ASN Lookups in Splunk
Improved IP Address Enrichment
Enriching your logs with additional information can provide valuable insights. The ASN Lookup app for Splunk allows you to easily add Autonomous System Number (ASN) data to your logs, providing you with additional context about the IP addresses in your data.
Key Features
- Downloads MaxMind's autonomous system database
- Unzips the contents in memory
- Outputs a table of results that can be easily put into a lookup
- Uses ipinfo.io to lookup IP addresses and ASNs
- Supports IPv4 and IPv6 addresses and subnets in CIDR notation
Benefits
The ASN Lookup app provides several benefits, including:
- Enhanced IP address enrichment
- Improved network visibility
- Simplified security analysis
- Increased operational efficiency
Availability
The ASN Lookup app is available on Splunkbase. To install the app, follow these steps:
- Navigate to Splunkbase: https://splunkbase.splunk.com
- Search for "ASN Lookup"
- Click on the "Install" button
- Follow the on-screen instructions
Usage
Once the app is installed, you can use the following commands to perform ASN lookups:
- asngen - generates the ASN lookup table
- asnlookup - performs an ASN lookup for a given IP address
For more information on using the app, please refer to the documentation provided on Splunkbase.
Conclusion
The ASN Lookup app is a valuable tool for anyone who wants to enrich their logs with ASN data. By providing easy access to ASN information, the app can help you improve your network visibility, security analysis, and operational efficiency.
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