EIGRP Multi-AS Redistribution and Internet Access Lab using GNS3/PNETLab. Includes NAT configuration and static default route advertisement to provide Internet connectivity for all Autonomous Systems.
-
AS 153: Uses IP ranges
172.16.x.x -
AS 222: Uses IP ranges
10.x.x.x -
R1 (Edge Router): Connects both ASs and provides Internet access via NAT
-
ISP Cloud: Simulates external Internet connectivity
-
✅ Features Full EIGRP routing in both AS domains Redistribution between EIGRP AS 153 and 222 NAT overload for private subnets to access the Internet Default route propagation to all routers in the topology
📂 Files Included topology.png → Network diagram configs/ → Router configuration files README.md → Documentation
🚀 How to Use Import the topology into GNS3 or PNETLab. Apply the provided configurations to the routers. Test connectivity between subnets and verify Internet access using ping 8.8.8.8.
🔑 Learning Objectives Understand EIGRP multi-AS scenarios Practice redistribution between EIGRP processes Configure NAT and default route for Internet access Troubleshoot EIGRP and NAT issues in lab environments
Created by Sajjad Qasemi
for CCNA/CCNP Routing & Switching practice.