D-Link DFL-200 manual Click Connections below it. a window will

Page 73

Connections

Click on Status in the menu bar, and then

click Connections below it. A window will

appear providing information about the content of the state table.

Shows the last 100

connections opened through the firewall. Connections are created when traffic is permitted to pass via the policies.

Each connection has two timeout values, one in each direction. These are updated when the firewall receives packets from each end of the connection. The value shown in the Timeout column is the lower of the two values.

Possible values in the State column include: TPC_CLOSE,

TCP_OPEN, SYN_RECV, FIN_RECV and so on.

The Proto column can have:

TCP - The connection is a TCP connection

PING - The connection is an ICMP ECHO connection

UDP - The connection is a UDP connection

RAWIP - The connection uses an IP protocol other than TCP, UDP or ICMP

The Source and Destination columns show from what ip and port on the source interface is the connection, and to what interface with what port number is the connection to.

Image 73

Contents Link DFL-200 Contents VPN Servers 111 125 122Access Control supported Features and BenefitsIntroduction Introduction to FirewallsIntroduction to Local Area Networking Physical Connections LEDsSystem Requirements Package ContentsManaging D-Link DFL-200 Resetting the DFL-200Administrative Access Administration SettingsAdd Admin access to an interface Add ping access to an interfaceEnable Snmp access to an interface Add Read-only access to an interfaceInterfaces SystemChange IP of the LAN or DMZ interface WAN Interface Settings Using Dhcp WAN Interface Settings Using Static IPIP Address The IP address of the WAN interface. This is Password WAN Interface Settings Using PPPoEWAN Interface Settings Using Pptp MTU Configuration WAN Interface Settings Using BigPondPassword The password supplied to you by your ISP Routing Remove a Static Route Add a new Static RouteGo to System and Routing Logging Enable Audit Logging Enable LoggingEnable E-mail alerting for ISD/IDP events Page Time Setting time and date manually Using NTP to sync timeChanging time zone Checking the Set the system time boxPolicy FirewallPolicy modes Action TypesSource and Destination Filter Service FilterSchedule Add a new policy Intrusion Detection / PreventionEnable the Delete policy checkbox Configure Intrusion DetectionEnable the Intrusion Detection / Prevention checkbox Change order of policyConfigure Intrusion Prevention Add a new mapping Port mapping / Virtual ServersDelete mapping Enable the Delete mapping checkboxDFL-200 Radius Support UsersEnable Radius Support Enable User Authentication via Http / HttpsEnable the Change password checkbox Change User PasswordAdd User Delete User Enable the Delete user checkboxAdd new recurring schedule SchedulesAdding TCP, UDP or TCP/UDP Service ServicesAdding IP Protocol Grouping ServicesProtocol-independent settings Introduction to IPSec VPNIntroduction to L2TP Introduction to PptpPoint-to-Point Protocol MPPE, Microsoft Point-To-Point Encryption Authentication ProtocolsL2TP/PPTP Clients Authentication protocolL2TP/PPTP Servers Authentication Protocol Introduction chapterMppe encryption Creating a LAN-to-LAN IPSec VPN Tunnel VPN between two networksCreating a Roaming Users IPSec VPN Tunnel VPN between client and an internal networkAdding a L2TP/PPTP VPN Server Adding a L2TP/PPTP VPN ClientVPN Advanced Settings IKE Proposal List Proposal ListsIPSec Proposal List Trusting Certificates CertificatesLocal identities Certificates of remote peersIdentities Active content handling Content FilteringEdit the URL Global Whitelist Edit the URL Global Blacklist Active content handling Servers Dhcp Server SettingsEnable Dhcp Relay Enable Dhcp ServerDisable Dhcp Server/Relayer Enable by checking the Use built-in Dhcp Server boxEnable DNS Relayer DNS Relayer SettingsEnable by checking the Enable DNS Relayer box Disable DNS Relayer Ping ToolsDynamic DNS Add Dynamic DNS SettingsPing Example Exporting the DFL-200’s Configuration BackupRestoring the DFL-200’s Configuration Restarting the DFL-200 Restart/ResetRestoring system settings to factory defaults Page Upgrade Firmware UpgradeUpgrade IDS Signature-database System StatusCPU Load Interfaces VPN Click Connections below it. a window will ConnectionsDhcp Server Logging Usage events How to read the logsDrop events Conn eventsClose Example Open ExampleStep by step guides LAN IP 192.168.4.1, Subnet mask LAN-to-LAN VPN using IPsecRemote Net 192.168.1.0/24 Enable Automatically add a route for the remote networkLocal net 192.168.1.0/24 LAN IP 192.168.1.1, Subnet maskRemote Net 192.168.4.0/24 LAN-to-LAN VPN using Pptp Username BranchOffice Click Global policy parameters Settings for Main office Page Under Users in local database click Add new Select Local databasePage LAN-to-LAN VPN using L2TP Username BranchOffice Check Use IPsec encryption Setup interfaces, System-Interfaces WAN IP193.0.2.20 Page Select Local database Under Users in local database click Add new More secure LAN-to-LAN VPN solution Page Page Settings for Main office Windows XP client and Pptp server Settings for the Windows XP clientSelect Connect to the network at my workplace and click Next Select Virtual Private Network connection and click Next Name the connection MainOffice and click Next 104 Select Do not dial the initial connection and click Next Page Click Properties Page Name the new user HomeUser Enter password Retype password Page Windows XP client and L2TP server 112 Settings for Main office Page Content filtering Select HTTP/HTML Content Filtering in the ALG dropdown Firewall-ServicesPage Page Intrusion detection and prevention Page Check Enable E-mail alerting for IDS/IDP events Appendix a Icmp Types and Codes AppendixesPage ESP Appendix B Common IP Protocol NumbersLimited Warranty What Is Not Covered Wichtige Sicherheitshinweise Warnung CE Mark WarningAdvertencia de Marca de la CE AttenzioneVcci Warning Offices Singapore D-LINK International 132

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