Host Discovery

    Introduction

    Host Discovery automatically populates the database with IP address, DNS Hostname, MAC address, response time and availability.

    Optionally with SNMP, you can maintain an accurate, up-to-date inventory of all your network equipment. You can populate the database with the serial numbers and software revision of all the routers and switches on your entire network.

    Typically, it takes less than 60 seconds to discover a full /24 subnet.


    Basic Configuration

    1. Select a subnet in the Subnet Tree.
    2. Go to Tools > Host Discovery in the toolbar.
    3. Click Add and choose Ping, DNS Hostname and SNMP from the dropdown list.

    Leave the Ping and DNS Hostname at the default settings. They should work fine in 90% of cases.


    SNMP Configuration

    1. Select SNMP in the Host Discovery Options screen.
    2. Select Retrieval Type = Single OID from the dropdown list.
    3. Click the OID [...] button to display the MIB OID browser.
    4. Navigate to mib-2 > system > sysDescr in the MIB tree and click OK
    5. Click Edit SNMP Agents button to provide your SNMP credentials.
    6. Click Add
    7. In Community Properties, enter Name, SNMP Version, SNMP Read Community. Leave the other options at the default settings.
    8. Choose Host or IP address Range from the dropdown list.
    9. Enter low and high IP Address or Subnet e.g. 192.168.1.0/24 (one per line)
    10. Click OK in the Agent Properties
    11. Click OK again in the SNMP Agent Ranges

    Tip
    Leave the SNMP Update properties at the default settings. This populates the Notes field with the SNMP results.

    To run the Host Discovery

    1. Click Discover Now button. The Discovery Progress screen is displayed.
    2. Click Close to finish.
    3. Double click on an IP Address in the Address Grid to see the results.

    The Address Type, Hostname and Notes field should be populated automatically.


    Tip
    You can also add Multiple SNMP OIDs with the Shift + DownArrow key,
    just choose Retrieval Type = Multiple OIDs from the dropdown list.