Configuring Dynamic NAT
The article should refer to:
Posts: Configure static routing (static route and the default route)
Download file on Packet Tracer
To implement:
1. ON Router Customer:
Step 1: Configure the default routing Default Route to the command ip route 0.0.0.0 0.0.0.0 200.1.1.1
Step 2: Configure NAT:
+ Definitions range of LAN IP access list by type stardard
Access list 10 permit 172.16.0.0 0.0.0.255 (LAN ip use of private)
+ Definition hired public IP range from ISP
ip nat pool public_range 100.1.1.1 100.1.1.6 netmask 255.255.255.248
+ Ip nat command definition.
ip nat inside source list 10 pool public_range
+ Specify the port connection Private
interface FastEthernet0/0
ip nat inside
+ Appoint the Public port
interface Serial2/0
ip nat outside
2. On the ISP Router
Customers have to hire a specific public IP range is 6 Ip network of 100.1.1.0/255.255.255.248 (ie user from 100.1.1.1 to 100.1.1.6 )
After the public IP tenants are supposed ISP static route to this network by static route command:
IP ROUTE 100.1.1.0 255.255.255.248 200.1.1.2
3. Some commands on the router:
– On ISP
– On Router customers:
interface FastEthernet0/0
ip address 192.168.1.1 255.255.255.0
ip nat inside
duplex auto
speed auto
!
interface FastEthernet1/0
no ip address
duplex auto
speed auto
shutdown
!
interface Serial2/0
ip address 200.1.1.2 255.255.255.252
ip nat outside
4. Check
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