IP Connectivity Intermediate ~10 min · multi-device

Two routers, static routes, ping across

Two routers R1 and R2 connected via Gi0/0 ↔ Gi0/0. Both interfaces are already IP'd and up. Each router has its own loopback (Lo0 = 1.1.1.1 on R1, 2.2.2.2 on R2). Add static routes so each router can reach the OTHER'S loopback, then confirm both directions with ping 2.2.2.2 on R1 and ping 1.1.1.1 on R2.

[R1 Lo0 1.1.1.1] Gi0/0 10.0.12.1/30 <──> 10.0.12.2/30 Gi0/0 [R2 Lo0 2.2.2.2]

Topology

Objectives

○R1 has route to 2.2.2.2/32 via 10.0.12.2
○R2 has route to 1.1.1.1/32 via 10.0.12.1
○R1 has successfully pinged 2.2.2.2
○R2 has successfully pinged 1.1.1.1

Hints

Hint 1, switch devices

Click the R2 tab to CLI into R2. Each router keeps its own transcript.

Hint 2, the routes

R1 needs ip route 2.2.2.2 255.255.255.255 10.0.12.2. R2 needs ip route 1.1.1.1 255.255.255.255 10.0.12.1.

Hint 3, full sequence

# On R1:
enable
configure terminal
 ip route 2.2.2.2 255.255.255.255 10.0.12.2
 end
ping 2.2.2.2

# Switch to R2 tab
enable
configure terminal
 ip route 1.1.1.1 255.255.255.255 10.0.12.1
 end
ping 1.1.1.1

Bonus, traceroute

Try traceroute 2.2.2.2 from R1 once the ping works. You'll see two hops: the R2 interface IP that received the packet, then 2.2.2.2 itself.

Tabs = which device you're on. ? for help. ↑ / ↓ for history.

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Two routers, static routes, ping across

Stuck on a lab, or not sure what to practice next?