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Production Configurations

This directory contains example configurations for large or mission-critical designs. The simple-dhcpd binary is pre–1.0 (see ../../project/PROGRESS_REPORT.md); validate behavior and scale in your environment — examples may describe features still roadmap-only or partially implemented.

Files

enterprise.yaml

Comprehensive enterprise configuration with full feature set:

  • 6 VLANs: Core infrastructure, production servers, development, user workstations, guest access, IoT/BYOD
  • High Capacity: 50,000+ leases supported
  • Advanced Security: Comprehensive MAC filtering, rate limiting, DHCP snooping
  • Static Reservations: Critical infrastructure and server devices
  • Enterprise Features: NetBIOS support, comprehensive logging, audit trails
  • Compliance Ready: Detailed logging for regulatory compliance

Use case: Large enterprises, corporate networks, mission-critical applications

datacenter.yaml

High-performance data center configuration:

  • 7 VLANs: Management, web tier, app tier, database tier, storage, development, backup/DR
  • Massive Scale: 100,000+ leases supported
  • Tiered Architecture: Separate networks for different application tiers
  • Long-term Leases: Extended lease times for stability
  • Performance Optimized: High-throughput configuration
  • Disaster Recovery: Backup/DR network included

Use case: Data centers, cloud providers, high-scale applications

Key Features

Enterprise-Grade Security

  • DHCP Snooping: Protection against rogue DHCP servers
  • MAC Filtering: Granular access control based on MAC addresses
  • Rate Limiting: Protection against DHCP flooding attacks
  • Audit Logging: Comprehensive security event logging
  • Compliance: Detailed logs for regulatory requirements

High Availability

  • Redundancy: Multiple DHCP servers for failover
  • Load Balancing: Traffic distribution across servers
  • Monitoring: Comprehensive health monitoring
  • Alerting: Automated alerting for issues

Performance Optimization

  • High Throughput: Optimized for high request volumes
  • Efficient Leasing: Optimized lease management
  • Resource Management: Efficient memory and CPU usage
  • Scalability: Support for large numbers of clients

Enterprise Features

  • Static Reservations: Guaranteed IP addresses for critical devices
  • IP Exclusions: Reserved ranges for infrastructure
  • Advanced Options: Custom DHCP options for specific needs
  • Comprehensive Logging: Detailed logs for troubleshooting and compliance
  • Monitoring Integration: Ready for enterprise monitoring systems

Configuration Guidelines

Network Architecture

  1. Core Infrastructure: Management and monitoring systems
  2. Production Servers: Business-critical applications
  3. Development: Development and testing environments
  4. User Workstations: End-user devices
  5. Guest Access: Public access with limited privileges
  6. IoT/BYOD: Internet of Things and bring-your-own-device

IP Address Planning

  • Static Reservations: Use for critical infrastructure
  • DHCP Ranges: Use for dynamic devices
  • Exclusions: Reserve ranges for future static assignments
  • Documentation: Maintain detailed IP address documentation

Security Implementation

  • Network Segmentation: Isolate different types of traffic
  • Access Control: Implement appropriate restrictions per VLAN
  • Monitoring: Enable comprehensive logging and monitoring
  • Regular Audits: Review and update security policies

Performance Tuning

  • Lease Times: Optimize based on device types and usage patterns
  • Rate Limiting: Configure appropriate limits for your environment
  • Monitoring: Monitor performance metrics and adjust as needed
  • Capacity Planning: Plan for growth and peak usage

Deployment

Prerequisites

  • Enterprise network infrastructure
  • High-availability DHCP server setup
  • Monitoring and logging infrastructure
  • Security policies and procedures
  • Network documentation

Installation

  1. Choose the appropriate configuration
  2. Customize for your specific environment
  3. Configure network infrastructure
  4. Deploy DHCP servers with redundancy
  5. Configure monitoring and alerting
  6. Test failover and performance

Monitoring

  • Monitor DHCP server performance
  • Track lease utilization and trends
  • Monitor security events
  • Regular log analysis and reporting
  • Capacity planning and optimization

Security Considerations

Network Security

  • Implement proper network segmentation
  • Use appropriate access controls
  • Monitor for security threats
  • Regular security audits

DHCP Security

  • Enable DHCP snooping
  • Implement MAC filtering
  • Configure rate limiting
  • Monitor for rogue servers

Compliance

  • Maintain detailed audit logs
  • Implement data retention policies
  • Regular compliance reviews
  • Document security procedures

Troubleshooting

Common Issues

  • Performance: Monitor server load and response times
  • Security: Check for unauthorized access attempts
  • Capacity: Monitor lease utilization and plan for growth
  • Failover: Test and verify failover procedures

Debug Commands

# Validate configuration
./simple-dhcpd -c config.yaml --validate

# Run with debug logging
./simple-dhcpd -c config.yaml --verbose --log-level DEBUG

# Monitor leases
tail -f /var/log/simple-dhcpd/simple-dhcpd.log | grep "lease"

# Check security events
tail -f /var/log/simple-dhcpd/simple-dhcpd.log | grep "security"

Maintenance

Regular Tasks

  • Review and update security policies
  • Monitor performance metrics
  • Update documentation
  • Test failover procedures
  • Review and rotate logs

Capacity Planning

  • Monitor lease utilization
  • Plan for growth
  • Optimize configuration
  • Upgrade hardware as needed

Next Steps

For specialized requirements, consider:

  • ../security/ - Security-focused configurations
  • Custom configurations for specific needs
  • Integration with enterprise monitoring systems
  • Compliance and audit procedures