how to confifured two routers cisco 1841 with console cable with steps as follows 2026

 how to confifured two routers cisco 1841 with console cable with steps as follows 2026

To configure two Cisco 1841 routers using a console cable, you first connect each router to a PC for initial setup, then connect the routers together using a serial or Ethernet cable for communication.

Here is a simple step-by-step guide (2026) to configure two Cisco 1841 routers using a console cable. I’ll explain clearly so you can follow even if you are a beginne

🔧 What You Need

2 × Cisco 1841 Router

1 × Console cable (RJ45 to DB9 or USB console)

PC/Laptop (PuTTY or Tera Term installed)

Ethernet cable (to connect router-to-router)

2 × Cisco 1841 routers

1 × Console cable (RJ45 to USB/DB9)

PC or Laptop with terminal software

Serial DCE/DTE cable or Ethernet crossover cable

Terminal software:

• PuTTY
• Tera Term

🧩 Network Example

We will connect like this:

Router1 -------- Router2
(192.168.1.1)    (192.168.1.2)

Step 1: Connect Console Cable

following steps

1. Plug the RJ45 side into the Console Port of Router1.
2. Plug USB/DB9 side into your PC.
3. Open PuTTY or Tera Term.
4. Select:
   • Connection Type: Serial
   • Speed: 9600

Press Enter until you see:

Router>

Repeat the same process for Router2.

Step 2: Basic Configuration

Configure Router1

enable

configure terminal

hostname Router1

interface fastethernet0/0

ip address 192.168.1.1 255.255.255.0

no shutdown

exit

interface serial0/0/0

ip address 10.0.0.1 255.255.255.252

clock rate 64000

no shutdown

exit

end

write memory

Configure Router2

enable
configure terminal
hostname Router2

interface fastethernet0/0
ip address 192.168.2.1 255.255.255.0
no shutdown
exit

interface serial0/0/0
ip address 10.0.0.2 255.255.255.252
no shutdown
exit

end
write memory

Step 3: Connect the Two Routers
Using Serial Cable

• Connect:
  • Router1 Serial0/0/0
  • Router2 Serial0/0/0

One side must be DCE.

Check with:

show controllers serial 0/0/0

clock rate 64000

Step 4: Test Connectivity

From Router1:

ping 10.0.0.2

From Router2:

ping 10.0.0.1

If successful:

!!!!!

means the routers are communicating.

---

Step 5: Add Static Routes

Router1

ip route 192.168.2.0 255.255.255.0 10.0.0.2

Router2

ip route 192.168.1.0 255.255.255.0 10.0.0.1

---

Useful Verification Commands

show ip interface brief
show running-config
show ip route
show controllers serial 0/0/0

 
ip routing for two routers configuration

🔌 Step 1: Connect to Router (Console)

1. Connect console cable from PC → Router Console port
2. Open software like:
   • PuTTY
   • Tera Term
3. Use settings:
   • Baud rate: 9600
   • Data bits: 8
   • Parity: None
   • Stop bits: 1

Press Enter → you will see:

Router>

---

⚙️ Step 2: Enter Configuration Mode

enable
configure terminal

---

🌐 Step 3: Configure IP Addresses on Interfaces

Example:

• FastEthernet0/0 → 192.168.1.1
• FastEthernet0/1 → 192.168.2.1

interface fastethernet0/0
ip address 192.168.1.1 255.255.255.0
no shutdown
exit

interface fastethernet0/1
ip address 192.168.2.1 255.255.255.0
no shutdown
exit

---

🔁 Step 4: Enable IP Routing

(Cisco routers usually have it enabled by default, but ensure it)

ip routing

---

🧭 Step 5: Configure Static Routing

Example:

• Network: 192.168.3.0/24
• Next hop: 192.168.2.2

ip route 192.168.3.0 255.255.255.0 192.168.2.2

---

🔄 Step 6: Default Route (Internet Access)

ip route 0.0.0.0 0.0.0.0 192.168.2.2

---

📡 Step 7: Verify Configuration

show ip route
show ip interface brief

---

🧪 Example Network Diagram

• PC1 → 192.168.1.10
• PC2 → 192.168.2.10
• Router connects both networks

👉 After configuration, both PCs can ping each other

---

💾 Step 8: Save Configuration

write memory

OR

copy running-config startup-config

---

✅ Quick Summary

• Assign IP to interfaces
• Enable interfaces (no shutdown)
• Add routes (static/default)
• Verify using show commands

---

Email This BlogThis! Share to X Share to Facebook Share to Pinterest

to click here more informaation about page