# REL02-BP05: Enforce non-overlapping private IP address ranges

## Description

Đảm bảo IP ranges không overlap để tránh routing conflicts.

## Implementation Guidance

- Maintain central IP address registry
- Use automation to allocate IP ranges
- Validate ranges before deployment
- Plan for acquisitions and mergers
- Use private address space efficiently (RFC 1918)

## Risk Level

Medium - Overlapping IPs cause routing failures and connectivity issues.

## Related Best Practices

- [REL02-BP03](REL02-BP03-IP-Subnet-Allocation.md)
- [REL02-BP04](REL02-BP04-Hub-And-Spoke-Topology.md)
