host Configuration Protocol RFC 2131 and RFC 2132) allows individual
computers to obtain TCP/IP configuration at start-up from a server. You can configure the
switch as a DHCP server or disable it. When configured as a server, the switch provides the
TCP/IP configuration for the clients. If you disable the DHCP service, you must have another
DHCP server on your LAN, or else the computer must be manually configured.
30.1.1 DHCP modes
The switch can be configured as a DHCP server or DHCP relay agent.
• If you configure the switch as a DHCP server, it will maintain the pool of addresses and
distribute them to your LAN computers.
• If there is an Ethernet device that performs the DHCP server function for your network,
then you can configure the switch as a DHCP relay agent. When the switch receives a
request from a computer on your network, it contacts the Ethernet device (the DHCP
server) for the necessary IP information, and then relays the assigned information back to
the computer.
30.2 DHCP Server Status
Click IP Application, DHCP in the navigation panel. The DHCP Server Status screen
displays.
- GS-4012F/4024 1
- Copyright 2
- Certifications 3
- Certifications 3 4
- Safety Warnings 5
- Safety Warnings 5 6
- ZyXEL Limited Warranty 7
- Customer Support 8
- 8 Customer Support 9
- Table of Contents 10
- Chapter 43 19
- Chapter 44 19
- Chapter 45 20
- Chapter 46 20
- List of Figures 22
- List of Tables 26
- About This User's Guide 30
- Related Documentation 30
- Syntax Conventions 30
- Graphics Icons Key 31
- User Guide Feedback 31
- CHAPTER 1 32
- 1.1.2 Bridging Example 33
- CHAPTER 2 36
- 2.2.1.1 Precautions 37
- CHAPTER 3 40
- 3.1.1 Console Port 41
- 3.1.3 SFP Slots 42
- 3.2 Rear Panel 44
- 3.3 LEDs 45
- Table 2 LEDs (continued) 46
- CHAPTER 4 48
- 4.3 The Status Screen 49
- 4.5 Switch Lockout 54
- 4.6 Resetting the Switch 55
- 4.8 Help 56
- CHAPTER 5 58
- 5.1.3 Creating a VLAN 60
- 5.1.4 Setting Port VID 61
- 5.1.5 Enabling RIP 61
- CHAPTER 6 64
- Table 6 Status (continued) 65
- CHAPTER 7 70
- 70 Chapter 7 Basic Setting 71
- Figure 28 System Info 71
- Table 8 System Info 71
- 7.3 General Setup 72
- 72 Chapter 7 Basic Setting 73
- Figure 29 General Setup 73
- Table 9 General Setup 73
- 7.4 Introduction to VLANs 74
- 7.5 Switch Setup Screen 75
- 7.6 IP Setup 76
- 7.6.1 IP Interfaces 77
- Chapter 7 Basic Setting 77 78
- Table 11 IP Setup 78
- 7.7 Port Setup 79
- Chapter 7 Basic Setting 79 80
- 80 Chapter 7 Basic Setting 81
- CHAPTER 8 82
- 8.2.1 GARP 83
- 8.2.2 GVRP 83
- 8.3 Port VLAN Trunking 84
- 8.4 Select the VLAN Type 84
- 8.5 Static VLAN 85
- 8.5.2 Static VLAN Details 86
- 86 Chapter 8 VLAN 87
- Table 16 VLAN: Static VLAN 87
- Chapter 8 VLAN 87 88
- 88 Chapter 8 VLAN 89
- Chapter 8 VLAN 89 90
- 90 Chapter 8 VLAN 91
- Chapter 8 VLAN 91 92
- 92 Chapter 8 VLAN 93
- CHAPTER 9 94
- CHAPTER 10 96
- 96 Chapter 10 Filtering 97
- CHAPTER 11 98
- 11.1.2 How STP Works 99
- 11.1.3 STP Port States 99
- 11.1.4 Multiple RSTP 100
- GS-4012F/4024 User’s Guide 101
- Figure 48 MRSTP: Status 107
- CHAPTER 12 108
- Table 28 Bandwidth Control 109
- CHAPTER 13 110
- CHAPTER 14 112
- 112 Chapter 14 Mirroring 113
