ZyXEL Communications GS-3012F/3012 - DHCP Snooping; Figure 101 DHCP Snooping

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Chapter 23 IP Source Guard

GS-3012/GS-3012F User’s Guide

189

23.4 DHCP Snooping

Use this screen to look at various statistics about the DHCP snooping database. To open this

screen, click Advanced Application > IP Source Guard > DHCP Snooping.

Figure 101 DHCP Snooping

Main Page

Default Chapter3
- About this User's Guide3
- Document Conventions4
- Safety Warnings6
- Table of Contents9
- Contents Overview9
- Table of Contents11
- List of Figures21
- List of Tables25
- Introduction and Hardware29
- Part I: Introduction and Hardware29
Chapter 1 Getting to Know Your Switch31
- Introduction31
- Ways to Manage the Switch34
- Good Habits for Managing the Switch34
- Figure 4 Shared Server Using VLAN Example34
- Basic Configuration35
- Part II: Basic Configuration35
Chapter 2 Hardware Installation and Connection37
- Installation Scenarios37
- Desktop Installation Procedure37
- Mounting the Switch on a Rack38
- Hardware Overview41
Chapter 3 Hardware Overview41
- Front Panel41
- Rear Panel45
- Leds46
- Table 2 LED Descriptions46
- Configuring the Switch47
Chapter 4 The Web Configurator49
- Introduction49
- System Login49
- The Status Screen50
- Saving Your Configuration55
- Switch Lockout55
- Figure 21 Change Administrator Login Password55
- Resetting the Switch56
  - Reload the Configuration File56
- Logging out of the Web Configurator57
- Help57
- Figure 22 Resetting the Switch: Via the Console Port57
- Figure 23 Web Configurator: Logout Screen57
Chapter 5 Initial Setup Example59
- Overview59
- Configuring Switch Management IP Address61
- Figure 25 Initial Setup Network Example: Port VID61
- Figure 26 Initial Setup Example: Management IP Address61
Chapter 6 System Status and Port Statistics63
- Overview63
- Port Status Summary63
- Basic Setting69
Chapter 7 Basic Setting69
- Overview69
- System Information69
- Figure 29 Basic Setting > System Info70
- Table 8 Basic Setting > System Info70
- General Setup71
- Figure 30 Basic Setting > General Setup71
- Table 9 Basic Setting > General Setup72
- Introduction to Vlans73
- Switch Setup Screen73
- Figure 31 Basic Setting > Switch Setup74
- Table 10 Basic Setting > Switch Setup74
- IP Setup75
- Port Setup78
- Figure 33 Basic Setting > Port Setup78
- Table 12 Basic Setting > Port Setup78
- Advanced81
- Part III: Advanced81
  - Vlan83
Chapter 8 VLAN83
- Introduction to IEEE 802.1Q Tagged Vlans83
  - Forwarding Tagged and Untagged Frames83
- Automatic VLAN Registration84
- Port VLAN Trunking85
- Select the VLAN Type85
- Static VLAN85
- Subnet Based Vlans90
- Figure 40 Subnet Based VLAN Application Example90
- Configuring Subnet Based VLAN91
- Figure 41 Advanced Application > VLAN > VLAN Port Setting > Subnet Based VLAN91
- Table 18 Advanced Application > VLAN > VLAN Port Setting > Subnet Based VLAN Setup91
- Port-Based VLAN Setup92
Chapter 9 Static MAC Forward Setup95
- Overview95
- Configuring Static MAC Forwarding95
- Figure 44 Advanced Application > Static MAC Forwarding95
- Table 20 Advanced Application > Static MAC Forwarding96
- Filtering97
Chapter 10 Filtering97
- Configure a Filtering Rule97
- Figure 45 Advanced Application > Filtering97
- Table 21 Advanced Application > Filtering97
- Spanning Tree Protocol99
Chapter 11 Spanning Tree Protocol99
- STP/RSTP Overview99
  - STP Terminology99
  - How STP Works100
  - Table 22 STP Path Costs100
  - STP Port States101
  - Multiple RSTP101
  - Figure 46 MRSTP Network Example101
  - Table 23 STP Port States101
  - Multiple STP102
  - Figure 47 STP/RSTP Network Example102
  - Figure 48 MSTP Network Example103
- Spanning Tree Protocol Status Screen104
- Figure 49 Mstis in Different Regions104
- Figure 50 MSTP and Legacy RSTP Network Example104
- Spanning Tree Configuration105
- Figure 51 Advanced Application > Spanning Tree Protocol105
- Figure 52 Advanced Application > Spanning Tree Protocol > Configuration105
- Table 24 Advanced Application > Spanning Tree Protocol > Configuration105
- Configure Rapid Spanning Tree Protocol106
