Configure Network Address Translation - Cisco 520-T1 - Small Business Pro SR Secure Router Software Configuration Manual

Chapter 3 Configuring PPP over Ethernet with NAT
Command
Step 5
ppp authentication {protocol1 [protocol2...]}
Example:
Router(config-if)# ppp authentication chap
Router(config-if)#
Step 6
dialer pool number
Example:
Router(config-if)# dialer pool 1
Router(config-if)#
Step 7 dialer-group group-number
Example:
Router(config-if)# dialer-group 1
Router(config-if)#
Step 8 exit
Example:
Router(config-if)# exit
Router(config)#
Step 9 dialer-list dialer-group protocol protocol-name
{permit | deny | list access-list-number |
access-group}
Example:
Router(config)# dialer-list 1 protocol ip
permit
Router(config)#
Step 10
ip route prefix mask {interface-type
interface-number}
Example:
Router(config)# ip route 10.10.25.2
255.255.255.255 dialer 0
Router(config)#

Configure Network Address Translation

Network Address Translation (NAT) translates packets from addresses that match a standard access list,
using global addresses allocated by the dialer interface. Packets that enter the router through the inside
interface, packets sourced from the router, or both are checked against the access list for possible address
translation. You can configure NAT for either static or dynamic address translations.
OL-14210-01
Purpose
Sets the PPP authentication method to Challenge
Handshake Authentication Protocol (CHAP).
For details about this command and additional
parameters that can be set, see the Cisco IOS
Security Command Reference.
Specifies the dialer pool to use to connect to a
specific destination subnetwork.
Assigns the dialer interface to a dialer group
(1–10).
Using a dialer group controls access to
Tip
your router.
Exits the dialer 0 interface configuration.
Creates a dialer list and associates a dial group
with it. Packets are then forwarded through the
specified interface dialer group.
For details about this command and additional
parameters that can be set, see the Cisco IOS Dial
Technologies Command Reference.
Sets the IP route for the default gateway for the
dialer 0 interface.
For details about this command and additional
parameters that can be set, see the Cisco IOS IP
Command Reference, Volume 2; Routing
Protocols.
Cisco Secure Router 520 Series Software Configuration Guide
Configure Network Address Translation
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