Paradyne CSU, DSU NAT Configuration Example, NAT Mapping Public IP Addresses Private IP Addresses

5. Configuring the FrameSaver SLV Router

NAT Configuration Example

NAT Example
Public	Public IP	10.1.3.1
	Addresses
Network

FrameSaver SLV

Router

Server

10.1.1.1

02-17297

In this NAT example:

NAT is used for one-to-one mapping of addresses.

The Ethernet interface is in the private address space and the network interface is in public address space. With NAT enabled, a single global PVC is used to access the public network.

When using NAT, the network interface must be numbered because the Ethernet interface is configured within the private address space.

The next hop router (default gateway) for the clients is the Ethernet IP address

Tof the router, 10.1.3.1.

There are four private IP addresses configured on the Ethernet side of the router with NAT static mappings to four public IP addresses.

NAT Mapping Public IP Addresses	Private IP Addresses
192.128.22.28	10.1.3.2
192.128.22.29	10.1.3.3
192.128.22.30	10.1.3.4
192.128.22.31	10.1.3.5

5-6 September 2002 9128-A2-GB20-80