• How to control session routing for multi-IP hosts in Boundary Rachana Badekar Boundary Feb 5, 2026 Rachana Badekar Share article Twitter share LinkedIn share Facebook share Copy URL In Boundary, adynamic host catalogis like an automated inventory system that discovers and manages infrastructure targets by syncing directly with cloud providers (such as AWS, Azure, or Google Cloud) rather than relying on manual entry. • Instead of an administrator statically defining IP addresses, the catalog uses plugins to query your infrastructure based on tags (e.g. • “all EC2 instances taggedEnvironment=Prod”). • As VMs are provisioned or terminated, the catalog updates in near real-time, ensuring that the list of connectable hosts in Boundary always matches the actual state of your dynamic infrastructure without human intervention. • Managing such a dynamic infrastructure often means dealing with hosts that have multiple network interfaces and IP addresses. • If you are running resources in AWS, Azure or GCP, you know that a single instance can have a public IP, a private IP, and potentially others assigned to different subnets.
Article Summaries:
- In Boundary, a dynamic host catalog is like an automated inventory system that discovers and manages infrastructure targets by syncing directly with cloud providers (such as AWS, Azure, or Google Cloud) rather than relying on manual entry. Instead of an administrator statically defining IP addresses, the catalog uses plugins to query your infrastructure based on tags (e.g. “all EC2 instances tagged Environment=Prod “). As VMs are provisioned or terminated, the catalog updates in near real-time, ensuring that the list of connectable hosts in Boundary always matches the actual state of your dyna
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