- Figure 51 Mirroring 113
- Table 30 Mirroring 113
- CHAPTER 15 114
- 15.2.1 Link Aggregation ID 115
- CHAPTER 16 120
- Table 35 Supported VSA 121
- CHAPTER 17 126
- 126 Chapter 17 Port Security 127
- Figure 58 Port Security 127
- Table 39 Port Security 127
- Chapter 17 Port Security 127 128
- 128 Chapter 17 Port Security 129
- CHAPTER 18 130
- 130 Chapter 18 Classifier 131
- Figure 59 Classifier 131
- Table 40 Classifier 131
- Chapter 18 Classifier 131 132
- 18.4 Classifier Example 134
- 134 Chapter 18 Classifier 135
- CHAPTER 19 136
- 129 for more information 137
- Chapter 19 Policy Rule 137 138
- Figure 62 Policy 138
- Table 44 Policy 138
- 138 Chapter 19 Policy Rule 139
- Chapter 19 Policy Rule 139 140
- 19.4 Policy Example 141
- Chapter 19 Policy Rule 141 142
- Figure 64 Policy Example 142
- 142 Chapter 19 Policy Rule 143
- CHAPTER 20 144
- 20.2 Configuring Queuing 145
- Chapter 20 Queuing Method 145 146
- 146 Chapter 20 Queuing Method 147
- CHAPTER 21 148
- 21.3 VLAN Tag Format 149
- 21.3.1 Frame Format 150
- 150 Chapter 21 VLAN Stacking 151
- Figure 67 VLAN Stacking 151
- Table 50 VLAN Stacking 151
- Chapter 21 VLAN Stacking 151 152
- 152 Chapter 21 VLAN Stacking 153
- CHAPTER 22 154
- 22.2 Multicast Status 155
- 22.3 Multicast Setting 155
- Chapter 22 Multicast 155 156
- Table 52 Multicast Setting 156
- 156 Chapter 22 Multicast 157
- 22.4 IGMP Filtering Profile 158
- 22.5 MVR Overview 159
- 22.5.3 How MVR Works 160
- 160 Chapter 22 Multicast 161
- Table 54 MVR 161
- Chapter 22 Multicast 161 162
- Table 54 MVR (continued) 162
- 162 Chapter 22 Multicast 163
- Chapter 22 Multicast 163 164
- 164 Chapter 22 Multicast 165
- CHAPTER 23 166
- 166 Chapter 23 Static Route 167
- CHAPTER 24 168
- 168 Chapter 24 RIP 169
- Figure 80 RIP 169
- Table 57 RIP 169
- CHAPTER 25 170
- 25.1.2 How OSPF Works 171
- 25.2 OSPF Status 172
- 172 Chapter 25 OSPF 173
- Figure 83 OSPF Status 173
- Table 60 OSPF Status 173
- 25.3 OSPF Configuration 174
- 174 Chapter 25 OSPF 175
- 25.4 Configure OSPF Areas 176
- 176 Chapter 25 OSPF 177
- Chapter 25 OSPF 177 178
- Figure 86 OSPF Interface 178
- Table 65 OSPF Interface 178
- 25.6 OSPF Virtual-Links 179
- Chapter 25 OSPF 179 180
- Table 66 OSPF Virtual-Link 180
- 180 Chapter 25 OSPF 181
- CHAPTER 26 182
- 182 Chapter 26 IGMP 183
- Table 67 IGMP (continued) 183
- CHAPTER 27 184
- 27.3 Configuring DVMRP 185
- Chapter 27 DVMRP 185 186
- Table 68 DVMRP 186
- 186 Chapter 27 DVMRP 187
- CHAPTER 28 188
- 188 Chapter 28 IP Multicast 189
- Table 70 IP Multicast 189
- CHAPTER 29 190
- 29.2 Activating DiffServ 191
- CHAPTER 30 194
- 194 Chapter 30 DHCP 195
- Chapter 30 DHCP 195 196
- Figure 100 DHCP: Server 196
- Table 75 DHCP: Server 196
- 30.4 DHCP Relay 197
- Chapter 30 DHCP 197 198
- Figure 103 DHCP: Relay 198
- Table 76 DHCP: Relay 198
- 198 Chapter 30 DHCP 199
- CHAPTER 31 200
- 31.2 VRRP Status 201
- 31.3 VRRP Configuration 202
- 202 Chapter 31 VRRP 203
- 31.3.2 VRRP Parameters 204
- 204 Chapter 31 VRRP 205
- Chapter 31 VRRP 205 206
- 206 Chapter 31 VRRP 207
- 31.5.2 Two Subnets Example 208
- CHAPTER 32 210
- 32.2 Load Factory Default 211
- 32.3 Save Configuration 211
