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The fbsubnet l command typically serves one of three primary functions depending on the context (e.g., a router CLI, a firewall rulebase, or a network emulator):

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First, identify the ID of your Bastion/Firewall subnet. In a script, this would be your variable: LOCAL_SUBNET_ID="subnet-0123456789abcdef0" (fbsubnet_l)

You see cryptic BGP errors about overlapping subnets.

Learn how to use fbsubnet l to list, filter, and troubleshoot cloud subnets. Includes usage flags, real-world examples, and debugging tips for DevOps and network engineers.