GS-4210-Series (V2) User Manual
Table Of Contents
- 1. INTRODUCTION
- 2. INSTALLATION
- 3. SWITCH MANAGEMENT
- 4. WEB CONFIGURATION
- 4.1 Main Web Page
- 4.2 System
- 4.3 Switching
- 4.3.1 Port Management
- 4.3.1.1 Port Configuration
- 4.3.1.2 Port Counters
- 4.3.1.3 Bandwidth Utilization
- 4.3.1.4 Port Mirroring
- 4.3.1.5 Jumbo Frame
- 4.3.1.6 Port Error Disabled Configuration
- 4.3.1.7 Port Error Disabled Status
- 4.3.1.8 Protected Ports
- 4.3.1.9 EEE
- 4.3.2 Link Aggregation
- 4.3.2.1 LAG Setting
- 4.3.2.2 LAG Management
- 4.3.2.3 LAG Port Setting
- 4.3.2.4 LACP Setting
- 4.3.2.5 LACP Port Setting
- 4.3.2.6 LAG Status
- 4.3.3 VLAN
- 4.3.3.1 VLAN Overview
- 4.3.3.2 IEEE 802.1Q VLAN
- 4.3.3.3 Management VLAN
- 4.3.3.4 Create VLAN
- 4.3.3.5 Interface Settings
- 4.3.3.6 Port to VLAN
- 4.3.3.7 Port VLAN Membership
- 4.3.3.8 Protocol VLAN Group Setting
- 4.3.3.9 Protocol VLAN Port Setting
- 4.3.3.10 GVRP Setting
- 4.3.3.11 GVRP Port Setting
- 4.3.3.12 GVRP VLAN
- 4.3.3.13 GVRP Statistics
- 4.3.3.14 VLAN setting example:
- 4.3.3.14.1 Two separate 802.1Q VLANs
- 4.3.3.14.2 VLAN Trunking between two 802.1Q aware switches
- 4.3.4 Spanning Tree Protocol
- 4.3.5 Multicast
- 4.3.6 IGMP Snooping
- 4.3.7 MLD Snooping
- 4.3.8 LLDP
- 4.3.9 MAC Address Table
- 4.3.1 Port Management
- 4.4 Quality of Service
- 4.5 Security
- 4.6 Ring
- 4.7 Power over Ethernet
- 4.8 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 delete command
- 6.2.6 disable command
- 6.2.7 end command
- 6.2.8 exit command
- 6.2.9 ping command
- 6.2.10 reboot command
- 6.2.11 renew command
- 6.2.12 restore-defaults command
- 6.2.13 save command
- 6.2.14 show command
- 6.2.15 ssl command
- 6.2.16 terminal command
- 6.3 Global Config Mode Commands
- 6.3.1 aaa Command
- 6.3.2 boot Command
- 6.3.3 clock Command
- 6.3.4 dos Command
- 6.3.5 dot1x Command
- 6.3.6 do Command
- 6.3.7 enable Command
- 6.3.8 end Command
- 6.3.9 erps Command
- 6.3.10 errdisable Command
- 6.3.11 exit Command
- 6.3.12 gvrp Command
- 6.3.13 hostname Command
- 6.3.14 interface Command
- 6.3.15 ip Command
- 6.3.16 ipv6 Command
- 6.3.17 jumbo-frame Command
- 6.3.18 lacp Command
- 6.3.19 lag Command
- 6.3.20 line Command
- 6.3.21 lldp Command
- 6.3.22 logging Command
- 6.3.23 mac Command
- 6.3.24 management Command
- 6.3.25 management-vlan Command
- 6.3.26 mirror Command
- 6.3.27 nms Command
- 6.3.28 no Command
- 6.3.29 poe Command
- 6.3.30 port-security Command
- 6.3.31 qos Command
- 6.3.32 radius Command
- 6.3.33 rmon Command
- 6.3.34 Snmp Command
- 6.3.35 sntp Command
- 6.3.36 spanning-tree Command
- 6.3.37 storm-control Command
- 6.3.38 system Command
- 6.3.39 tacacs Command
- 6.3.40 username Command
- 6.3.41 vlan Command
- 6.3.42 voice-vlan Command
- 7. SWITCH OPERATION
- 8. POWER OVER ETHERNET OVERVIEW
- 9. TROUBLESHOOTING
- APPENDIX A
User’s Manual of GS-4210 Series
289
The page includes the following fields:
Object Description
• VLAN List
Display the current VLAN list.
• Status
Display the current DHCP snooping status.
4.5.5.4 Port Setting
Configures switch ports as trusted or untrusted.
Command Usage
• A trusted interface is an interface that is configured to receive only messages from within the network. An untrusted interface
is an interface that is configured to receive messages from outside the network or firewall.
• When DHCP snooping enabled both globally and on a VLAN, DHCP packet filtering will be performed on any untrusted ports
within the VLAN.
• When an untrusted port is changed to a trusted port, all the dynamic DHCP snooping bindings associated with this port are
removed.
• Set all ports connected to DHCP servers within the local network or firewall to trusted state. Set all other ports outside the
local network or firewall to untrusted state.
The DHCP Snooping Port Setting screen in Figure 4-5-38 & Figure 4-5-39 appears.
Figure 4-5-38: DHCP Snooping Port Setting Page Screenshot
The page includes the following fields:
Object Description
• Port
Select port for this drop down list.
• Type
Indicates the DHCP snooping port mode. Possible port modes are:
Trusted: Configures the port as trusted sources of the DHCP message.
Untrusted: Configures the port as untrusted sources of the DHCP
message.
• Chaddr Check
Indicates that the Chaddr check function is enabled on selected port.
Chaddr: Client hardware address.
Buttons
: Click to apply changes.