Sim 05: eBGP Neighbors and Best-Path Influence¶
Blueprint 3.2.c · Difficulty: Medium · Time target: 20 minutes
R1 is a small enterprise edge router dual-homed to two providers. The providers (R2 and R3) and a remote network (R4) are already configured and outside your control. Bring up BGP on R1 and steer traffic in both directions.
Download the lab
CML lab file · EVE-NG lab file
4 nodes. The lab boots in its starting configuration. CML: Import a lab, then start it. EVE-NG: import the .unl from the lab list; if your image folder names differ, edit each node's image.
Topology¶
graph LR
R1["R1 AS 65001<br/>Lo0 10.255.255.1<br/>Lo10 10.10.10.1/24"]
R2["R2 AS 65002<br/>Lo0 10.255.255.2"]
R3["R3 AS 65003<br/>Lo0 10.255.255.3"]
R4["R4 AS 65004<br/>Lo1 198.51.100.1/24"]
R1 -- "Gi0/0 .1 - 10.1.2.0/30 - Gi0/0 .2" --- R2
R1 -- "Gi0/1 .1 - 10.1.3.0/30 - Gi0/0 .2" --- R3
R2 -- "Gi0/1 .1 - 10.2.4.0/30 - Gi0/0 .2" --- R4
R3 -- "Gi0/1 .1 - 10.3.4.0/30 - Gi0/1 .2" --- R4| Node | CML image |
|---|---|
| R1, R2, R3, R4 | IOSv |
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