Cisco Certified Network Associate 0 (ccna)

Correct Answer: A
Static Routing Configuration Sim 2


QUESTION 1
Topology

Tasks
IP connectivity and OSPF are preconfigured on all devices where necessary. Do not make any changes to the IP addressing or OSPF. The company policy uses connected interfaces and next hops when configuring static routes except for load balancing or redundancy without floating static.

Connectivity must be established between subnet 172.20.20.128/25 on the Internet and the LAN at 192.168.0.0/24 connected to SW1:

1. 
   Configure reachability to the switch SW1 LAN subnet in router R2.
   
2. 
   Configure default reachability to the Internet subnet in router R1.
   
3. 
   Configure a single static route in router R2 to reach to the Internet subnet considering both redundant links between routers R1 and R2. A default route is NOT allowed in router R2.
   
4. 
   Configure a static route in router R1 toward the switch SW1 LAN subnet where the primary link must be through Ethernet0/1, and the backup link must be through Ethernet0/2 using a floating route. Use the minimal administrative distance value when required.
   

A. Solution

Task 1. Configure reachability to the switch SW1 LAN subnet in router R2.

We should check on R1, R2 and R3 to see if they learned how to reach 192.168.0.0/24 or not. If not then we can use static routes: R3(config)#ip route 192.168.0.0 255.255.255.0 e0/1 10.10.13.1
R1(config)#ip route 192.168.0.0 255.255.255.0 e0/1 10.10.12.2
R2(config)#ip route 192.168.0.0 255.255.255.0 e0/0 10.10.31.1

We have to configure both connected interface and next hop as requested (“The company policy uses connected interfaces and next hops when configuring static routes”)

Maybe there is a default route to the Internet on each router so we don’t need to configure the return path. Verification

R3#ping 192.168.1.1

Task 2. Configure default reachability to the Internet subnet in router R1. R1(config)#ip route 0.0.0.0 0.0.0.0 e0/0 10.10.13.3

Task 3. Configure a single static route in router R2 to reach to the Internet subnet considering both redundant links between routers R1 and R2. A default route is NOT allowed in router R2.

R2(config)#ip route 172.20.20.128 255.255.255.128 10.10.12.129

R2(config)#ip route 172.20.20.128 255.255.255.128 10.10.12.1 2

Task 4. Configure a static route in router R1 toward the switch SW1 LAN subnet where the primary link must be through Ethernet0/1, and the backup link must be through Ethernet0/2 using a floating route. Use the minimal administrative distance value when required.

R1(config)#ip route 192.168.0.0 255.255.255.0 10.10.12.2

R1(config)#ip route 192.168.0.0 255.255.255.0 10.10.12.130 2

Remember to save all devices:

R1, R2, R3#copy runnning-config startup-config