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Managing Network Routes with route

The route command in the ChromeOS Shell provides insights into the system's network routing tables. This utility is essential for diagnosing and managing network connectivity.

Usage

bash route [options]

Options

  • -4: Display only IPv4 routes.
  • -6: Display only IPv6 routes.
  • --all: Show all available routing tables.

Examples

1. Display All Routes

bash route

This command lists all active network routes on the system.

2. Show IPv4 Routes Only

bash route -4

This filters the output to display only IPv4 routing entries.

3. Display IPv6 Routes

bash route -6

This filters the output to show only IPv6 routing entries.

4. View All Routing Tables

bash route --all

This outputs comprehensive routing information, including auxiliary routing tables.

Additional Information

  • Purpose: The routing table determines how packets are forwarded between different networks or interfaces.
  • Diagnostic Use: The route command is useful for verifying correct routing configurations, especially in complex or multi-network setups.
  • Integration: Use alongside commands like ping or tracepath for in-depth network diagnostics.

Best Practices

  1. Filter by Protocol

  2. Use -4 or -6 to focus on IPv4 or IPv6 routes for clarity and debugging specific issues.

  3. Combine with Diagnostic Tools

  4. Incorporate route into troubleshooting workflows to identify routing misconfigurations or anomalies.

  5. Document Routing Tables

  6. Save outputs from route for audit trails or configuration backup.

The route command is a crucial utility for network diagnostics, offering visibility into how traffic is routed on a ChromeOS device.