[CCNA] Network Address Translation

Lab: Network Address Translation (NAT)

 

Scenario: Hub and Spokes, NAT using PAT
Connections: Internal Networks to External Network
Minimum requirements: 2 router and 1 switch
NOS: IOS version 12.x

Objective: Showing NAT table

Amount of Task: 2

 

Task 1: Configurations

 

router(config)#int s0/0/0
router(config-if)#ip nat outside  --> interface s0/0/0 as an outside interface
router(config-if)#no shutdown

 

router(config)#int fa0/0
router(config-if)#ip nat inside  --> interface fa0 as an inside interface
router(config-if)#no shutdown

 

router(config)#access-list 10 permit 10.y.y.0 0.0.0.255  --> allowing hosts cross over the boundary router
router(config)#ip nat inside source list 10 interface s0 overload  --> using PAT configuration

 

switch#ping 10.1.1.3 --> from your switch or host, make traffic out of your router
switch#ping 10.1.1.1 --> make traffic out of your router

 

Task 2: verifications

 

router#show ip nat translations  --> membaca table NAT
router#show ip nat statistics

 

switch#ping 10.140.z.2 --> success?
switch#ping 10.z1.z1.3  --> success?
switch#ping 10.z1.z1.11 --> success? why?

 

legend:
x = your group pod
y = your group pod + 1 = internal networks
z = your partner's group pod
z1 = your partner's group pod + 1