ZyXEL Communications GS1920-24HPv2

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Chapter 63 DHCP Snooping

GS1920v2 Series User’s Guide

402

3 Configure trusted and untrusted ports, and specify the maximum number of DHCP packets that each

port can receive per second.

4 Configure static bindings.

Main Page

default chapter3
- Document Conventions3
- Contents Overview4
- Table of Contents4
- Table of Contents6
- Part I: User's Guide22
- User's Guide22
- Getting to Know Your Switch23
- Introduction23
- Management Modes24
- Mode Changing24
- ZON Utility26
- Poe27
- Backbone Example Application28
- Example Applications28
- Poe Example Application28
- Bridging or Fiber Optic Uplink Example Application29
- High Performance Switching Example30
- IEEE 802.1Q VLAN Application Examples30
- Good Habits for Managing the Switch31
- Ways to Manage the Switch31
- Freestanding Installation Procedure33
- Hardware Installation and Connection33
- Installation Scenarios33
- Safety Precautions33
- Desk Mounting (GS1920-8Hpv2 Only)34
- Installation Requirements34
- Precautions34
- Attaching the Mounting Brackets to the Switch35
- Mounting the Switch under a Table35
- Installation Requirements36
- Wall Mounting (GS1920-8Hpv2 Only)36
- Attaching the Mounting Brackets to the Switch38
- Installation Requirements38
- Mounting the Switch on a Rack38
- Precautions38
Chapter 3 Hardware Panels40
- Front Panel Connections40
- Gigabit Ethernet Ports40
- Hardware Panels40
- Poe (GS1920-8Hpv2, GS1920-24Hpv2, and GS1920-48Hpv2)41
- SFP Slots41
- Grounding44
- Rear Panel44
- AC Power Connection46
- Power Connection46
- Leds47
- Part II: Technical Reference50
- Technical Reference50
Chapter 4 Web Configurator51
- Overview51
- System Login51
- Web Configurator51
- Requirements54
- Zyxel One Network (ZON) Utility54
- Run the ZON Utility55
- Web Configurator Layout58
- Tables and Lists64
- Change Your Password65
- Save Your Configuration66
- Switch Lockout66
- Help67
- Log out of the Web Configurator67
- Reboot the Switch67
- Reset the Switch67
- Restore Button67
- Restore Custom Default67
- Create a VLAN69
- Initial Setup Example69
- Overview69
- Set Port VID70
- Configure Switch Management IP Address71
Chapter 6 Tutorials73
- How to Use Dhcpv4 Snooping on the Switch73
- Overview73
- Tutorials73
- Create a VLAN77
- DHCP Relay Tutorial Introduction77
- How to Use Dhcpv4 Relay on the Switch77
- Configure Dhcpv4 Relay80
- Troubleshooting80
Chapter 7 DASHBOARD81
- Dashboard81
- New User Interface81
- Port Status84
- Quick Links to Use85
Chapter 8 MONITOR86
- Monitor86
- ARP Table87
- ARP Table Overview87
Chapter 9 ARP Table87
- Viewing the ARP Table87
- What You Can Do87
- What You Need to Know87
Chapter 10 Ipv6 Neighbor Table89
- Ipv6 Neighbor Table89
- Ipv6 Neighbor Table Overview89
- Viewing the Ipv6 Neighbor Table89
Chapter 11 MAC Table91
- MAC Table91
- MAC Table Overview91
- What You Can Do91
- What You Need to Know91
- Viewing the MAC Table92
Chapter 12 Neighbor94
- Neighbor94
- Neighbor Overview94
- What You Can Do94
- Neighbor Details95
Chapter 13 Path MTU Table98
- Path MTU Overview98
- Path MTU Table98
- Viewing the Path MTU Table98
Chapter 14 Port Status99
- Port Status99
- What You Can Do99
- Port Details100
- DDMI103
- DDMI Details103
- Port Utilization105
Chapter 15 System Information106
- System Information106
- What You Can Do106
Chapter 16 System Log109
- System Log109
- System Log Overview109
Chapter 17 SYSTEM110
- System110
Chapter 18 Cloud Management111
- Cloud Management111
- Cloud Management Overview111
- Nebula Center Control Discovery111
Chapter 19 General Setup114
- General Setup114
Chapter 20 Interface Setup117
- Interface Setup117
- Interface Setup Overview117
- Add/Edit Interfaces118
Chapter 21 IP Setup119
- IP Interfaces119
- IP Setup119
- IP Setup Overview119
- IP Status119
- What You Can Do119
