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IP Scope

Including and Excluding Networks From Discovery

By default, there are no limitations on discovery, and all IP addresses are allowed (i.e., the Include scope is 0.0.0.0/0).

The Include and Exclude lists act as an Access Control List for IP Fabric; when an IP address is found during discovery, it is then checked against this ACL.

graph LR
    ip[IP found during discovery] --> exclude{Is the IP in the Exclude list?}

    exclude -->|No| include{Is the IP in the Include list?}
      include -->|Yes| continue[<strong>Continue with the discovery logic</strong>]
      include --> |No| doNotDiscover[<strong>Do not discover</strong>]
    exclude -->|Yes| doNotDiscover

    style continue fill:#33dd00
    style doNotDiscover fill:#dd3300

Discovery can be limited to one or more subnets using the Include list (in Settings → Discovery & Snapshots → Discovery Settings → Discovery → IP Scope → IP networks to include in discovery and analysis). Enter one or more subnets to limit the discovery process to addresses from particular networks.

Specific parts of the network can also be excluded from discovery using the Exclude list (in Settings → Discovery & Snapshots → Discovery Settings → Discovery → IP Scope → IP networks to exclude from discovery and analysis).

IP Scope

Priority

The Exclude list takes precedence over the Include list.

API Discovery

The IP Scope settings are not applied to vendors discovered using the Vendor APIs (everything is downloaded and used in discovery).

Example:

  • IP networks to include in discovery and analysis: 10.0.0.0/8
  • IP networks to exclude from discovery and analysis: 10.24.0.0/16
  • Result: Only the network 10.0.0.0/8 is scanned, excluding the 10.24.0.0/16 subnet.