🔰 PART 1: CCNA Routing (Foundation Level)

1️⃣ Routing Basics

• What is routing?
• Difference between:
• Router vs Switch
• Routing vs Switching
• Static Routing vs Dynamic Routing
• Routing Table basics

2️⃣ IP Addressing & Subnetting

• IPv4 classes (A, B, C)
• CIDR & VLSM
• Subnet calculation (must-know for CCNA)
• Default Gateway concept

📌 Example:

192.168.1.0/24 → 254 hosts

3️⃣ Static Routing

• When & why use static routes
• Default route (0.0.0.0/0)
• Floating static route (backup route)

🔥 4️⃣ Route Redistribution

• Redistributing between:
• OSPF ↔ EIGRP
• OSPF ↔ BGP
• Problems:
• Routing loops
• Suboptimal routing

🔥 6️⃣ Advanced Route Filtering

• Prefix lists
• Route maps
• Distribute lists