3Com 3CR856-95 manual Dhcp Clients List, Dhcp Clients Screen

Page 37

DHCP Clients List

The DHCP Clients screen provides details of the devices that have been given IP addresses by the Gateway’s DHCP server. For each device that has been granted a lease, the IP address, Host Name and MAC address of that device is displayed.

Figure 31 DHCP Clients Screen

The Gateway grants leases for 7 days. If a computer does not connect for a week, its IP Address may be reused.

The Gateway will attempt to supply a computer the same lease as was issued previously, even if that lease has expired.

Expired leases are only reused when there are no free leases available. When an expired lease is re-issued the oldest lease that is not a fixed association is used.

The Release button allows the lease for an IP address that has been issued to a device to be cleared. If you are running short of addresses in the DHCP Pool and you know of computers that are unlikely to connect to your network soon you can release the IP address allowing it to be reallocated to another machine.

If you have spare or expired IP addresses in the pool you will not need to release addresses.

The IP Address, Host Name and MAC Address indicate the address that has been allocated. They identify the machine by name and by the unique number (MAC Address) of the machine’s network card.

The Fixed Association check box allows you to freeze the relationship between an IP address and a particular machine. If you check the box for one row, that IP address will always be given out to the same machine and will not be allocated to another machine even if the lease has expired. Clear the check box to allow the address to revert back to normal behavior.

Click Refresh to save any changes you have made.

Click New to allocate an IP address to a MAC address. Click Add to save.

37

Page 36 Page 38
Image 37
Page 36 Page 38
Contents Page United States Government Legend 3Com Corporation Bayfront Plaza Santa Clara, CaliforniaContents Using Discovery TroubleshootingIP Addressing End User Software Licence Agreement Safety InformationISP Information Index Regulatory NoticesPage Naming Convention About this GuideConventions Icon DescriptionFeedback about this User Guide Related DocumentationProduct Registration OfficeConnect Cable/DSL Secure Gateway Introducing the Officeconnect CABLE/DSL Secure GatewayCable/DSL Secure Gateway Advantages Example Network Using a Cable/DSL Secure GatewayMinimum System and Component Requirements Package ContentsFront Panel Power LED GreenAlert LED Orange Flashing slowly Two seconds on, two seconds offRear Panel Power Adapter socketCable/DSL Status LED Ethernet Cable/DSL portPage Before you Install your Gateway Installing the GatewayIntroduction Positioning the GatewayStatic PPPoEConnecting the Cable/DSL Secure Gateway Powering Up the GatewayPage Obtaining an IP Address Automatically Setting UP Your ComputersWindows 2000, XP Windows 95, 98, ME Disabling PPPoE and Pptp Client SoftwareMacintosh OS 8.5 Internet Properties Disabling Web ProxyPage Accessing the Wizard Running the Setup WizardWelcome Screen Setting the PasswordTo set the Gateway to World Time UTC Setting the Time ZoneInternet Settings Auto-Configuration SettingsDynamic IP Address Mode Static IP ModeConnection, use the following procedure PPPoE ModePptp Screen Pptp ModeActivating Dhcp Choosing your LAN SettingsViewing the Summary Dhcp Server Setup ScreenPage Navigating Through the Gateway Configuration Pages Gateway ConfigurationMain Menu Option TabsWelcome Screen Password ScreenSetup Wizard LAN SettingsLAN IP Settings Changing the LAN SettingsChanging the Dhcp Server Settings Dhcp Clients Screen Dhcp Clients ListStatic IP Address DSL or Cable Internet SettingsConnection to ISP Screen Connection to ISPStatic Address Setup Screen Configuring a Static IP AddressDynamic Address Setup Screen Configuring a Dynamic IP AddressPPPoE Setup Screen Configuring a PPPoE connectionConfiguring a Pptp connection Setting up NATOne-to-Many and One-to-One NAT Setting up One-to-Many NATSetting up One-to-One NAT Configuring the FirewallVirtual Servers Menu Creating a Virtual DMZ Creating a Virtual ServerPC Privileges Virtual Servers Settings ScreenTo assign different access rights for different computers To use access control for all computersSpecial Applications Screen Special ApplicationsCreating Custom Special Applications Adding and Editing Special ApplicationsCustom Special Applications Setup Screen Advanced Advanced Settings ScreenSetting the VPN Mode Configuring VPNsIPSec Configuration Address Pool for Pptp and L2TP clients field enter L2TP ConfigurationViewing VPN Connections Pptp ConfigurationAdding and Editing VPN Connections IPSec Connections using Gateway to Gateway IPSec Connections using Remote User AccessIPSec Connection Gateway to Gateway Connection Name field enter headsales L2TP over IPSec ConnectionsPptp Connections Editing IPSec RoutesRestart Accessing the System ToolsTime Zone Loading and Saving the Gateway ConfigurationUpgrading the Firmware of your Gateway Upgrade ScreenStatus Screen Viewing Status and LogsObtaining Support and Feedback for your Gateway Log Settings ScreenFeedback Screen Browsing to the Gateway Configuration Screens TroubleshootingBasic Connection Checks Forgotten Password Connecting to the InternetHttp//192.168.1.1 Alert LEDDoes the Gateway support virtual private networks VPNs? Frequently Asked QuestionsWindows Installation 95/98/2000/Me/NT Using DiscoveryRunning the Discovery Application Discovery Finish Screen Internet Protocol Suite IP AddressingIP Addresses and Subnet Masks Type OneDhcp Addressing How does a Device Obtain an IP Address and Subnet Mask?Static Addressing Type TwoAuto-IP Addressing Private IP AddressesPage Standards Technical SpecificationsSystem Requirements Cable SpecificationsEthernet Performance Operating SystemsImportant Safety Information Safety InformationWichtige Sicherheitshinweise Consignes importantes de sécurité Page Page 3Com Corporation END User Software Licence AgreementPage ISP Information Internet Characteristics Popular ISPs Connection TypesInformation Regarding Popular ISPs Page Glossary Ethernet DSL modemEthernet Address Fast EthernetIPSec IP AddressL2TP over IPSec MAC AddressNetwork SwitchNetwork Interface Card NIC ProtocolWizard TrafficPage Numbers IndexIeee Ietf NAT Ping VPN Page FCC Statement Regulatory Notices100 Page DUA08569-5AAA02 Published November
Related manuals
Manual 2 pages 51.21 Kb

