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D-Link DFL-500 user manual Configuring the external interface with a static IP address

Models: DFL-500

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•Controlling management access to the external interface

•Changing the external interface MTU size to improve network performance

Configuring the external interface with a static IP address

•Go to System > Network > Interface .

•For the external interface, select Modify .

•Set Addressing mode to Manual.

•Change the IP address and Netmask as required.

•Select OK to save your changes.

Configuring the external interface for DHCP

Use the following procedure to configure the external interface to use DHCP. This configuration is required if your ISP uses DHCP to assign the IP address of the external interface.

•Go to System > Network > Interface .

•For the external interface, select Modify .

•Set Addressing mode to DHCP and select OK to change to DHCP mode. Both the IP address and Netmask change to 0.0.0.0.

•Select Enable Connect to DHCP server if you want the DFL-500 NPG to automatically connect to a DHCP server when it starts up.

•Select OK.

The DFL-500 NPG attempts to contact a DHCP server from the external interface to set the external IP address, netmask, and default gateway IP address. When the DFL-500 NPG gets this information from the DHCP server, the new addresses and netmask are displayed in the IP address and Netmask fields.

DFL-500 User Manual	89

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D-Link DFL-500 user manual Configuring the external interface with a static IP address

Contents

Link DFL-500 Regulatory Compliance Table of Contents Firewall configuration IPSec VPNs Logging and reporting Page NAT/Route mode NAT/Route mode and Transparent modeTransparent mode IntroductionDFL-500 QuickStart Guide DFL-500 CLI Reference Guide Customer service and technical supportFor more information Mounting Package contentsGetting started Powering on Connecting to the web-based manager Initial configurationBits per second Connecting to the command line interface CLIDFL-500 login Stop bits Flow control Next stepsData bits Parity NAT/Route mode settings NAT/Route mode installationPreparing to configure NAT/Route mode Using the command line interface Using the setup wizardStarting the setup wizard Reconnecting to the web-based managerSet system route number 1 gw1 Connecting to your networksCompleting the configuration Configuring your internal networkSetting the date and time DFL-500 NPG network connectionsPreparing to configure Transparent mode Transparent mode installationChanging to Transparent mode Transparent mode settings Administrator PasswordSet system management ip 10.10.10.2 Configuring the Transparent mode management IP addressConfigure the Transparent mode default gateway Setting the date and timeConnecting to your network DFL-500 network connections Default policy Firewall configurationGo to Firewall Policy Adding NAT/Route mode policiesChanging to NAT/Route mode Authentication Source Destination Schedule Service ActionDynamic IP Pool Fixed Port VPN TunnelWeb filter Content filteringAdding a NAT/Route Int -Ext policy Adding Transparent mode policiesSource Destination Schedule Service Log Traffic Authentication Web filter Policy matching in detail Configuring policy listsAdding a Transparent mode Int -Ext policy Enabling and disabling policies AddressesChanging the order of policies in a policy list Deleting addresses Adding addressesGo to Firewall Address Adding a firewall addressOrganizing addresses into address groups ServicesGo to Firewall Address Group Adding an internal address groupProviding access to custom services Predefined servicesGrouping services Go to Firewall Service CustomSchedules Adding a service groupCreating one-time schedules Go to Firewall Schedule One-timeCreating recurring schedules Virtual IPsAdding a schedule to a policy Go to Firewall Schedule RecurringStatic NAT Port Forwarding Adding static NAT virtual IPsGo to Firewall Virtual IP Adding a static NAT virtual IP Using port forwarding virtual IPsGo to Firewall Policy Ext Int Adding policies with virtual IPsAdding a Port Forwarding virtual IP SourceIP pools Destination Schedule Service ActionAuthentication Log Traffic Web filter IP/MAC binding Go to Firewall IP/MAC Binding SettingGo to Firewall IP/MAC Binding Static IP/MAC Adding an IP PoolAdding IP/MAC addresses Configuring IP/MAC binding for packets going to the firewallViewing the dynamic IP/MAC list IP/MAC settingsEnabling IP/MAC binding Go to Firewall IP/MAC Binding Dynamic IP/MACSetting authentication time out Users and authenticationAdding user names and configuring authentication