CCNA ICND1 Lab6 – Configuring Dynamic NAT

Ensurepass

Lab Tips:

provides almost unlimited address space and avoids internal network addressing schemes to implement easy management of addresses. controls the traffic into and out of the internal network.

Topology:

Lab Requirements:

1. Two private IP addresses can access the Internet through two public IP addresses by using NAT.

2. Any other private IP addresses cannot access the Internet.

Note:

1. A 2600 series router is used as an edge router.

2. The two public IP addresses are 202.119.249.251 and 202.119.249.252.

Lab Process:

P4S-R(config)#interface fastethernet 0/0

P4S-R(config-if)#ip nat inside     / Specify the inside interface

P4S-R(config-if)#ip address 192.168.1.1 255.255.255.0

P4S-R(config-if)#no shutdown

P4S-R(config-if)#exit

P4S-R(config)#interface S1/0

P4S-R(config-if)#ip nat outside     / Specify the outside interface

P4S-R(config-if)#ip address 202.119.249.251 255.255.255.0

P4S-R(config-if)#no shutdown

P4S-R(config-if)#exit

P4S-R(config)#ip route 192.168.1.0 255.255.255.0 202.119.249.2    / Set the static route directed to the external network

P4S-R(config)#access-list 1 permit 192.168.1.0 0.0.0.255    / Create a standard access list and specify the range of the private network

P4S-R(config)#ip nat pool router 202.119.249.251 202.119.249.252 netmask 255.255.255.0   / Create address pool router and specify the range of the public network

P4S-R(config)#ip nat inside source list 1 pool router





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