User Manual
Table Of Contents
- 8-Port or 16-Port Gigabit Smart Managed Pro Switch with PoE+ and 2 SFP Ports
- Contents
- 1 Get Started
- Available publications
- Switch management and discovery overview
- Change the default IP address of the switch
- Discover or change the switch IP address
- About the user interfaces
- Access the local browser interface
- Change the language of the local browser interface
- Use the Device View of the local browser interface
- Interface naming conventions
- Configure interface settings
- Context–sensitive help and access to the support website
- Access the user manual online
- Register your product
- 2 Configure System Information
- View or define system information
- Configure the IP network settings for management access
- Configure the time settings
- Configure denial of service settings
- Configure the DNS settings
- Configure green Ethernet settings
- Use the Device View
- Configure Power over Ethernet
- Configure SNMP
- Configure LLDP
- Configure a DHCP L2 relay, DHCP snooping, and dynamic ARP inspection
- Set up PoE timer schedules
- 3 Configure Switching
- Configure the port settings
- Configure link aggregation groups
- Configure VLANs
- Configure a voice VLAN
- Configure Auto-VoIP
- Configure Spanning Tree Protocol
- Configure multicast
- Manage IGMP snooping
- Configure IGMP snooping
- Configure IGMP snooping for interfaces
- View, search, or clear the IGMP snooping table
- Configure IGMP snooping for VLANs
- Modify IGMP snooping settings for a VLAN
- Disable IGMP snooping on a VLAN and remove it from the table
- Configure one or more IGMP multicast router interfaces
- Configure an IGMP multicast router VLAN
- IGMP snooping querier overview
- Configure an IGMP snooping querier
- Configure an IGMP snooping querier for a VLAN
- Display the status of the IGMP snooping querier for VLANs
- Manage MLD snooping
- Enable MLD snooping
- Configure MLD snooping for interfaces
- Configure the MLD VLAN settings
- Modify the MLD snooping settings for a VLAN
- Remove MLD snooping from a VLAN
- Configure one or more MLD multicast router interfaces
- Configure an MLD multicast router VLAN
- Configure an MLD snooping querier
- Configure the MLD snooping querier VLAN settings
- Configure multicast VLAN registration
- View, search, and manage the MAC address table
- Configure Layer 2 loop protection
- 4 Configure Routing
- 5 Configure Quality of Service
- 6 Manage Device Security
- Change the device password for the local browser interface
- Manage the RADIUS settings
- Configure the TACACS+ settings
- Configure authentication lists
- Manage the Smart Control Center Utility
- Configure management access
- Control access with profiles and rules
- Configure port authentication
- Set up traffic control
- Configure access control lists
- Use the ACL Wizard to create a simple ACL
- Configure a MAC ACL
- Configure MAC ACL rules
- Configure MAC bindings
- View or delete MAC ACL bindings in the MAC binding table
- Configure a basic or extended IPv4 ACL
- Configure rules for a basic IPv4 ACL
- Configure rules for an extended IPv4 ACL
- Configure an IPv6 ACL
- Configure rules for an IPv6 ACL
- Configure IP ACL interface bindings
- View or delete IP ACL bindings in the IP ACL binding table
- Configure VLAN ACL bindings
- 7 Monitor the Switch and the Traffic
- 8 Maintain or Troubleshoot the Switch
- A Configuration Examples
- B Specifications and Default Settings
8-Port or 16-Port Gigabit Smart Managed Pro Switch Model GS418TPP, GS510TLP, and GS510TPP
Configure System Information User Manual108
6. Click the Update button to refresh the page with the latest information about the switch.
7. Click the Clear button to reset the statistics.
Configure DHCP snooping
DHCP snooping is a useful feature that provides security by filtering untrusted DHCP
messages and by building and maintaining a DHCP snooping binding table. An untrusted
message is a message that is received from outside the network or firewall and that can
cause traffic attacks within your network. The DHCP snooping binding table contains the
MAC address, IP address, lease time, binding type, VLAN number, and interface information
that corresponds to the local untrusted interfaces of a switch. An untrusted interface is an
interface that is configured to receive messages from outside the network or firewall. A
trusted interface is an interface that is configured to receive only messages from within the
network.
DHCP snooping acts like a firewall between untrusted hosts and DHCP servers. It also
provides way to dif
ferentiate between untrusted interfaces connected to the end user and
trusted interfaces connected to the DHCP server or another switch.
Configure the global DHCP snooping settings
You can view and configure the global settings for DHCP snooping.
To configure the global DHCP snooping settings:
1. Connect your computer to the same network as the switch.
You can use a WiFi or wired connection to connect your computer to the network, or
connect directly to a switch that is off-network using an Ethernet cable.
2. Launch a web browser.
3. In the address field of your web browser, enter the IP address of the switch.
If you do not know the IP address of the switch, see
Change the default IP address of the
switch on page 13.
The login window opens.
4. Enter the switch’s password in the Password
field.
The default password is password.
The System Information page displays.
5. Select System> Services > DHCP Snooping > Global Configuration.
Trusted Server Messages
Without Opt82
The number of DHCP message without option82 received from a trusted server.
Trusted Client Messages
Without Opt82
The number of DHCP message without option82 received from a trusted client.
Field Description