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LANsurveyor FAQ

What TCP and UDP ports are used by LANsurveyor?

Responder Clients uses both TCP and UDP port 4347.

  • SNMP (default on): UDP port 161
  • ICMP (Ping) (default on): ICMP
  • Responder Clients (default on): UDP port 4347
  • NetBIOS Clients (default on): UDP port 137
  • SIP (VoIP) Nodes (default on): UDP port 5060 (default)
  • Retrospect Clients (default off): UDP port 497
  • Timbuktu Clients (default off): UDP port 407

What SNMP MIBs does LANsurveyor use?

LANsurveyor uses the following MIBs:

  • MIB-II that exists on nearly all IP routers and many IP devices
  • Printer MIB that exists on some IP printers
  • Bridge MIB to determine switch port connectivity
  • Repeater MIB to determine hub port connectivity
  • Various Cisco-specific MIBs to determine user-defined interface names and switch ports

How does LANsurveyor's network discovery affect my network?

During network discovery, LANsurveyor uses an almost unmeasurable amount of network bandwidth. For each type of discovery method (ICMP Ping, NetBIOS, SIP, etc.), LANsurveyor sends one small (< 300 byte) UDP packet per IP address. In addition, LANsurveyor breaks up large IP address ranges into blocks of 10 addresses and waits several seconds for responses from those 10 addresses. By searching the network in this way, LANsurveyor should have no noticeable affect on your network bandwidth or devices.

How is LANsurveyor licensed?

LANsurveyor can be installed on a single machine to provide unlimited mapping. This means that LANsurveyor can be installed on a laptop computer and used at any number of sites for mapping and management purposes.

How do I map every IP address to its corresponding switch or hub port?

LANsurveyor uses a number of techniques to map managed switch/hub ports to their corresponding IP address nodes. It's important to remember switches and hubs are Layer 2 (Ethernet address) devices that don't have Layer 3 (IP address) information.

My SNMP device has custom MIBs, how do I input them into LANsurveyor?

LANsurveyor does not support the use of custom MIBs and there is no way to enter a custom MIB into LANsurveyor. LANsurveyor only uses MIBs specified by Internet standards. Manufacturers of SNMP devices may choose to implement all of the SNMP standards or they may choose to implement a subset.

Below is the list of standards LANsurveyor uses during the auto-discovery process. LANsurveyor may not use all of these during auto-discovery; it depends on the SNMP devices on your network. If you are unsure about which standards your device supports, check the documentation or contact the device manufacturer.

  • RFC 1213
  • RFC 1493
  • RFC 2108
  • RFC 2674

How do I upgrade the demo version of LANsurveyor to the licensed version?

To upgrade to the licensed version of LANsurveyor, simply install the licensed version over the demo version. Installing the licensed version over the demo version will preserve the configuration settings from the demo version.

Can nodes connected via wireless access points be detected and mapped?

If the wireless access point is configured as a bridge, then LANsurveyor will be able to map the nodes connected to it. If the wireless access point (or any router) is configured to use network address translation (NAT), then no network analysis tool will be able to go beyond the device to examine the nodes connected to it. NAT is designed to hide multiple workstations behind a single IP address.

What is a Responder Client?

A Responder Client is a software agent that collects asset information from Windows, Mac OS and OS X, and Linux workstations and servers and sends the information to LANsurveyor.

What TCP and UDP ports are used by a Responder Client

A Responder Client uses both TCP and UDP port 4347.

How do Responder Clients help me inventory my network?

LANsurveyor Responder Clients greatly enhance the functionality of LANsurveyor by providing device inventory and direct access to networked computers. Responder Clients enable LANsurveyor to provide complete hardware and software asset reports, distribute software, and directly manage the client computers, either individually or as a group.

