Datasheet

Lab – Configuring a Point-to-Point GRE VPN Tunnel

Required Resources

 3 Routers (Cisco 1941 with Cisco IOS Release 15.2(4)M3 universal image or comparable)

 2 Switches (Cisco 2960 with Cisco IOS Release 15.0(2) lanbasek9 image or comparable)

 2 PCs (Windows 7, Vista, or XP with terminal emulation program, such as Tera Term)

 Console cables to configure the Cisco IOS devices via the console ports

 Ethernet and serial cables as shown in the topology

Part 1: Configure Basic Device Settings

In Part 1, you will set up the network topology and configure basic router settings, such as the interface IP

addresses, routing, device access, and passwords.

Step 1: Cable the network as shown in the topology.

Step 2: Initialize and reload the routers and switches.

Step 3: Configure basic settings for each router.

a. Disable DNS lookup.

b. Configure the device names.

c. Encrypt plain text passwords.

d. Create a message of the day (MOTD) banner warning users that unauthorized access is prohibited.

e. Assign class as the encrypted privileged EXEC mode password.

f. Assign cisco as the console and vty password and enable login.

g. Set console logging to synchronous mode.

h. Apply IP addresses to Serial and Gigabit Ethernet interfaces according to the Addressing Table and

activate the physical interfaces. Do NOT configure the Tunnel0 interfaces at this time.

i. Set the clock rate to 128000 for DCE serial interfaces.

Step 4: Configure default routes to the ISP router.

WEST(config)# ip route 0.0.0.0 0.0.0.0 10.1.1.2

EAST(config)# ip route 0.0.0.0 0.0.0.0 10.2.2.2

Step 5: Configure the PCs.

Assign IP addresses and default gateways to the PCs according to the Addressing Table.

Step 6: Verify connectivity.

At this point, the PCs are unable to ping each other. Each PC should be able to ping its default gateway. The

routers are able to ping the serial interfaces of the other routers in the topology. If not, troubleshoot until you

can verify connectivity.