Cisco Systems 520 series manual Reference, Volume 1 of 4 Addressing

Chapter 4 Configuring PPP over ATM with NAT

Configure Network Address Translation

	Command	Purpose
Step 4
	ip nat {inside outside}	Applies NAT to the Fast Ethernet LAN interface
		as the inside interface.
	Example:	For details about this command and additional
	Router(config-if)# ip nat inside	parameters that can be set, as well as information
	Router(config-if)#	about enabling static translation, see the
		Cisco IOS IP Command Reference, Volume 1 of 4:
		Addressing and Services.
Step 5
	no shutdown	Enables the configuration changes just made to
		the Ethernet interface.
	Example:
	Router(config-if)# no shutdown
	Router(config-if)#
Step 6
	exit	Exits configuration mode for the Fast Ethernet
		interface.
	Example:
	Router(config-if)# exit
	Router(config)#
Step 7
	interface type number	Enters configuration mode for the ATM WAN
		interface (ATM0) to be the outside interface for
	Example:	NAT.
	Router(config)# interface atm 0
	Router(config-if)#
Step 8
	ip nat {inside outside}	Identifies the specified WAN interface as the NAT
		outside interface.
	Example:	For details about this command and additional
	Router(config-if)# ip nat outside	parameters that can be set, as well as enabling
	Router(config-if)#	static translation, see the Cisco IOS IP Command
		Reference, Volume 1 of 4: Addressing and
		Services.
Step 9
	no shutdown	Enables the configuration changes just made to
		the Ethernet interface.
	Example:
	Router(config-if)# no shutdown
	Router(config-if)#

Cisco Secure Router 520 Series Software Configuration Guide

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