How to Discover IP Addresses in Universal Discovery

In Universal Discovery, IP addresses can be defined as the following two types:

• Data center IP addresses. These IP addresses are stable or long-term.
• Client IP addresses. These IP addresses are dynamic or short-term.

This task contains the following:

• How to discover Data center IP addresses

  1. Run the following ICMP jobs:

     • Range IPs by ICMP
     • Class B IPs by ICMP
     • Class C IPs by ICMP
  2. Run the Range IPs by nmap job.

  For details about these jobs, see the UCMDB Discovery and Integrations Content Guide - Discovery Modules.

• How to discover Client IP addresses

  1. Run the Client Connection by SNMP job to discover switches or routers. The IP addresses need to be defined in the Data Flow Probe range as the Client IP addresses.

  2. Run the IP MAC Harvesting by SNMP job to discover Client IP addresses that are cached in the triggered switch or router.

  For details about these jobs, see the UCMDB Discovery and Integrations Content Guide - Discovery Modules.

• How to improve performance for IP addresses related jobs

  • Adjust the following job parameters if available:

    • bulkSize
    • retryDiscover
    • threadPoolSize
    • timeoutDiscover

    For details about these job parameters, see the UCMDB Discovery and Integrations Content Guide - Discovery Modules.

  • Change the Get Request Operation Type value in the SNMP protocol from Get-NEXT to Get-BULK if possible.

    For details about this value, see SNMP Protocol.