Enterprise Networking Infrastructure (CCNA-Based Implementation)

I successfully designed and implemented a complete enterprise networking solution as part of my CCNA journey. The project focused on building a secure, scalable, and high-availability infrastructure, applying real-world networking practices aligned with industry standards.

Key Features:

Redundancy & High Availability: Configured EtherChannel (LACP) and HSRP to eliminate single points of failure.

Dynamic Routing: Deployed OSPF with proper network advertisements and default routes.

Segmentation & VLANs: Designed multiple VLANs with Inter-VLAN Routing using Router-on-a-Stick and Multilayer Switch.

IP Addressing & DHCP: Subnetted the network and implemented DHCP with relay for automated IP allocation.

Security Enhancements:

Access Control Lists (ACLs) for traffic filtering.

Port Security with MAC learning and Syslog violation logging.

802.1X authentication for device/user access control.

DHCP Snooping, DAI, and BPDU Guard for Layer 2 security.

Secure remote management with SSH.

Network Services: Integrated Syslog server for centralized monitoring and NTP server for synchronization.

NAT & PAT: Configured to provide secure Internet access.

Wireless & QoS: Extended enterprise Wi-Fi coverage and applied QoS for VoIP prioritization.

Management: Centralized monitoring and administration through Syslog, SSH, and hierarchical network design.

Results:

100% connectivity across all enterprise devices.

Strong security posture with proactive monitoring.

Reliable, redundant, and scalable architecture ready for enterprise operations.