- Figure 53 Advanced Application > Spanning Tree Protocol > RSTP106
- Table 25 Advanced Application > Spanning Tree Protocol > RSTP106
- Rapid Spanning Tree Protocol Status107
- Figure 54 Advanced Application > Spanning Tree Protocol > Status: RSTP108
- Table 26 Advanced Application > Spanning Tree Protocol > Status: RSTP108
- Configure Multiple Rapid Spanning Tree Protocol109
- Figure 55 Advanced Application > Spanning Tree Protocol > MRSTP109
- Table 27 Advanced Application > Spanning Tree Protocol > MRSTP109
- Multiple Rapid Spanning Tree Protocol Status110
- Configure Multiple Spanning Tree Protocol111
- Figure 56 Advanced Application > Spanning Tree Protocol > Status: MRSTP111
- Table 28 Advanced Application > Spanning Tree Protocol > Status: MRSTP111
- Figure 57 Advanced Application > Spanning Tree Protocol > MSTP112
- Table 29 Advanced Application > Spanning Tree Protocol > MSTP113
- Multiple Spanning Tree Protocol Status114
- Figure 58 Advanced Application > Spanning Tree Protocol > Status: MSTP115
- Table 30 Advanced Application > Spanning Tree Protocol > Status: MSTP115
- Bandwidth Control117
Chapter 12 Bandwidth Control117
- Bandwidth Control Overview117
  - CIR and PIR117
- Bandwidth Control Setup117
- Figure 59 Advanced Application > Bandwidth Control118
- Table 31 Advanced Application > Bandwidth Control118
Chapter 13 Broadcast Storm Control119
- Broadcast Storm Control Setup119
- Figure 60 Advanced Application > Broadcast Storm Control119
- Table 32 Advanced Application > Broadcast Storm Control120
- Mirroring121
Chapter 14 Mirroring121
- Port Mirroring Setup121
- Figure 61 Advanced Application > Mirroring121
- Table 33 Advanced Application > Mirroring122
- Link Aggregation123
Chapter 15 Link Aggregation123
- Link Aggregation Overview123
- Dynamic Link Aggregation123
  - Link Aggregation ID124
- Link Aggregation Status124
- Figure 62 Advanced Application > Link Aggregation Status124
- Table 34 Link Aggregation ID: Local Switch124
- Table 35 Link Aggregation ID: Peer Switch124
- Table 36 Advanced Application > Link Aggregation Status124
- Link Aggregation Setting125
- Figure 63 Advanced Application > Link Aggregation > Link Aggregation Setting125
- Link Aggregation Control Protocol126
- Table 37 Advanced Application > Link Aggregation > Link Aggregation Setting126
- Figure 64 Advanced Application > Link Aggregation > Link Aggregation Setting > LACP127
- Table 38 Advanced Application > Link Aggregation > Link Aggregation Setting > LACP127
- Static Trunking Example128
- Figure 65 Trunking Example - Physical Connections128
- Figure 66 Trunking Example - Configuration Screen129
- Port Authentication131
Chapter 16 Port Authentication131
- Port Authentication Overview131
- Port Authentication Configuration133
- Port Security137
Chapter 17 Port Security137
- About Port Security137
- Port Security Setup137
- Figure 72 Advanced Application > Port Security138
- Table 41 Advanced Application > Port Security138
- Classifier141
Chapter 18 Classifier141
- About the Classifier and Qos141
- Configuring the Classifier141
- Figure 73 Advanced Application > Classifier142
- Table 42 Advanced Application > Classifier142
- Viewing and Editing Classifier Configuration144
- Figure 74 Advanced Application > Classifier: Summary Table144
- Table 43 Classifier: Summary Table144
- Table 44 Common Ethernet Types and Protocol Numbers144
- Classifier Example145
- Table 45 Common IP Protocol Types and Protocol Numbers145
- Table 46 Common TCP and UDP Port Numbers145
- Figure 75 Classifier: Example146
- Policy Rule147
Chapter 19 Policy Rule147
- Policy Rules Overview147
  - Diffserv147
  - DSCP and Per-Hop Behavior147
- Configuring Policy Rules148
- Figure 76 Advanced Application > Policy Rule148
- Table 47 Advanced Application > Policy Rule149
- Viewing and Editing Policy Configuration150
- Figure 77 Advanced Application > Policy Rule: Summary Table150
- Table 48 Advanced Application > Policy Rule: Summary Table150
- Policy Example151
- Figure 78 Policy Example151
- Queuing Method153
Chapter 20 Queuing Method153
- Queuing Method Overview153
  - Strictly Priority Queuing153