In addition to the basic hardware asset information provided by LANsurveyor, Responder Clients deliver detailed software and hardware device information, such as:

  • Installed software, including application name and version
  • OS type and version
  • CPU, RAM and disk volume details
  • MAC address, IP address, and machine name
  • PCI cards

What is the difference between LANsurveyor and the LANsurveyor Enterprise Bundle?

LANsurveyor Enterprise Bundle is optimally packaged for deployment in an enterprise campus or for use by departmental teams of IT professionals. The bundle provides a "starter pack" for enterprises by combining LANsurveyor and Responder Client licenses in an attractively priced bundle:

  • Three (3) LANsurveyor licenses
  • One thousand (1000) Responder Clients

Additional LANsurveyor licenses or Responder Client packs can be purchased separately as needed.

What are the limitations with the free LANsurveyor evaluation version?

The free 21-day LANsurveyor evaluation includes the following limitations.

  • Generate Switch/Hub Ports Report – limited to 5 ports per switch
  • Printing and Exporting are disabled
  • Ability to export your network map to Microsoft Visio is disabled; however, you can view a sample network map within Microsoft Visio.
  • Data collection from Responder Clients is limited to 5 servers/workstations

How can I customize my large network map?

Help on customizing LANsurveyor maps is available in a Customizing Maps PDF and the LANsurveyor Admin Guide.

How do I configure email alerts?

In order to send email alerts, LANsurveyor must be configured to use your preferred email server(s). To configure your email server values, select Tools>Options>Network and enter the following values:

  • Primary Email Server: the IP address or domain name of your main SMTP (email) server — this is probably the same server that is configured in your email client software.
  • Backup Email Server: the IP address or domain name of a backup or secondary SMTP server, which will be used if the Primary Email Server is not responding
  • Email From Address: the email address that LANsurveyor will use as the "from" address when sending the email
  • Use SMTP Authentication: check this option if your SMTP server requires authentication in order to send email (LANsurveyor uses CRAM-MD5 or LOGIN authentication methods)
  • SMTP Authentication Password: the password associated with the "from" address used during authentication

How can I map just my routers and switches?

LANsurveyor's network discovery discovers all network nodes, regardless of whether they are end nodes, routers, switches or any other node with an IP address. However, if you have your network devices configured with unique community strings, then you can populate the community string fields with the router and switch community strings and disable ICMP and NETBIOS discovery options. Another great option is to perform a complete discovery and leverage the “Display Level” options in the toolbar. Click the "Display Level 1 and 2 Nodes" button (stacked blue triangle icons) to exclude end nodes from your map and click “Display Level 1” to only view your routers.

Why is LANsurveyor having trouble exporting its map to Visio?

LANsurveyor requires the use of Visio 2002 or later. If Visio is not installed or a version of Visio older than Visio 2002 is installed, LANsurveyor will not be able to export the generated map to Visio.

Why do I get errors when deploying the Responder?

By selecting Tools>Deploy, LANsurveyor has the capability of installing Responders on remote machines running Windows 2000, 2003 and XP. The deployment mechanism uses the Windows RPC (Remote Procedure Call) system and requires administrative privileges in order to complete the deployment. The LANsurveyor Session Log (select Window > Session Log to view the Session Log) will contain an entry for each machine for which the Neon Responder failed to deploy.

Here are some reasons why deployment may fail for some remote machines:

  • The machine is not running Windows 2000, 2003 or XP. The deployment mechanism depends on capabilities found only in these OS versions. Deployment will not work for Windows 95, 98, ME, or NT, nor for any version of Mac OS.
  • The machine does not have the Remote Procedure Call (RPC) service running. Open the machine's Services Control Panel to determine the status of the RPC service.
  • The machine does not have the Remote Registry service running or it is not installed. Open the Services Control Panel to determine if it is installed/running
  • File and Print Sharing is disabled on the machine. File and Print sharing needs to be enabled for the deployment to work
  • If the Session Log contains "invalid user name or password was given" entries, this means that you have insufficient administrative privileges or when LANsurveyor prompted you for a username and password, the entries you made were invalid. If you are running in an Active Directory environment, you'll want to use either Domain or Etherprise admin accounts to log into the LANsurveyor machine before attempting to deploy.
  • If the Session Log contains "has an unlicensed Responder" entries, this means LANsurveyor may have insufficient Responder licenses for the number of Responders installed on your network map(s). To see how many Neon Responders are licensed in a copy of LANsurveyor, select Window > License Manager.