3CR856-95 specifications

The 3Com 3CR856-95 is a versatile networking device designed to meet the demands of small to medium-sized businesses. As a part of the 3Com OfficeConnect series, the 3CR856-95 combines switching, routing, and security features into a compact, integrated solution that enhances network performance and reliability.

One of the main features of the 3CR856-95 is its ability to support multiple network configurations. It operates as a router and switch simultaneously, offering six Ethernet ports for wired connections, while also integrating wireless capabilities. This allows businesses to connect various devices seamlessly, including computers, printers, and smartphones, providing flexibility and convenience in a modern office environment.

The device incorporates advanced technologies such as Quality of Service (QoS) which prioritizes network traffic to ensure that bandwidth-intensive applications like video conferencing and VoIP run smoothly. This feature is essential for maintaining productivity and communication efficiency in busy office settings. Additionally, the 3CR856-95 supports both IPv4 and IPv6 protocols, making it a future-proof solution as businesses transition to the newer Internet Protocol standard.

Security is a critical consideration for any networking equipment, and the 3CR856-95 addresses this with robust measures. It includes a built-in firewall that protects the network from external threats, along with support for Virtual Private Networks (VPN), allowing secure remote access for employees working from off-site locations. Furthermore, the device supports WPA2 encryption for wireless connections, safeguarding sensitive data transmitted over the network.

Another important characteristic of the 3CR856-95 is its user-friendly interface, which simplifies the setup and management of the network. The device features a web-based management console that allows network administrators to easily configure settings, monitor traffic, and troubleshoot issues from any internet-connected device. This accessibility saves time and reduces the complexity often associated with network management.

In summary, the 3Com 3CR856-95 is a robust and feature-rich networking solution tailored for small to medium-sized businesses. With its combination of switching, routing, and security features, it provides a reliable platform for facilitating seamless communication and connectivity. Its support for advanced technologies and user-friendly management interface makes it a smart choice for organizations looking to enhance their network infrastructure.
Top Page Image Contents