Datasheet

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Lab – Configuring Port Address Translation (PAT) (Instructor
Version)
Instructor Note: Red font color or Gray highlights indicate text that appears in the instructor copy only.
Topology
Addressing Table
Device
Interface
IP Address
Subnet Mask
Default Gateway
Gateway
G0/1
192.168.1.1
255.255.255.0
N/A
S0/0/1
209.165.201.18
255.255.255.252
N/A
ISP
S0/0/0 (DCE)
209.165.201.17
255.255.255.252
N/A
Lo0
192.31.7.1
255.255.255.255
N/A
PC-A
NIC
192.168.1.20
255.255.255.0
192.168.1.1
PC-B
NIC
192.168.1.21
255.255.255.0
192.168.1.1
PC-C
NIC
192.168.1.22
255.255.255.0
192.168.1.1
Objectives
Part 1: Build the Network and Verify Connectivity
Part 2: Configure and Verify NAT Pool Overload
Part 3: Configure and Verify PAT
Background / Scenario
In the first part of the lab, your company is allocated the public IP address range of 209.165.200.224/29 by
the ISP. This provides the company with six public IP addresses. Dynamic NAT pool overload uses a pool of
IP addresses in a many-to-many relationship. The router uses the first IP address in the pool and assigns