- IP Status Details120
- IP Setup122
- Add/Edit IP Interfaces123
- Network Proxy Configuration124
Chapter 22 Ipv6126
- Ipv6126
- Ipv6 Overview126
- Ipv6 Status126
- What You Can Do126
- Ipv6 Interface Status Details127
- Ipv6 Global Setup129
- Edit an Ipv6 Interface130
- Ipv6 Interface Setup130
- Edit an Ipv6 Link-Local Address131
- Ipv6 Link-Local Address Setup131
- Ipv6 Global Address Setup132
- Add/Edit an Ipv6 Global Address133
- Edit an Ipv6 Neighbor Discovery134
- Ipv6 Neighbor Discovery Setup134
- Ipv6 Neighbor Setup135
- Add/Edit Ipv6 Neighbor136
- Dhcpv6 Client Setup137
- Edit Dhcpv6 Client137
Chapter 23 Logins139
- Logins139
- Set up Login Accounts139
Chapter 24 SNMP141
- Configure SNMP141
- Snmp141
- SNMP Overview141
- What You Can Do141
- Add/Edit SNMP User143
- Configure SNMP User143
- SNMP Trap Group145
- Enable or Disable Sending of SNMP Traps on a Port146
- Technical Reference146
- About SNMP147
Chapter 25 Switch Setup150
- Introduction to Vlans150
- Switch Setup150
- Switch Setup Overview150
Chapter 26 Syslog Setup152
- Syslog Overview152
- Syslog Setup152
- What You Can Do152
- Add/Edit a Syslog Server154
Chapter 27 Time Range155
- Configuring Time Range155
- Time Range155
- Time Range Overview155
- What You Can Do155
- Add/Edit Time Range156
Chapter 28 PORT158
- Port158
Chapter 29 Green Ethernet159
- Configuring Green Ethernet159
- Green Ethernet159
- Green Ethernet Overview159
Chapter 30 Link Aggregation161
- Link Aggregation161
- Link Aggregation Overview161
- What You Can Do161
- What You Need to Know161
- Link Aggregation Status162
- Link Aggregation Setting164
- Link Aggregation Control Protocol165
- Static Trunking Example167
- Technical Reference167
- Link Layer Discovery Protocol (LLDP)169
- LLDP Overview169
- LLDP-MED Overview170
- LLDP Local Status171
- What You Can Do - LLDP171
- What You Can Do - LLDP MED171
- LLDP Local Port Status Detail173
- LLDP Remote Status176
- LLDP Remote Port Status Detail177
- LLDP Setup182
- Basic TLV Setting184
- Org-Specific TLV Setting185
- LLDP-MED Setup186
- LLDP-MED Network Policy187
- Add/Edit LLDP-MED Network Policy188
- Add/Edit LLDP-MED Location189
- LLDP-MED Location189
Chapter 32 OAM192
- Oam192
- OAM Overview192
- OAM Status192
- What You Can Do192
- OAM Details193
- OAM Setup197
- OAM Remote Loopback198
Chapter 33 Poe Setup200
- Poe Setup200
- Poe Status (for Poe Models Only)200
- Poe Setup202
- Poe Time Range Setup205
- Add/Edit Poe Time Range206
Chapter 34 Port Setup207
- Port Setup207
Chapter 35 SWITCHING209
- Switching209
- Layer 2 Protocol Tunneling210
- Layer 2 Protocol Tunneling Overview210
- What You Can Do210
- What You Need to Know210
- Configuring Layer 2 Protocol Tunneling211
Chapter 37 Loop Guard214
- Loop Guard214
- Loop Guard Overview214
- What You Can Do214
- What You Need to Know214
- Loop Guard Setup216
Chapter 38 Mirroring217
- Mirroring217
- Mirroring Overview217
- Port Mirroring Setup217
Chapter 39 Multicast219
- Multicast219
- Multicast Overview219
- What You Can Do - Ipv4 Multicast219
- What You Can Do - Ipv6 Multicast219
- What You Can Do - MVR220
- What You Need to Know220
- Ipv4 Multicast Status223
- IGMP Snooping224
- IGMP Snooping VLAN227
- Add/Edit IGMP Snooping Vlans228
- IGMP Filtering Profile228
- Add IGMP Filtering Profile229
- Add IGMP Filtering Rule230
- Ipv6 Multicast231
- MLD Snooping-Proxy231
- Add/Edit MLD Snooping-Proxy VLAN232
- MLD Snooping-Proxy VLAN232
- MLD Snooping-Proxy Port Role Setting234
- MLD Snooping-Proxy Filtering236
- MLD Snooping-Proxy Filtering Profile237
- Add MLD Snooping-Proxy Filtering Profile238
- Add MLD Snooping-Proxy Filtering Rule239
- MVR Configuration239
- Add/Edit MVR240
- MVR Group Setup242
- Add/Edit MVR Group243
- MVR Configuration Example243
- Static Multicast Forwarding246
- Static Multicast Forwarding Overview246
- What You Can Do246
