Black Box LGB5052A, LGB5028A user manual Dynamic Table, Dhcp Snooping

Models: LGB5028A LGB5052A 24 + or 48 + 4-Port Gigabit Managed Switch with SFP+ 10G

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Chapter 7: Security

7.2.3 Dynamic Table

The section describes how to configure the switch’s dynamic ARP inspection table parameters. The dynamic ARP inspection table contains up to 1024 entries, and is sorted first by port, then by VLAN ID, then by MAC address, and then by IP address.

Web Interface

To configure a dynamic ARP inspection table configuration in the Web interface:

1.Specify the “Start from port,” “VLAN ID,” “MAC Address,” and “IP Address” entries per page.

2.Check the box next to “Auto-refresh.”

Figure 7-6. The Dynamic ARP Inspection Table.

Parameter Description

Port: Switch port number for which the entries are displayed.

VLAN ID: VLAN-ID in which the ARP traffic is permitted.

MAC Address: User MAC address of the entry.

IP Address: User IP address of the entry.

Auto-refresh: Click on this button to refresh the information automatically.

Upper right icon (Refresh, <<, >> ): Click on the “Refresh” button to refresh the dynamic ARP inspection table manually. Click on the other buttons to go to the previous/next page or entries.

7.3 DHCP Snooping

The section describes how to configure the switch’s DHCP snooping parameters. DHCP snooping can prevent attackers from adding their own DHCP servers to the network.

7.3.1 Configuration

This section describes how to configure DHCP snooping setting including:

Snooping Mode (enabled and disabled)

Port Mode Configuration (trusted, untrusted)

Web Interface

To configure DHCP snooping in the Web interface:

1.Select “Enabled” in the DHCP snooping configuration mode.

2.Select “Trusted” for the specific port in the port configuration mode.

3.Click “Save.”

LGB5028A User‘s Manual

724-746-5500 blackbox.com

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Page 177
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Black Box LGB5052A, LGB5028A, 24 + or 48 + 4-Port Gigabit Managed Switch with SFP+ 10G Dynamic Table, Dhcp Snooping