Lindy CPU IP Access Switch Plus manual Connecting via dial up modem or Isdn link

Page 31

Connecting via dial up (modem or ISDN) link

When you use a modem or ISDN link to make the connection, the CPU IP uses standard network protocols to create a private two-device network. This approach ensures consistency and allows you to use exactly the same VNC viewer or browser to view the hosts systems. This is achieved using PPP (Point to Point Protocol) and means that you need to use a dial-up networking method to initiate the connection. Such software is standard with operating systems such as Windows, Linux and Mac OS.

To initiate a dial up link

1Using a system that has a modem or ISDN adapter installed, locate the dial-up networking option on your system. Please refer to your system documentation for more information.

2Using the dial-up networking option, enter the telephone/ISDN number where the CPU IP can be contacted.

3Initiate the call and when the link is made, continue with either the standard VNC viewer or browser connection.

Note: For the viewer network connection address, you must use the IP address that the admin user has set as the Server address (or PPP server IP address) within the Modem configuration screen.

Downloading VNC viewer from the CPU IP

The CPU IP has the ability to distribute its own VNC viewer application.

To download the VNC viewer 1 Open your Web browser.

2Enter the network address where the CPU IP is situated (in the form: http://192.168.0.3) and make the link.

3In the opening CPU IP screen, click the link that offers to download the secure VNC viewer ‘from the unit’.

4 Save the download file (vncviewer.exe) to your system.

5Select and run the downloaded file and then connect to the CPU IP using the VNC viewer application.

If you need to enter a port number

Usually, when you make a network connection to the CPU IP (either using the VNC viewer or a Web browser) you simply enter the IP address, i.e. 192.168.0.3. However, if a special configuration is necessary, then you may be asked to specify a port number as well as the IP address.

What is a port?

To enter a port number in a Web browser

1Enter the required IP address in the usual Address box, i.e. http://192.168.0.3

2At the end of the IP address, add a single colon and then enter the port number (in this example, the required port number is 8000),

i.e. http://192.168.0.3:8000

3 Continue with the standard Web browser instructions.

To enter a port number in VNC viewer

1Enter the required IP address in the usual ‘Server’ box, i.e. http://192.168.0.3

2At the end of the IP address, add two colons and then enter the port number (in this example, the required port number is 115900),

i.e. http://192.168.0.3::115900

3 Continue with the standard VNC viewer instructions.

   



30

Image 31
Contents  CPU IP Access Switch PlusContents Index IP network/Internet Four simultaneous remote usersLocal user Modem/ISDN portCPU IP Access Switch Plus features front and rear CD-ROM What’s in the box What you may additionally need  MountingSingle unit rack brackets Double unit rack bracketsConnections Host computer or KVM switchTo connect the IP network port Local keyboard, video monitor and mouseIP network port To connect a local keyboard, video monitor and mouseTo connect a modem or Isdn port Power supply connectionTo connect the power supply Modem/ISDN portTo connect and address the switch boxes Power control portPart 2 Remote configuration Initial configurationPart 1 Local configuration Part 1 Local configurationEncryption To perform the initial local configurationAdmin password Time and DateEncryption Encryption settingsCPU IP encryption settings Viewer encryption settingsRecognising an IntelliMouse-style mouse Which restore setting do I use?To restore mouse operation when hot plugging Hot plugging and mouse restorationTo invoke a configuration reset by main menu Resetting the configurationCPU IP asks for an unknown admin password CPU IP does not display the configuration sequenceTo perform the remote configuration Part 2 Remote configurationPlacing CPU IP behind a router or firewall Networking issuesPort settings Positioning CPU IP in the networkFirewall/router address AddressingTo discover a DHCP-allocated IP address DNS addressingEnsuring sufficient security Placing CPU IP alongside the firewallPorts Power Off Power switching configurationPower control sequences To configure the power sequences for each host computerImportant Wait until the upgrade is complete Performing a flash upgradeTo view the local control menu Connecting to the CPU IPLocal connection To make a local connectionTo avoid the ‘hall of mirrors’ effect Remote connectionsRemote connection by Web browser To connect using the VNC viewerTo connect using your Web browser Remote connection by VNC viewerWhen using the viewer window Using the viewer windowMenu bar To select a host ConfigureMouse pointers Host selectionRe-synchronise mouse Access mode shared/privatePower control Auto calibrateControls   Setting the Threshold manuallyPhase ContrastDownloading VNC viewer from the CPU IP Connecting via dial up modem or Isdn linkIf you need to enter a port number Linux Viewer encryption settingsSupported web browsers WindowsGetting assistance TroubleshootingTo access the local configuration menus Appendix 1 Local configuration menusUnit configuration Network configuration Modem configuration To reset the CPU IP configuration Reset configurationWhat is IP access control? Clear IP access controlTo clear IP access control Preferred encoding Appendix 2 VNC viewer connection optionsColour/Encoding Auto selectMisc InputsSave configuration file as DefaultsReload defaults Save as defaultsAppendix 3 VNC viewer window options Encoding and colour level Appendix 4 Browser viewer optionsSecurity To access the remote configuration menus Appendix 5 Remote configuration menusMain configuration menu Logged on users User accounts Host Keyboard Layout Screensaver timeoutHardware Version Firmware VersionForce VNC protocol Advanced unit configurationIdle timeout Protocol timeoutIP network mask IP access controlIP gateway To edit/remove access control entries Setting IP access controlTo define a new IP access control entry To reorder access control entriesPower control port Serial port configurationModem port To create a new host entry Host configurationList Logging and statusTo copy and paste the log Occurred Click to clear All log entries RefreshIP addresses Appendix 6 Addresses, masks and portsNet masks Binary octet after Net masks the binary explanationInside a bit-wise and function Binary equivalentAddress ranges Calculating the mask for IP access controlSingle locations All locationsPorts Security issues with portsFemale Appendix 7 Cable and connector specifications6pin mini-DIN 9pin D-type 4pin RJ10Appendix 8 Hotkey sequence codes Safety considerations when using power switches with CPU IP Other products in the CPU Switch rangeWarranty Safety informationEuropean EMC directive 89/336/EEC Radio Frequency EnergyFCC Compliance Statement United States Germany France Italia USAIndex 