- What You Need to Know246
- Static Multicast Forwarding by MAC247
- Add/Edit Static Multicast Forwarding by MAC248
Chapter 41 Pppoe249
- Pppoe249
- Pppoe Intermediate Agent Overview249
- What You Can Do249
- What You Need to Know249
- Pppoe Intermediate Agent251
- Pppoe IA Port253
- Pppoe IA Port VLAN254
- Pppoe IA VLAN256
- Differentiated Services257
- Diffserv Overview257
- What You Can Do257
- What You Need to Know257
- Activating Diffserv258
- DSCP-To-IEEE 802.1P Priority Settings259
- Configuring DSCP Settings260
Chapter 43 Queuing Method261
- Queuing Method261
- Queuing Method Overview261
- What You Can Do261
- What You Need to Know261
- Configuring Queuing262
- Assign Priority Queue264
Chapter 44 Priority Queue264
- Priority Queue264
- Priority Queue Overview264
- What You Can Do264
- Bandwidth Control266
- Bandwidth Control Overview266
- Bandwidth Control Setup266
Chapter 45 Bandwidth Control266
- What You Can Do266
- Spanning Tree Protocol268
- Spanning Tree Protocol Overview268
- What You Can Do268
- What You Need to Know268
- Spanning Tree Protocol Status271
- Spanning Tree Setup271
- Rapid Spanning Tree Protocol Status272
- Configure Rapid Spanning Tree Protocol274
- Multiple Rapid Spanning Tree Protocol276
- Configure Multiple Rapid Spanning Tree Protocol278
- Multiple Spanning Tree Protocol Status280
- Configure Multiple Spanning Tree Protocol283
- Add/Edit Multiple Spanning Tree284
- Multiple Spanning Tree Protocol Port Setup286
- MSTP Network Example287
- Technical Reference287
- Common and Internal Spanning Tree (CIST)288
- MST Instance288
- MST Region288
Chapter 47 Static MAC Filtering290
- Configure a Static MAC Filtering Rule290
- Static MAC Filtering290
- Static MAC Filtering Overview290
- What You Can Do290
- Add/Edit a Static MAC Filtering Rule291
Chapter 48 Static MAC Forwarding292
- Configure Static MAC Forwarding292
- Static MAC Forwarding292
- Static MAC Forwarding Overview292
- What You Can Do292
- Add/Edit Static MAC Forwarding Rules293
Chapter 49 VLAN295
- Vlan295
- VLAN Overview295
- What You Can Do295
- What You Need to Know295
- Introduction to IEEE 802.1Q Tagged Vlans296
- VLAN Status298
- VLAN Details299
- Configure a Static VLAN300
- Add/Edit a Static VLAN301
- VLAN Port Setup302
- Configure GVRP303
- Subnet Based VLAN304
- Configuring Subnet Based VLAN305
- Add/Edit Subnet Based VLAN306
- Protocol Based VLAN307
- Add/Edit a Protocol Based VLAN308
- Configuring Protocol Based VLAN308
- Voice VLAN309
- Add/Edit a Voice VLAN311
- MAC Based VLAN311
- Add/Edit a MAC Based VLAN312
- Vendor ID Based VLAN313
- Add/Edit a Vendor ID Based VLAN314
- Configure a Port-Based VLAN315
- Port-Based VLAN Setup315
- Create an IP-Based VLAN Example317
- Technical Reference317
Chapter 50 VLAN Isolation319
- Configuring VLAN Isolation319
- VLAN Isolation319
- VLAN Isolation Overview319
- Add/Edit a VLAN Isolation Rule320
Chapter 51 NETWORKING322
- Networking322
- ARP Overview323
- ARP Setup323
Chapter 52 ARP Setup323
- What You Can Do323
- What You Need to Know323
- ARP Learning325
Chapter 53 DHCP327
- Dhcp327
- DHCP Overview327
- What You Can Do327
- What You Need to Know327
- Dhcpv4 Relay328
- Dhcpv4 Relay Agent Information328
- Dhcpv4 Relay Status328
- Dhcpv4 Option 82 Profile329
- Add/Edit a Dhcpv4 Option 82 Profile330
- Configuring Dhcpv4 Smart Relay331
- Add/Edit Dhcpv4 Global Relay Port332
- DHCP Smart Relay Configuration Example333
- Add/Edit Dhcpv4 VLAN Setting335
- Dhcpv4 VLAN Setting335
- Add/Edit Dhcpv4 VLAN Port336
- Example: DHCP Relay for Two Vlans337
- Dhcpv6 Relay338
- Add/Edit Dhcpv6 Relay339
Chapter 54 Static Route340
- Ipv4 Static Route340
- Static Route340
- Static Routing Overview340
- What You Can Do340
- Add/Edit Ipv4 Static Route341
Chapter 55 SECURITY343
- Security343
- Aaa344
- Authentication, Authorization and Accounting (AAA)344
