Di seguito riporto un esempio di configurazione PPPoE per router Cisco 827 con connessione Telecom Alice 7Mbit.
version 12.3 no service pad service tcp-keepalives-in service tcp-keepalives-out service timestamps debug datetime msec service timestamps log datetime msec service password-encryption ! hostname c827 ! boot-start-marker boot-end-marker ! no aaa new-model ip subnet-zero ip name-server 151.99.125.2 ip name-server 212.216.112.112 ip dhcp excluded-address 192.168.0.100 ip dhcp excluded-address 192.168.0.1 192.168.0.5 ! ip dhcp pool LAN network 192.168.0.0 255.255.255.0 default-router 192.168.0.1 dns-server 208.67.222.222 151.99.0.100 lease 0 12 ! no ip bootp server vpdn enable ! vpdn-group 1 request-dialin protocol pppoe ! interface Ethernet0 description Interfaccia Ethernet0/0 - Lan interna ip address 192.168.0.1 255.255.255.0 no ip redirects ip mtu 1492 ip nat inside ip tcp adjust-mss 1452 no cdp enable hold-queue 100 out ! interface ATM0 description Interfaccia ATM0/0 - Connessione ADSL no ip address no atm ilmi-keepalive bundle-enable dsl operating-mode auto hold-queue 224 in pvc 8/35 pppoe-client dial-pool-number 1 ! ! interface Dialer0 description Interfaccia Dialer0/0 - Alice Mega ADSL 7Mbit/s bandwidth 8096 ip address negotiated ip mtu 1492 ip nat outside encapsulation ppp ip tcp header-compression passive ip tcp adjust-mss 1452 dialer pool 1 dialer-group 1 no cdp enable ppp pap sent-username aliceadsl password 0 aliceadsl ! ip nat translation timeout 420 ip nat translation syn-timeout 40 ip nat translation max-entries 5000 ip nat inside source list 1 interface Dialer0 overload ip classless no ip forward-protocol udp bootps no ip forward-protocol udp tftp no ip forward-protocol udp nameserver no ip forward-protocol udp domain no ip forward-protocol udp time no ip forward-protocol udp netbios-ns no ip forward-protocol udp netbios-dgm no ip forward-protocol udp tacacs ip route 0.0.0.0 0.0.0.0 Dialer0 no ip http server no ip http secure-server ! access-list 1 permit 192.168.0.0 0.0.0.255 banner login ^C || || || || |||| |||| ..:||||||:..:||||||:.. Cisco Systems Inc. - c827 @ 192.168.0.1 *** Accesso alla configurazione del router. Ogni accesso viene loggato ***^C banner prompt-timeout ^C La sessione di lavoro e' scaduta. Per continuare e' necessario riautenticarsi.^C ! line con 0 transport preferred all transport output all stopbits 1 line vty 0 4 access-class 1 in exec-timeout 0 0 logging synchronous login transport preferred all transport input all transport output all ! scheduler max-task-time 5000 sntp server 193.204.114.232 sntp server 193.204.114.233 end