Cisco: Configuración Cisco 827 con ADSL de Telefónica - RFC 1483

Ejemplo de configuración de un router Cisco 827 con ADSL de Telefónica y encapsulado RFC 1483 (https://tools.ietf.org/html/rfc1483):

no service pad
service password-encryption
!
hostname (nombre del router)
!
enable secret (password del enable)
!
!
ip subnet-zero
no ip domain-lookup
!
!
interface Ethernet0
ip address (IP de la red) (mascara de la red)
ip nat inside
no ip mroute-cache
no cdp enable
!
interface ATM0
no ip address
no ip route-cache
no ip mroute-cache
no atm auto-configuration
no atm ilmi-keepalive
no atm address-registration
no atm ilmi-enable
bundle-enable
dsl operating-mode auto
hold-queue 208 in
!
interface ATM0.1 point-to-point
ip address (ip que te da el proveedor) (mascara)
ip nat outside
no ip route-cache
no ip mroute-cache
pvc 8/32
encapsulation aal5snap
!
!
ip nat inside source list 101 interface ATM0.1 overload
ip classless
ip route 0.0.0.0 0.0.0.0 ATM0.1
no ip http server
!
access-list 101 permit ip any any
!
line con 0
transport input none
stopbits 1
line vty 0 4
password 7 (Password para el telnet)
login
!