Chapter 56 AAA344
- What You Can Do344
- What You Need to Know344
- RADIUS Server Setup345
- TACACS+ Server Setup347
- AAA Setup349
- Technical Reference352
- Vendor Specific Attribute352
- Supported RADIUS Attributes353
- Attributes Used for Authentication354
- Access Control355
- Access Control Overview355
Chapter 57 Access Control355
- Service Access Control355
- What You Can Do355
- Remote Management356
- Account Security357
- SSH Overview359
- Technical Reference359
- Introduction to HTTPS361
- Google Chrome Warning Messages363
Chapter 58 Classifier365
- Classifier365
- Classifier Overview365
- Classifier Status365
- What You Can Do365
- What You Need to Know365
- Classifier Setup366
- Add/Edit a Classifier368
- Classifier Global Setting371
- Classifier Example372
Chapter 59 Policy Rule374
- Diffserv374
- DSCP and Per-Hop Behavior374
- Policy Rule374
- Policy Rules Overview374
- What You Can Do374
- Add/Edit a Policy Rule375
- Policy Rules375
Chapter 60 Storm Control378
- Storm Control378
- Storm Control Overview378
- Storm Control Setup378
- What You Can Do378
Chapter 61 Error-Disable380
- CPU Protection Overview380
- Error-Disable380
- Error-Disable Overview380
- Error-Disable Recovery Overview380
- What You Can Do380
- Error-Disable Status381
- CPU Protection Setup382
- Error-Disable Detect Setup383
- Error-Disable Recovery Setup384
Chapter 62 IP Source Guard386
- IP Source Guard386
- IP Source Guard Overview386
- What You Can Do387
- Ipv4 Source Guard388
- Ipv4 Source Guard Static Binding388
- Add/Edit Ipv4 Source Guard Static Binding390
Chapter 63 DHCP Snooping391
- DHCP Snooping391
- DHCP Snooping Overview391
- DHCP Snooping Status392
- What You Can Do392
- DHCP Snooping Setup395
- DHCP Snooping Port Setup396
- DHCP Snooping VLAN Setup398
- Add/Edit DHCP Snooping VLAN Ports399
- DHCP Snooping VLAN Port Setup399
- DHCP Snooping Overview400
- Technical Reference400
- ARP Inspection403
- ARP Inspection Status403
Chapter 64 ARP Inspection403
- ARP Inspection Log Status404
- ARP Inspection VLAN Status404
- ARP Inspection Setup405
- ARP Inspection Port Setup407
- ARP Inspection VLAN Setup408
- ARP Inspection Overview409
- Technical Reference409
Chapter 65 Port Authentication411
- Port Authentication411
- Port Authentication Overview411
- What You Can Do411
- MAC Authentication412
- What You Need to Know412
- Activate IEEE 802.1X Security413
- Activate MAC Authentication414
- Guest VLAN416
- IEEE 802.1X418
- Radius418
- Technical Reference418
- EAP (Extensible Authentication Protocol) Authentication419
- About Port Security421
Chapter 66 Port Security421
- Port Security421
- Port Security Overview421
- Port Security Setup421
- Certificates424
Chapter 67 MAINTENANCE424
- Maintenance424
- Overview424
- What You Can Do424
- HTTPS Certificates425
- Filename Conventions426
- FTP Command Line426
- Technical Reference426
- FTP Command Line Procedure427
- Cluster Management Overview428
- FTP Restrictions428
- GUI-Based FTP Clients428
- Cluster Management Status429
- What You Can Do429
- Clustering Management Setup430
- Cluster Member Switch Management432
- Technical Reference432
- Backup Configuration434
- Restore Configuration434
- Erase Running-Configuration435
- Configure Clone436
- Save Configuration436
- Diagnostic438
- Firmware Upgrade440
- Reboot System442
- Tech-Support443
- Tech-Support Download444
- Part III: Troubleshooting and Appendices445
- Troubleshooting and Appendices445
Chapter 68 Troubleshooting446
- Power, Hardware Connections, and Leds446
- Troubleshooting446
- Switch Access and Login447
- Poe Supply449
- Switch Configuration449
- Nebula Registration450
Appendix A Customer Support451
Appendix B Common Services456
Appendix C Ipv6459
Appendix D Legal Information467
- Index472

ZyXEL Communications GS1920-24HPv2 - Page 402

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