  - Weighted Round Robin Scheduling (WRR)153
- Configuring Queuing154
- Figure 79 Advanced Application > Queuing Method154
- Table 49 Advanced Application > Queuing Method154
- Multicast155
Chapter 21 Multicast155
- Multicast Overview155
- Multicast Status156
- Multicast Setting156
- Figure 80 Advanced Application > Multicast156
- Table 50 Advanced Application > Multicast Status156
- Figure 81 Advanced Application > Multicast > Multicast Setting157
- Table 51 Advanced Application > Multicast > Multicast Setting157
- IGMP Snooping VLAN158
- Figure 82 Advanced Application > Multicast > Multicast Setting > IGMP Snooping VLAN159
- Table 52 Advanced Application > Multicast > Multicast Setting > IGMP Snooping VLAN159
- IGMP Filtering Profile160
- Figure 83 Advanced Application > Multicast > Multicast Setting > IGMP Filtering Profile160
- Table 53 Advanced Application > Multicast > Multicast Setting > IGMP Filtering Profile160
- MVR Overview161
- General MVR Configuration162
- Figure 85 MVR Multicast Television Example162
- Figure 86 Advanced Application > Multicast > Multicast Setting > MVR163
- Table 54 Advanced Application > Multicast > Multicast Setting > MVR163
- MVR Group Configuration164
Chapter 22 Authentication & Accounting169
- Authentication, Authorization and Accounting169
- Authentication and Accounting Screens170
- Supported RADIUS Attributes178
- IP Source Guard183
Chapter 23 IP Source Guard183
- IP Source Guard Overview183
- IP Source Guard187
- IP Source Guard Static Binding187
- Figure 99 IP Source Guard187
- Table 65 IP Source Guard187
- Figure 100 IP Source Guard Static Binding188
- Table 66 IP Source Guard Static Binding188
- DHCP Snooping189
- Figure 101 DHCP Snooping189
- Table 67 DHCP Snooping190
- DHCP Snooping Configure192
- ARP Inspection Status196
- ARP Inspection Configure199
- Loop Guard203
Chapter 24 Loop Guard203
- Loop Guard Overview203
- Figure 111 Loop Guard Vs STP203
- Figure 112 Switch in Loop State204
- Figure 113 Loop Guard - Probe Packet204
- Figure 114 Loop Guard - Network Loop204
- Loop Guard Setup205
- Figure 115 Advanced Application > Loop Guard205
- Table 77 Advanced Application > Loop Guard205
Chapter 25 Two Rate Three Color Marker207
- Diffserv Overview207
- Two Rate Three Color Marker Traffic Policing208
- IP Application213
- Part IV: IP Application213
  - Static Route215
Chapter 26 Static Route215
- Static Routing Overview215
- Configuring Static Routing215
- Figure 121 Static Routing Overview215
- Figure 122 IP Application > Static Routing216
- Table 79 IP Application > Static Routing216
- Dhcp219
Chapter 27 DHCP219
- DHCP Overview219
  - DHCP Modes219
  - DHCP Configuration Options219
- DHCP Status219
- DHCP Relay220
- Configuring DHCP VLAN Settings222
- Management225
- Part V: Management225
  - Maintenance227
Chapter 28 Maintenance227
- The Maintenance Screen227
- Figure 130 Management > Maintenance227
- Table 84 Management > Maintenance227
- Load Factory Default228
- Save Configuration228
- Figure 131 Load Factory Default: Start228
- Reboot System229
- Firmware Upgrade229
- Figure 132 Reboot System: Confirmation229
- Figure 133 Management > Maintenance > Firmware Upgrade229
- Restore a Configuration File230
- Backup a Configuration File230
- Figure 134 Management > Maintenance > Restore Configuration230
- Figure 135 Management > Maintenance > Backup Configuration230
- FTP Command Line231
- Access Control233
Chapter 29 Access Control233
- Access Control Overview233
- The Access Control Main Screen233
- Figure 136 Management > Access Control233
- Table 86 Access Control Overview233
- About SNMP234
  - Figure 137 SNMP Management Model234
  - Table 87 SNMP Commands234
  - SNMP Traps235
  - SNMP V3 and Security235
  - Supported Mibs235
  - Table 88 SNMP System Traps235
  - Table 89 SNMP Interfacetraps237
  - Table 90 AAA Traps237
  - Table 91 SNMP IP Traps238
  - Configuring SNMP239
  - Table 92 SNMP Switch Traps239
  - Figure 138 Management > Access Control > SNMP240
  - Table 93 Management > Access Control > SNMP240
  - Configuring SNMP Trap Group241
  - Figure 139 Management > Access Control > SNMP > Trap Group242