How can I map just my routers and switches?

LANsurveyor's network discovery discovers all network nodes, regardless of whether they are end nodes, routers, switches or any other node with an IP address. After the network map is displayed, the easiest way to display just your network infrastructure (routers, switches, hubs and subnets) is to use LANsurveyor's "Display Level" toolbar buttons. Click the "Display Level 1 and 2 Nodes" button (it looks like a stack of blue triangles with a superscript 2.) Your map will then be displayed without end nodes.

Why do I get an "Error: 10053" message when I try to send email alerts?

Check your firewall and/or anti-virus settings. LANsurveyor uses SMTP to send email messages directly to your configured email server. If TCP port 25, which is used by SMTP, is blocked then this error message is displayed. You may have to adjust your firewall and/or anti-virus settings to open TCP port 25.

How are Responder passwords stored with maps?

The Responder password is stored with the map at map creation.

When you create a new map, the password configured in Tools>Options>Network is used as the default in the Create A New Network Map dialog. If you change the password in this dialog, it does not change the default password stored in the application preferences.

You can also change the password associated with an existing map by making the map window active, selecting Toosl>Map Properties, and editing the Responder Password value.

If you believe that you cannot communicate with Responders installed on one or more workstations because of password mismatches, you can examine a text log for the workstation(s) to see if it contains password error messages.

How do I configure LANsurveyor to send SMS alert messages using an attached phone?

You will need the following:

  • A mobile phone capable of sending SMS messages as a modem when attached to a computer (e.g. Sony Ericsson T637). The phone must understand the following two AT commands: CMGF (specify SMS message format) and CMGS (send SMS message text).

Please note, a phone that is capable of sending and receiving SMS messages is *not* necessarily sufficient to process AT commands to send SMS messages. You may need to contact the vendor to verify the phone has this capability.

  • A cable to connect the phone to the workstation or server running LANsurveyor. This cable may have to be purchased separately and drivers should be available enabling the workstation to communicate with the phone.

Connect the phone to the LANsurveyor workstation using the cable and install the necessary communication drivers.

In the LANsurveyor Alerts window, enter the COM port the phone is connected to and the phone number you want LANsurveyor to send the alert to.

How do I configure Vista firewall to work with LANsurveyor?

The Vista firewall blocks ping replies sent to the LANsurveyor application. This will prevent LANsurveyor from performing auto-discovery via ping.

To correct the situation, either turn off the Vista firewall or add a rule permitting ping replies through the firewall to the LANsurveyor application.

To add the rule to the Vista firewall, do the following on the Vista workstation running LANsurveyor:

  • Login to the Vista workstation as an administrator
  • Open the control panel and go to “Administrative Tools"
  • Open “Windows Firewall with Advanced Security” (this option will not be available if you are not logged in as administrator).
  • Click “New Rule” in the upper right of the “Windows Firewall with Advanced Security” window.
  • On the Rule Type window of the New Inbound Rule Wizard, check the “Custom” radio button and click next.
  • On the Program window of the New Inbound Rule Wizard, check the “All programs” radio button and click next
  • On the Protocol and Ports window of the New Inbound Rule Wizard, select ICMPv4 from the “Protocol type” drop down box and click next.
  • Click Next until you arrive at the window prompting you to enter a name for the rule. Enter a name and click next.

Now test the rule by launching LANsurveyor and create a new map with only the ICMP (Ping) audiscovery checkbox selected. The Mapping Progress window will show ICMP receipts and the resulting map should show one or more workstations with generic IP icons.