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Lancom Systems 7111 VPN, 8011 VPN Change then to menu item Expert configuration Status LAN statis

Models: 8011 VPN 7111 VPN

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Change then to menu item Expert configuration Status LAN statis-

LANCOM 7111 VPN – LANCOM 8011 VPN

Chapter 9: Troubleshooting

tested (e.g. “DSL1” or “LAN-1”). Pay attention to the correct spelling of the interfaces. Start the test for the specified interface by clicking on Execute.

Change then to menu item Expert configuration Status LAN statis-

tics Cable test results. The results of the cable test for the individual interfaces are show up in a list.

The following results can occur:

OK: Cable plugged in correctly, line ok.

open with distance “0m”: No cable plugged in or interruption within less than 10 meters distance.

open with indication of distance: Cable is plugged in, but defect (short- circuited) at the indicated distance.

Impedance error: The pair of cables is not terminated with the correct impedance at the other end.

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Lancom Systems 7111 VPN, 8011 VPN manual Change then to menu item Expert configuration Status LAN statis

Contents

LANCOM 7111 VPN LANCOM 8011 VPN 2004 LANCOM Systems GmbH, Wuerselen Germany. All rights reserved Preface Security settingsModel variants User manual and reference manualNotes symbols This documentation was compiled …info@lancom.de 2 Installation Contents3 Basic configuration 4 Setting up Internet access5 Linking two networks Providing dial-up access7 Sending faxes with LANCAPI Security settingsAppendix 9 Troubleshooting1 Introduction 1.1 Which use does VPN offer?Chapter 1 Introduction A subsidiary is connected to the LAN, typically using a leased line Conventional network infrastructureAccess Service - RAS Chapter 1 IntroductionNetworking via the Internet Further important features of the Firewall are Intrusion Detection 1.2 FirewallDenial-of-Service Protection 1.3 What does a router do?Quality-of-Service / Traffic management LANCOM CD1.3.1 Bridgehead to the WAN Internet access for a LAN e.g. via DSL or ISDN1.3.2 Areas of deployment for routers LAN to LAN coupling via VPN or ISDN1.4 What can your LANCOM router do? Remote access to the company network via VPN or ISDNLANCOM LANCOMWAN connection LAN connectionConfiguration Quality of ServiceLANCOM Optional software extensions2 Installation 2.1 Package contents2.2 System preconditions 2.3.1 Status displays 2.3 Introducing LANCOM routerFront side Meanings of the LEDsand the LED remains lit green Chapter 2 InstallationThe Online LED indicates the overall status of all WAN ports inverse flashingChapter 2 Installation Flashing Power LED but no connection?Completely deactivate the lock that has been triggered set limit to LANCOMNot connected or no S0 voltage no error message Chapter 2 InstallationConnection status of the WAN connection Data traffic via the WAN connectionLCD display 2.3.2 The back of the unit 2.4 Hardware installationWAN - connect the WAN port with the included connector cable dark blue plug e. g. with the ethernet port of a DSL modem or of a cable modem 2.5.1 Starting LANCOM setup 2.5 Software installation2.5.2 Which software should you install? 3 Basic configuration 3.1.1 TCP/IP settings3.1 Which information is necessary? Configure manually nevertheless? New LAN-fully automatic configuration possibleInformation required for manual TCP/IP configuration IP address and netmask for the LANCOM router3.1.3 Settings for the DSL connection 3.1.2 Configuration protection3.1.4 Settings for the ISDN connection Enable DHCP server?LANconfig 3.2 Instructions for LANconfig3.1.5 Connect charge protection Chapter 3 Basic configurationComplete the configuration with Finish 3.3 Instructions for WEBconfig Network without DHCP serverChapter 3 Basic configuration Network with DHCP server Starting the wizards in WEBconfigPage Entering the password in the web browser IP address assignment via the LANCOM router default 3.4 TCP/IP settings to workstation PCsIP address assignment via a separate DHCP server Manual IP address assignmentChapter 3 Basic configuration Does the setup wizard know your Internet provider? 4 Setting up Internet accessAdditional information for unknown Internet providers Chapter 4 Setting up Internet accessISDN - dial-in number User name and password Additional connection optionsChapter 4 Setting up Internet access Dynamic channel bundling ISDN only4.1 Instructions for LANconfig 4.2 Instructions for WEBconfigLANconfig Quick access to the setup wizards Always configure both sides 5 Linking two networksSecurity aspects 5.1.1 General information 5.1 What information is necessary?The name of the remote station is needed for its identification 5.1.2 Settings for the TCP/IP router Chapter 5 Linking two networksNetmask 5.1.3 Settings for the IPX router DNS access to the remote LANExtranet VPN 5.1.4 Settings for NetBIOS routing 5.3 Instructions for WEBconfig 5.2 Instructions for LANconfigPing - quick testing for TCP/IP connections 6 Providing dial-up access 6.1 Which information is required?Security aspects The ISDN calling line identity CLI 6.1.1 General information6.1.3 Settings for IPX 6.1.2 Settings for TCP/IP6.1.4 Settings for NetBIOS routing Chapter 6 Providing dial- up accessUser SAMPLE 6.2 Settings for the dial-in computer 6.2.1 Dial-up via VPN6.2.2 Dial-up via ISDN 6.4 Instructions for WEBconfig 6.3 Instructions for LANconfigFrom the main menu, launch the Connect two local networks wizard Chapter 6 Providing dial- up accessChapter 7 Sending faxes with LANCAPI 7 Sending faxes with LANCAPIChapter 7 Sending faxes with LANCAPI 7.1 Installation of the LANCOM CAPI fax modem7.2 Installation of the MS Windows fax service Select the option Printers and Faxes from the control panelChapter 7 Sending faxes with LANCAPI 7.3.2 Send a fax with the MS Windows fax service 7.3 Sending a fax7.3.1 Send a fax with any given office application Chapter 7 Sending faxes with LANCAPI LANCOM 7111 VPN - LANCOM 8011 VPN8 Security settings 8.1 The security settings wizard8.1.1 Wizard for LANconfig 8.1.2 Wizard for WEBconfig 8.2.1 Wizard for LANconfig8.2 The firewall wizard 8.3 The security checklist 8.2.2 Configuration under WEBconfigRules Have you permitted remote configuration? Have you assigned a password for the configuration?Have you activated the Firewall? Do you make use of a ’Deny All’ Firewall strategy?Have you closed critical ports with filters? Have you excluded certain stations from access to the router?Is your saved LANCOM router configuration stored in a safe place? Chapter 8 Security settingsProblems with the cabling? 9 Troubleshooting9.1 No WAN connection is established 9.2 DSL data transfer is slow9.3 Unwanted connections under Windows XP 9.4 Cable testingIncreasing the TCP/IP window size under Windows LAN statisticsChange then to menu item Expert configuration Status LAN statis 10 Appendix 10.1 Performance data and specificationsLANCOM 7111 VPN LANCOM 8011 VPNLANCOM 7111 VPN LANCOM 8011 VPNChapter 10 Appendix 10.2.1 DSL interface 10.2 Contact assignment10.2.2 ISDN-S0 interface Connector10.3 CE declaration of conformity 10.2.4 Configuration interface Outband10.2.3 Ethernet interfaces 10/100Base-T ConnectorNumerics IndexBasic configuration Authentication data12, 14, 16 see status displaysSetting up access to the Internet Enable software compressionVirtual Private Network VPN