  - Setting up Login Accounts242
  - Table 94 Management > Access Control > SNMP > Trap Group242
  - Figure 140 Management > Access Control > Logins243
  - Table 95 Management > Access Control > Logins243
- SSH Overview244
- How SSH Works244
- Figure 141 SSH Communication Example244
- Figure 142 How SSH Works244
- SSH Implementation on the Switch245
  - Requirements for Using SSH245
- Introduction to HTTPS245
- HTTPS Example246
  - Internet Explorer Warning Messages246
  - Figure 143 HTTPS Implementation246
  - Figure 144 Security Alert Dialog Box (Internet Explorer)246
  - Netscape Navigator Warning Messages247
  - The Main Screen247
  - Figure 145 Security Certificate 1 (Netscape)247
  - Figure 146 Security Certificate 2 (Netscape)247
- Service Port Access Control248
- Figure 147 Example: Lock Denoting a Secure Connection248
- Figure 148 Management > Access Control > Service Access Control248
- Remote Management249
- Figure 149 Management > Access Control > Remote Management249
- Table 96 Management > Access Control > Service Access Control249
- Table 97 Management > Access Control > Remote Management249
- Diagnostic251
Chapter 30 Diagnostic251
- Figure 150 Management > Diagnostic251
- Table 98 Management > Diagnostic251
- Syslog253
Chapter 31 Syslog253
- Syslog Overview253
- Syslog Setup253
- Table 99 Syslog Severity Levels253
- Syslog Server Setup254
- Figure 151 Management > Syslog254
- Table 100 Management > Syslog254
- Figure 152 Management > Syslog > Syslog Server Setup255
- Table 101 Management > Syslog > Syslog Server Setup255
- Cluster Management257
Chapter 32 Cluster Management257
- Cluster Management Status Overview257
- Table 102 Zyxel Clustering Management Specifications257
- Cluster Management Status258
- Clustering Management Configuration260
- Figure 156 Example: Uploading Firmware to a Cluster Member Switch260
- Table 104 FTP Upload to Cluster Member Example260
- Figure 157 Management > Cluster Management > Configuration261
- Table 105 Management > Cluster Management > Configuration261
- MAC Table263
Chapter 33 MAC Table263
- MAC Table Overview263
- Figure 158 MAC Table Flowchart263
- Viewing the MAC Table264
- Figure 159 Management > MAC Table264
- Table 106 Management > MAC Table264
- ARP Table265
Chapter 34 ARP Table265
- ARP Table Overview265
  - How ARP Works265
- Viewing the ARP Table265
- Figure 160 Management > ARP Table266
- Table 107 Management > ARP Table266
- Configure Clone267
Chapter 35 Configure Clone267
- Figure 161 Management > Configure Clone267
- Table 108 Management > Configure Clone268
- Troubleshooting & Product Specifications269
- Part VI: Troubleshooting & Product Specifications269
Chapter 36 Troubleshooting271
- Power, Hardware Connections, and Leds271
- Switch Access and Login272
Chapter 37275
- Product Specifications275
- Table 109 Hardware Specifications275
- Table 110 Firmware Specifications276
- Table 111 Feature Specifications278
- Table 112 Standards Supported278
- Appendices and Index281
- Part VII: Appendices and Index281
Appendix A IP Addresses and Subnetting283
- Introduction to Ip Addresses283
- Figure 162 Network Number and Host ID284
- Table 113 IP Address Network Number and Host ID Example284
- Table 114 Subnet Masks285
- Table 115 Maximum Host Numbers285
- Table 116 Alternative Subnet Mask Notation285
- Figure 163 Subnetting Example: before Subnetting286
- Figure 164 Subnetting Example: after Subnetting287
- Table 117 Subnet 1287
- Table 118 Subnet 2288
- Table 119 Subnet 3288
- Table 120 Subnet 4288
- Table 121 Eight Subnets288
- Table 122 24-Bit Network Number Subnet Planning289
- Table 123 16-Bit Network Number Subnet Planning289
- Configuring Ip Addresses290
- Figure 165 Conflicting Computer IP Addresses Example291
- Figure 166 Conflicting Computer IP Addresses Example291
- Figure 167 Conflicting Computer and Router IP Addresses Example292
Appendix B Common Services293
- Table 124 Commonly Used Services293
Appendix C Legal Information297
Appendix D Customer Support301
- Index307

ZyXEL Communications GS-3012F/3012 - DHCP Snooping; Figure 101 DHCP Snooping

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