Goal
- Bring up the branch LAN
- Make BR-R2 the default gateway for branch users
- No routing yet beyond direct networks
🔹 What we are configuring
- Device:
BR-R2 - Interface:
GigabitEthernet0/1(to BR-SW4) - Branch LAN network:
10.20.10.0 /24 - Gateway IP:
10.20.10.1
🔹 Exact commands (type slowly)
1️⃣ Click BR-R2 → CLI
enable
configure terminal
interface gigabitEthernet0/1
ip address 10.20.10.1 255.255.255.0
no shutdown
end
write memory
🔹 Verify (LOOK only)
show ip interface brief
You should see:
GigabitEthernet0/1→ up / up- IP:
10.20.10.1
🔹 Quick local test (Branch side only)
Configure ONE branch PC (connected to BR-SW4):
- IP:
10.20.10.10 - Mask:
255.255.255.0 - Gateway:
10.20.10.1
Then from that PC:
ping 10.20.10.1
You should get replies.
🧠 What this step achieved
- Branch LAN is now live
- Branch router is the gateway
- City B works locally
🚫 Still NOT doing
❌ No routing between HQ and Branch PCs
❌ No OSPF
❌ No static routes
❌ No VLANs
