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4-8
Cisco Secure Router 520 Series Software Configuration Guide
OL-14210-01
Chapter 4 Configuring PPP over ATM with NAT
Configure Network Address Translation
Step 4
ip nat {inside | outside}
Example:
Router(config-if)# ip nat inside
Router(config-if)#
Applies NAT to the Fast Ethernet LAN interface
as the inside interface.
For details about this command and additional
parameters that can be set, as well as information
about enabling static translation, see the
Cisco IOS IP Command Reference, Volume 1 of 4:
Addressing and Services.
Step 5
no shutdown
Example:
Router(config-if)# no shutdown
Router(config-if)#
Enables the configuration changes just made to
the Ethernet interface.
Step 6
exit
Example:
Router(config-if)# exit
Router(config)#
Exits configuration mode for the Fast Ethernet
interface.
Step 7
interface type number
Example:
Router(config)# interface atm 0
Router(config-if)#
Enters configuration mode for the ATM WAN
interface (ATM0) to be the outside interface for
NAT.
Step 8
ip nat {inside | outside}
Example:
Router(config-if)# ip nat outside
Router(config-if)#
Identifies the specified WAN interface as the NAT
outside interface.
For details about this command and additional
parameters that can be set, as well as enabling
static translation, see the
Cisco IOS IP Command
Reference, Volume 1 of 4: Addressing and
Services.
Step 9
no shutdown
Example:
Router(config-if)# no shutdown
Router(config-if)#
Enables the configuration changes just made to
the Ethernet interface.
Command Purpose