- 32.4 Reboot System 212
- 32.5 Firmware Upgrade 212
- 212 Chapter 32 Maintenance 213
- 32.8 FTP Command Line 214
- 32.8.3 GUI-based FTP Clients 215
- 32.8.4 FTP Restrictions 215
- CHAPTER 33 216
- 33.3 About SNMP 217
- 33.3.1 Supported MIBs 218
- 33.3.2 SNMP Traps 218
- 33.3.3 Configuring SNMP 219
- Chapter 33 Access Control 219 220
- 33.4 SSH Overview 221
- 33.5 How SSH works 221
- Chapter 33 Access Control 221 222
- Figure 132 How SSH Works 222
- 33.7 Introduction to HTTPS 223
- 33.8 HTTPS Example 224
- 33.8.3 The Main Screen 225
- Chapter 33 Access Control 225 226
- 226 Chapter 33 Access Control 227
- Chapter 33 Access Control 227 228
- 228 Chapter 33 Access Control 229
- CHAPTER 34 230
- 230 Chapter 34 Diagnostic 231
- CHAPTER 35 232
- 35.3 Syslog Server Setup 233
- Chapter 35 Syslog 233 234
- 234 Chapter 35 Syslog 235
- CHAPTER 36 236
- CHAPTER 37 244
- 244 Chapter 37 MAC Table 245
- Figure 149 MAC Table 245
- Table 98 MAC Table 245
- CHAPTER 38 246
- 38.2 Viewing the IP Table 247
- CHAPTER 39 248
- 248 Chapter 39 ARP Table 249
- Figure 152 ARP Table 249
- Table 100 ARP Table 249
- CHAPTER 40 250
- 250 Chapter 40 Routing Table 251
- CHAPTER 41 252
- CHAPTER 42 254
- 42.3 The Login Screen 255
- 42.5 Changing the Password 256
- 42.6 Privilege Levels 256
- 42.7 Command Modes 257
- 42.8 Getting Help 258
- 42.9 Using Command History 260
- 42.11 Command Summary 261
- 42.11.2 Enable Mode 262
- Enables DiffServ. 13 270
- <diff-set 277
- 42.11.6 config-vlan Commands 289
- 42.12 mvr Commands 290
- CHAPTER 43 292
- 43.2.2 show ip 293
- 43.2.3 show logging 293
- 43.2.4 show interface 293
- 43.3 ping 295
- 43.4 traceroute 295
- 43.5 Copy Port Attributes 296
- CHAPTER 44 300
- 44.2 Configure IGMP Filter 301
- 44.3 Enabling STP 302
- 44.4 no Command Examples 304
- 44.4.4.1 no trunk 305
- 44.4.4.3 no ssh 306
- 44.5 Static Route Commands 307
- 44.6 Enabling MAC Filtering 308
- 44.7 Enabling Trunking 309
- CHAPTER 45 312
- 45.2.3 broadcast-limit 313
- 45.2.4 bandwidth-limit 313
- 45.2.5 mirror 314
- 45.2.6 gvrp 315
- 45.2.7 ingress-check 315
- 45.2.8 frame-type 316
- 45.2.9 weight 316
- 45.2.10 egress set 317
- 45.2.11 qos priority 317
- 45.2.12 name 318
- 45.2.13 speed-duplex 318
- 45.2.14 test 318
- 45.3.1 no bandwidth-limit 319
- CHAPTER 46 320
- 46.2.1 GARP Status 321
- 46.2.2 GARP Timer 321
- 46.3 Port VLAN Commands 322
- 46.3.1 Set Port VID 323
- 46.3.4 Modify Static VLAN 324
- 46.4 Enable VLAN 325
- 46.5 Disable VLAN 326
- 46.6 Show VLAN Setting 326
- CHAPTER 47 328
- CHAPTER 48 330
- CHAPTER 49 332
- Figure 156 Pop-up Blocker 333
- Figure 158 Internet Options 335
- 49.2.1.2 JavaScripts 336
- 3 Scroll down to Scripting 337
- 49.2.1.3 Java Permissions 338
- 49.2.1.3.1 JAVA (Sun) 339
- Figure 163 Java (Sun) 340
- APPENDIX A 342
- Table 114 Firmware Features 343
- APPENDIX B 348
- Subnet Masks 350
- Subnetting 350
- Example: Two Subnets 351
- Example: Four Subnets 352
- Example Eight Subnets 353
- Table 130 Eight Subnets 354
- Numerics 356
- 356 Index 357
- Index 357 358
- 358 Index 359
- Index 359 360
- 360 Index 361
- Index 361 362
- 362 Index 363
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