ho questo routerino abbastanza vecchio(Versione Ios S14C-12.05T Cisco 1400 Series) che con una vecchia adsl con protocollo rfc1483 non ha mai dato problemi con questa config:
version 12.1
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Frank
!
enable secret 5 password
!
ip subnet-zero
ip name-server 213.234.132.130
ip name-server 194.185.88.5
!
ip dhcp pool Frank
network 10.0.0.0 255.255.255.0
dns-server 213.234.132.130 194.185.88.5
default-router 10.0.0.138
!
interface Ethernet0
ip address 10.0.0.138 255.255.255.0
ip nat inside
hold-queue 100 out
!
interface ATM0
no ip address
atm vc-per-vp 64
no atm ilmi-keepalive
!
interface ATM0.1 point-to-point
ip address 62.xx.xx.xx 255.255.255.192
ip nat outside
pvc 8/35
encapsulation aal5snap
!
ip nat inside source list 1 interface ATM0.1 overload
ip classless
ip route 0.0.0.0 0.0.0.0 ATM0.1
no ip http server
!
access-list 1 permit 10.0.0.0 0.0.0.255
!
line con 0
exec-timeout 120 0
transport input none
stopbits 1
line vty 0 4
exec-timeout 120 0
password frank
login
length 0
!
scheduler max-task-time 5000
end
Solo che da qualche giorno ho la mitica Adsl Ngi solo che con questo router non solo riuscito a configurarlo ho fatto questa base di config:
version 12.1
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname r-frank
!
enable secret 5 $1$IC/OQYpqI.qUm91S.
enable password password
!
!
!
!
!
ip subnet-zero
ip name-server 212.xx.xx.xx
ip name-server 212.xx.xx.xx
ip dhcp excluded-address 192.168.1.254
!
ip dhcp pool Locale
network 192.168.1.0 255.255.255.0
ip nat inside
!
interface ATM0
no ip address
atm vc-per-vp 64
no atm ilmi-keepalive
pvc 8/35
encapsulation aal5snap
!
!
interface Dialer0
ip address negotiated
ip nat outside
encapsulation ppp
dialer pool 1
dialer-group 1
ppp pap sent-username user password 7 password
!
ip nat inside source list 1 interface Dialer0 overload
ip classless
ip route 0.0.0.0 0.0.0.0 Dialer0
no ip http server
!
access-list 1 permit 192.168.1.0 0.0.0.255
dialer-list 1 protocol ip permit
!
line con 0
transport input none
line vty 0 4
password password
login
!
end
Il Led Carrier si illumina, ma non navigo

"protocol ppp dialer"
"dialer pool-member 1"
"ip domain name dominio.it"
Grazie in Anticipo e Buone Vacanze