EIGRP dynamic routing on three routers so that all LANs (192.168.1.0, 172.16.0.0, 192.168.2.0) can communicate with each other without manually adding static routes.
The lab uses three routers connected in a triangle. Each router connects to a separate LAN via a switch:-
- -R1 → 192.168.1.0/24 (PC0, PC1)
- -R2 → 172.16.0.0/24 (PC2, PC3)
- -R3 → 192.168.2.0/24 (PC4, PC5)
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- Inter-router links: 10.0.0.0/30 and 20.0.0.0/30
Commands configure EIGRP on the routers:-
- #router eigrp 100
- #network 192.168.1.0 0.0.0.255
- #network 10.0.0.0 0.0.0.3
- #no auto-summary
no auto-summary → avoids classful routing}
Command to Verify that EIGRP is working:-
-- Use these commands:
- show ip eigrp neighbors → shows established neighbor relationships
- show ip route → check if EIGRP routes appear with D (for EIGRP)
- ping between PCs in different LANs (e.g., PC0 → PC4) to confirm connectivity
-- The expected result of the lab:-
- All PCs from different networks should communicate successfully. For example:
- PC0 (192.168.1.10) should ping PC5 (192.168.2.20)
- PC2 (172.16.0.10) should ping PC1 (192.168.1.20)
- The routing table on each router should contain all three LAN networks learned dynamically via EIGRP.