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Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide
OL-6426-02
Chapter 3 Configuring PPP over Ethernet with NAT
Configuration Example
For complete information on the NAT commands, see the Cisco IOS Release 12.3 documentation set.
For more general information on NAT concepts, see
Appendix B, “Concepts.”
Configuration Example
The following configuration example shows a portion of the configuration file for the PPPoE scenario
described in this chapter.
The VLAN interface has an IP address of 192.168.1.1 with a subnet mask of 255.255.255.0. NAT is
configured for inside and outside.
Note
Since the VLAN interface is on LAN, we have used a private IP address.
Note
Commands marked by “
(default)
” are generated automatically when you run the
show running-config
command.
!
vpdn enable
vpdn-group 1
request-dialin
protocol pppoe
!
interface vlan 1
ip address 192.168.1.1 255.255.255.0
no ip directed-broadcast (
default
)
ip nat inside
!
interface FastEthernet 0
ip address 192.1.12.2 255.255.255.0
no ip directed-broadcast (
default
)
ip nat outside
!
interface dialer 1
ip address negotiated
ppp authentication chap
dialer pool 1
dialer-group 1
!
dialer-list 1 protocol ip permit
ip nat inside source list 1 interface dialer 0 overload
ip classless (
default
)
ip route 10.10.25.2 0.255.255.255 dialer 0
!
Summary of Contents for 1801
Page 21: ...P A R T 1 Getting Started ...
Page 22: ......
Page 39: ...P A R T 2 Configuring Your Router for Ethernet and DSL Access ...
Page 40: ......
Page 119: ...P A R T 3 Configuring Additional Features and Troubleshooting ...
Page 120: ......
Page 157: ...P A R T 4 Reference Information ...
Page 158: ......