Filter
Top Products
3-9
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 1 overload
ip classless (default)
ip route 10.10.25.2 0.255.255.255 dialer 1
!