Black Box LGB2124A, LGB2118A, Gigabit Smart Switch Eco Fanless manual Port Configuration

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Chapter 5: Operation of Web-based Management

DHCP Server: Shows the IP address of the DHCP server. The default is 0.0.0.0.

Lease Time Left: Shows the lease time left for the DHCP client.

Device Name: Set a special name for this switch. Up to 16 characters are allowed in this parameter. Any alphanumeric characters and the null character are acceptable.

Default: Giga Switch

DHCP Enabled: Enable DHCP snooping, Just tick the check box to enable it. The default is disable.

Fallback IP Address: Users can configure the IP settings and fill in new values. Then, click on the “Apply” button to update. The default is 192.168.1.1.

Fallback Subnet Mask: Subnet mask is used to create more network addresses, because any IP device in a network must own its IP address, which is composed of a network address and a host address. Otherwise, the device can’t communicate with other devices. Unfortunately, the network classes A, B, and C are all too large to fit for almost all networks, so subnet mask is used to solve this problem. Subnet mask uses some bits from the host address and makes an IP address resemble a network address, subnet mask number, and host address. This reduces the total IP number that a network can support, exponentially, by a power of 2 of the bit number of subnet number (2[bit number of subnet number]).

Figure 5-5. IP address.

Subnet mask is used to set the subnet mask value, which should be the same value as that of the other devices residing in the same network it attaches to. For more information, see Section 3.1.4, “Address Assignment” in this manual. The default is 255.255.255.0.

Fallback Gateway: Set an IP address for a gateway to handle those packets that do not meet the routing rules predefined in the device. If a packet does not meet the criteria for another pre-defined path, it must be forwarded to a default router on a default path. This means any packet with an undefined IP address in the routing table will be sent to this device unconditionally. The default is 192.168.1.254.

Management VLAN: Show the management VLAN number.

Password: Set a password for this switch. Up to 16 characters are allowed in this parameter. Any alphanumeric character is acceptable. The default password is “admin.”

Inactivity Timeout (secs): Set the auto-logout timer. The valid value is 0–60 in minutes and a decimal point is not allowed. The value 0 means auto-logout timer is disabled. The default is 0.

5.2.2 Port Configuration

Function name: Port Configuration

Function description: Port Configuration sets the ports on the switch. You can set or reset the values for Mode and Flow Control. You can also set the power-saving mode for switch power consumption.

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Contents Supports http and Snmp interface for switch management Trademarks Used in this Manual Trademarks Used in this ManualFCC and IC RFI Statements NOM Statement Table of Contents Table of Contents Specifications General SpecificationsVlan Supports Port-based Vlan and Tag-based Ieee 802.1Q Vlan Management Software SpecificationsOverview FeaturesOverview Introduction What’s Included Not shown in -1 or LGB2118A componentsLGB2118A LED functions 2 24-Port Gigabit Smart Switch Eco Fanless LGB2124ANot shown in -3 or LGB2124A LED functions LGB2124A componentsFront view of 1000BASE-SX/LX LC, SFP Fiber Transceiver Optional Modules for LGB2118A and LGB2124AInstallation Starting Up the Switch InstallationHardware and Cable Installation Cabling Requirements 100BASE-TX TP Fiber supported by the switchVlan Attribute-based Vlan diagram Installation Address Assignment Login screen for the WebInstallation Prefix Length Typical Applications Copper cables Fiber cable RJ-45 Gigabit Smart SwitchMedia ConverterCopper cables RJ-45 Financial Copper cables RJ-45 Gigabit Smart SwitchBasic Concepts and Management Basic Concepts and ManagementEthernet MAC sub layer in physical layer in OSI model Logical Link Control LLCSsap address field Options Media Access Control MAC MAC AddressingEthernet Frame Format 0x8137 0x0835Gigabit Ethernet Frame Flow Control Ethernet parameters for half-duplex modeBasic Concepts and Management Collision Basic Concepts and Management How Does a Switch Work? Virtual LAN Ethernet switch Printer Workstations Ethernet switch MiniMini Computer frameRouter 1a2a Ethernet switchBasic Concepts and Management VID Link Aggregation LGB2118A Only Basic Concepts and Management Operation of Web-based Management Operation of Web-based ManagementWeb Management Home Overview Main menu function tree for Web interface System Information ConfigurationOperation of Web-based Management Port Configuration Operation of Web-based Management Vlan Group Configuration Vlan Mode ConfigurationFunction name Vlan Mode Setting Media supportedTag-VLAN Mode 10. Port-Based Vlan Configuration Function name Port Isolation Configuration Vlan Port Isolation ConfigurationAggregation LGB2118A Only Function name Igmp Snooping Configuration Mirroring ConfigurationIgmp Snooping Snmp 15. Mirror ports configurationOperation of Web-based Management Loop Detection Broadcast Storm Protection Operation of Web-based Management Quality of Service QoS Configuration Operation of Web-based Management Statistics Overview MonitoringDetailed Statistics Operation of Web-based Management Igmp Status Ping Status Warm Restart MaintenanceSoftware Upgrade Factory DefaultConfiguration File Transfer Logout Troubleshooting Resolving a No Link Condition TroubleshootingQuestions and Answers Contacting Black BoxAppendix MIB Specifications Appendix MIB SpecificationsBlackbox.com Blackbox.com Black Box Tech Support FREE! Live /7