Cisco Systems OL-6426-02 manual ATM0

Chapter 4 Configuring PPP over ATM with NAT

Configuration Example

BETA DRAFT - CISCO CONFIDENTIAL

Note Commands marked by “(default)” are generated automatically when you run the show running-configcommand.

!

interface Vlan1

ip address 192.168.1.1 255.255.255.0 ip nat inside

ip virtual-reassembly (default)

!

interface ATM0 no ip address ip nat outside

ip virtual-reassembly no atm ilmi-keepalive pvc 8/35

encapsulation aal5mux ppp dialer dialer pool-member 1

!

dsl operating-mode auto

!

interface Dialer0

ip address negotiated ip mtu 1492 encapsulation ppp dialer pool 1 dialer-group 1

ppp authentication chap

!

ip classless (default)

!

ip nat pool pool1 192.168.1.0 192.168.2.0 netmask 0.0.0.255 ip nat inside source list 1 interface Dialer0 overload

!

access-list 1 permit 192.168.1.0 0.0.0.255 dialer-list 1 protocol ip permit

ip route 10.10.25.2 0.255.255.255 dialer 0

!

Verifying Your Configuration

Use the show ip nat statistics command in privileged EXEC mode to verify the PPPoA client with NAT configuration. You should see verification output similar to the following example:

Router# show ip nat statistics

Total active translations: 0 (0 static, 0 dynamic; 0 extended) Outside interfaces:

ATM0

Inside interfaces: Vlan1

Hits: 0 Misses: 0

CEF Translated packets: 0, CEF Punted packets: 0

Expired translations: 0 Dynamic mappings:

-- Inside Source

[Id: 1] access-list 1 interface Dialer0 refcount 0

Queued Packets: 0

Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide

4-12 OL-6426-02