Adding user names and configuring authenticationAdding a user name DisableDeleting user names from the internal database Example Radius configuration Configuring Radius supportAdding Radius servers Deleting Radius serversAdding user groups Configuring user groupsAdding a user group Deleting user groupsInteroperability with IPSec VPN products IPSec VPNsSee Adding a remote gateway Configuring AutoIKE key IPSec VPNConfiguring a VPN concentrator for hub and spoke VPN Configuring manual key IPSec VPNConfiguring dialup VPN Configuring the member VPNs Configuring the VPN concentratorConfiguring IPSec redundancy Local ID Adding a remote gatewayGo to VPN Ipsec Remote Gateway Adding a remote gateway Dialup User selected About dialup VPN authenticationNat-traversal Keepalive Frequency Main mode with no user group selected About the P1 proposal About DH groupsLocal ID Empty KeyGo to VPN Ipsec AutoIKE Key Adding an AutoIKE key VPN tunnelAbout NAT traversal About replay detection About the P2 proposalAutokey Keep Alive Concentrator Adding an AutoIKE key VPN tunnelGo to VPN Ipsec Manual Key Adding a manual key VPN tunnelAbout perfect forward secrecy PFS Adding a manual key VPN tunnel Adding a VPN concentratorAdding a VPN concentrator Adding an encrypt policyVPN Tunnel Allow inbound Go to Firewall Policy Int-ExtAdding an encrypt policy Allow outbound Inbound Viewing VPN tunnel statusAutoIKE key tunnel status Testing a VPNViewing dialup VPN connection status Page Pptp and L2TP VPNs Pptp VPN configurationPptp VPN between a Windows client and the DFL-500 NPG Configuring the DFL-500 NPG as a Pptp gatewayGo to VPN Pptp Pptp Range Source Destination Service Action Example Pptp Range configurationConfiguring the DFL-500 NPG as an L2TP gateway L2TP VPN configurationGo to VPN L2TP L2TP Range L2TP VPN between a Windows client and the DFL-500 NPGSample L2TP address range configuration Enabling web content Filtering Web content filteringBlocking web pages that contain unwanted content Configuring content filteringBacking up and restoring the banned word list Changing the content block messageClearing the banned word list Go to Web Filter URL Block Blocking access to URLsConfiguring URL blocking Changing the URL block message Clearing the URL block listDownloading the URL block list Uploading a URL block listGo to Web Filter Script Filter Exempting URLs from content or URL blockingRemoving scripts from web pages Clearing the Exempt URL list Adding URLs to the Exempt URL ListDownloading the Exempt URL list Go to Web Filter Exempt URLUploading an Exempt URL list Go to Log&Report Log setting Configuring LoggingLogging and reporting Recording logs on a remote computerSelecting what to log Configuring alert emailExample log settings Go to System Network DNS Configuring alert emailSystem status AdministrationExecute ping Upgrading the DFL-500 NPG firmwareEnter File Name image.out Enter Tftp Server AddressEnter Local Address Restoring system settings Backing up system settingsRestoring system settings to factory defaults Displaying the DFL-500 NPG serial numberChanging to Transparent mode System status monitor Restarting the DFL-500 NPGShutting down the DFL-500 NPG System status monitor Network configurationCPU usage Memory usage Up time Total Number of Sessions Protocol From IP From Port To IP To Port Expire ClearConfiguring the external interface Configuring the internal interfaceConfiguring the internal interface Go to System Network InterfaceConfiguring the external interface with a static IP address Configuring the external interface Configuring the external interface for PPPoEHttps Ping SSH Snmp Configuring the management interface Transparent mode Configuring routingSetting DNS server addresses Adding routing gatewaysGo to System Network Routing Table Adding a default routeAdding routes to the routing table Adding routes Transparent mode Configuring the routing tableEnabling RIP server support Go to System Network RoutingDefault Route Exclusion Range Providing Dhcp services to your internal networkGo to System Network Dhcp Starting IP Ending IP Netmask Lease Duration DomainExample Dynamic IP list System configurationSample Dhcp settings Example date and time setting Setting system date and timeGo to System Config Time Go to System Config Admin Adding and editing administrator accountsChanging web-based manager options Read Write OnlyGo to System Config Snmp Configuring Snmp100 101 Glossary102 103 104 Index105 CLI106 Dhcp107 Snmp108 PFS109 Transparent mode manual key Adding VPN tunnel IPSec VPN110 NTP111 Pptp112 Smtp113 VPN114 IPSec VPN Remote Gateway user groups Deleting115 116 Technical Support117 Registration Card118 119 Limited Warranty120 121 122 Registration