User's Manual
Table Of Contents
- 1. INTRODUCTION
- 2. INSTALLATION
- 3. SWITCH MANAGEMENT
- 4. WEB CONFIGURATION
- 4.1 Main Web Page
- 4.2 System
- 4.3 Port Management
- 4.4 Link Aggregation
- 4.5 VLAN
- 4.6 Spanning Tree Protocol
- 4.7 Multicast
- 4.8 Quality of Service
- 4.9 Security
- 4.10 ACL
- 4.11 MAC Address Table
- 4.12 LLDP
- 4.13 Diagnostics
- 4.14 Power over Ethernet
- 4.15 RMON
- 4.16 Maintenance
- 5. COMMAND LINE INTERFACE
- 6. Command Line Mode
- 6.1 User Mode Commands
- 6.2 Privileged Mode Commands
- 6.2.1 clear command
- 6.2.2 clock command
- 6.2.3 configure command
- 6.2.4 copy command
- 6.2.5 debug command
- 6.2.6 delete command
- 6.2.7 disable command
- 6.2.8 end command
- 6.2.9 exit command
- 6.2.10 no command
- 6.2.11 ping command
- 6.2.12 reboot command
- 6.2.13 renew command
- 6.2.14 restore-defaults command
- 6.2.15 save command
- 6.2.16 show command
- 6.2.17 ssl command
- 6.2.18 traceroute command
- 6.2.19 udld command
- 6.3 Global Config Mode Commands
- 6.3.1 aaa Command
- 6.3.2 boot Command
- 6.3.3 bridge Command
- 6.3.4 class-map Command
- 6.3.5 clock Command
- 6.3.6 dos Command
- 6.3.7 dot1x Command
- 6.3.8 do Command
- 6.3.9 enable Command
- 6.3.10 end Command
- 6.3.11 errdisable Command
- 6.3.12 exit Command
- 6.3.13 gvrp Command
- 6.3.14 hostname Command
- 6.3.15 interface Command
- 6.3.16 ip Command
- 6.3.17 ipv6 Command
- 6.3.18 jumbo-frame Command
- 6.3.19 l2 Command
- 6.3.20 lacp Command
- 6.3.21 lag Command
- 6.3.22 line Command
- 6.3.23 lldp Command
- 6.3.24 logging Command
- 6.3.25 mac Command
- 6.3.26 management-VLAN Command
- 6.3.27 mirror Command
- 6.3.28 no Command
- 6.3.29 policy-map Command
- 6.3.30 port-security Command
- 6.3.31 qos Command
- 6.3.32 radius Command
- 6.3.33 rate-limit Command
- 6.3.34 rmon Command
- 6.3.35 Snmp Command
- 6.3.36 sntp Command
- 6.3.37 spanning-tree Command
- 6.3.38 storm-control Command
- 6.3.39 system Command
- 6.3.40 tacacs Command
- 6.3.41 udld Command
- 6.3.42 username Command
- 6.3.43 vlan Command
- 6.3.44 voice-vlan Command
- 7. SWITCH OPERATION
- 8. POWER OVER ETHERNET OVERVIEW
- 9. TROUBLESHOOTING
- APPENDIX A
- EC Declaration of Conformity
User’s Manual of GS-4210-24P2S
The page includes the following fields:
Object Description
DHCP Snooping
Indicates the DHCP snooping mode operation. Default mode is Disabled and
possible modes are:
Enabled: Enable DHCP snooping mode operation.
When enable DHCP snooping mode operation, the request
DHCP messages will be forwarded to trusted ports and only
allowed reply packets from trusted ports.
Disabled: Disable DHCP snooping mode operation.
Button
: Click to apply changes.
Figure 4-9-15: DHCP Snooping Information Page Screenshot
The page includes the following fields:
Object Description
Displ
ay the current DHCP snooping status.
DHCP Snooping
4.9.3.3 VLAN Setting
Command Usage
When DHCP snooping is enabled globally on the switch, and enabled on the specified VLAN, DHCP packet filtering will be
performed on any untrusted ports within the VLAN.
When the DHCP snooping is globally disabled, DHCP snooping can still be configured for specific VLANs, but the changes
will not take effect until DHCP snooping is globally re-enabled.
When DHCP snooping is globally enabled, and DHCP snooping is then disabled on a VLAN, all dynamic bindings learned for
this VLAN are removed from the binding table.
The DHCP Snooping VLAN Setting screens in Figure 4-9-16 & Figure 4-9-17 appear.
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