Static configuration

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Static configuration


 


To cTo Configure static NAT on Cisco devices, following steps are required:

1.    1.Configure private/public IP address mapping by using the ip nat inside source static                     PRIVATE_IP PUBLIC_IP command

2.   2.Configure the router’s inside interface using the ip nat inside command

3.    3. Configure the router’s outside interface using the ip nat outside command

 

Steps to configure static NAT on Cisco devices through CLI

 

Steps 1: Put IP address in every ports. But remember to put private IP into local inside and outside local to public IP.



 

PC0: Right click on PC0 then click IP Configuration and put IP 10.0.0.2 Subnet 255.0.0.0 Default Gateway 10.0.0.1

 

 

Do so same for PC1 and PC2

PC1: Right click on PC0 then click IP Configuration and put IP 10.0.0.3 Subnet 255.0.0.0 Default Gateway 10.0.0.1

PC2: Right click on PC0 then click IP Configuration and put IP 10.0.0.4 Subnet 255.0.0.0 Default Gateway 10.0.0.1

 

Router0 Configuration (Insert IP Address)

Go into the CLI mode.


 

Router>

Router>enable

Router#configure terminal

Router(config)#int Gig0/0

Router(config-if)#ip address 10.0.0.1 255.0.0.0

Router(config-if)#no shutdown

Router(config-if)#exit

 

Router(config)#

Router(config)#int Gig0/1

Router(config-if)#no shutdown

Router(config-if)#ip address 20.0.0.1 255.255.255.248

Router(config-if)#exit

 

 

Router1 Configuration (Insert IP Address)

Go into the CLI mode.

 

Router>

Router>enable

Router#configure terminal

Router(config)#int Gig0/0

Router(config-if)#ip address 20.0.0.6 255.255.255.248

Router(config-if)#no shutdown

Router(config-if)#exit

 

Router(config)#

Router(config)#int Gig0/1

Router(config-if)#no shutdown

Router(config-if)#ip address 30.0.1.1 255.255.255.252

Router(config-if)#exit

 

Router2 Configuration (Insert IP Address)

Go into the CLI mode.

Router>

Router>enable

Router#configure terminal

Router(config)#int Gig0/0

Router(config-if)#ip address 30.0.1.2 255.255.255.252

Router(config-if)#no shutdown

Router(config-if)#exit

Router(config)#ip route 0.0.0.0 0.0.0.0 int Gig0/0

 

 

 

Router0 Configuration (Configure the router's inside interface)

Go into the CLI mode.

Router(config)#interface Gig0/0

Router(config-if)#ip nat inside

Router(config-if)#exit

Router(config)#interface Gig0/1

Router(config-if)#ip nat outside

Router(config-if)#exit

 

Router(config)#ip nat inside source static 10.0.0.2 20.0.0.2

Router(config)#ip nat inside source static 10.0.0.3 20.0.0.3

Router(config)#ip route 0.0.0.0 0.0.0.0 int Gig0/1

Ping pc0

 

Here we can  access pc0,pc1 only because we only configure IP 10.0.0.2 and  10.0.0.3 but we didn’t configure 10.0.0.4 . So that pc2 could not access the internet.



Comments

  1. Assad ZamanApril 23, 2021 at 2:09 PM

    If any error in the context plz inform me??
    It will be helpful
    Thank you so much in advance

    ReplyDelete

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