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Problema conexion cisco con telefonica IP Dinamica

alexxros

No puedo navegar desde pc conectado a este router, si utilizo ping desde el CLI del router me permite hacer de dos formas,

de forma directa "router>ping google.es" que funciona perfectamente y "router>ping" y entrando en el panel marcando como source la conexion fatethernet i no funciona. alguien sabe porque??

"Inicio código"

interface ATM0

no ip address

no ip redirects

no ip unreachables

no ip proxy-arp

no ip route-cache cef

no ip route-cache

no ip mroute-cache

atm vc-per-vp 64

no atm ilmi-keepalive

pvc 8/32

pppoe-client dial-pool-number 1

!

!

interface Dialer1

ip address negotiated

ip nat outside

ip virtual-reassembly

encapsulation ppp

ip tcp adjust-mss 1452

dialer pool 1

dialer-group 1

no cdp enable

ppp authentication pap chap callin

ppp chap hostname adslppp@telefonicanetpa

ppp chap password 0 adslppp

ppp pap sent-username adslppp@telefonicanetpa password 0 adslppp

ppp ipcp dns request

ppp ipcp wins request

!

interface ATM0

no shutdown

!

ip route 0.0.0.0 0.0.0.0 Dialer1

mezcua

Pegame la configuracion entera y te digo.

Un saludo.

🗨️ 6
alexxros

Con los test y toda la configuracion

ping google.es

Translating "google.es"...domain server (80.58.61.250) [OK]

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 209.85.147.105, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 72/72/72 ms

Router#ping

Protocol [ip]:

Target IP address: google.es

Repeat count [5]:

Datagram size [100]:

Timeout in seconds [2]:

Extended commands [n]: y

Source address or interface: 10.0.0.1

Type of service [0]:

Set DF bit in IP header? [no]:

Validate reply data? [no]:

Data pattern [0xABCD]:

Loose, Strict, Record, Timestamp, Verbose[none]:

Sweep range of sizes [n]:

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 209.85.147.105, timeout is 2 seconds:

Packet sent with a source address of 10.0.0.1

.....

Success rate is 0 percent (0/5)

Router#

Router#sho ip int brie

Any interface listed with OK? value "NO" does not have a valid configuration

Interface IP-Address OK? Method Status Protocol

ATM0 unassigned YES manual up up

Dialer1 79.153.211.241 YES IPCP up up

FastEthernet0 unassigned YES unset up up

FastEthernet1 unassigned YES unset up down

FastEthernet2 unassigned YES unset up down

FastEthernet3 unassigned YES unset up down

NVI0 unassigned NO unset up up

Virtual-Access1 unassigned YES unset up up

Vlan1 10.0.0.1 YES manual up up

Router#sho run

Building configuration...

Current configuration : 1324 bytes

!

version 12.4

no service pad

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption

!

hostname Router

!

boot-start-marker

boot-end-marker

!

logging message-counter syslog

!

no aaa new-model

!

!

dot11 syslog

ip source-route

!

!

ip cef

!

!

!

!

!

!

!

archive

log config

hidekeys

!

!

!

!

!

interface ATM0

no ip address

no ip redirects

no ip unreachables

no ip proxy-arp

no ip route-cache cef

no ip route-cache

no ip mroute-cache

atm vc-per-vp 64

no atm ilmi-keepalive

pvc 8/32

pppoe-client dial-pool-number 1

!

!

interface FastEthernet0

!

interface FastEthernet1

!

interface FastEthernet2

!

interface FastEthernet3

!

interface Vlan1

ip address 10.0.0.1 255.255.255.248

!

interface Dialer1

ip address negotiated

ip nat outside

ip virtual-reassembly

encapsulation ppp

ip tcp adjust-mss 1452

dialer pool 1

dialer-group 1

no cdp enable

ppp authentication pap chap callin

ppp chap hostname adslppp@telefonicanetpa

ppp pap sent-username adslppp@telefonicanetpa password 0 adslppp

ppp ipcp dns request

ppp ipcp wins request

!

ip forward-protocol nd

ip route 0.0.0.0 0.0.0.0 Dialer1

no ip http server

no ip http secure-server

!

!

!

!

!

!

control-plane

!

!

line con 0

no modem enable

line aux 0

line vty 0 4

login

!

scheduler max-task-time 5000

end

🗨️ 5
BocaDePez
BocaDePez

Yo supongo que cuando haces ping sin especificar la interfaz de origen, el sistema toma la IP del Dialer0 (79.153.211.241) y manda los paquetes ICMP hacia Google con dicha IP de origen.

Si los mandase marcados con una IP privada ... ¿cómo van a recibir respuesta? Estaríamos presuponiendo que hace NAT, pero ... el paquete se envía desde el propio router. ¿A cuénto de qué va a crearse una traducción de dirección, si el paquete no ha venido realmente desde otro equipo?

Curioso caso. Yo personalmente ignoro cómo se comporta IOS en ese momento.

🗨️ 4
alexxros

el ejemplo del ping desde la 10.0.0.1 es un ejemplo que desde esa interficie no realiza ninguna conexion al exterior, no se que comando me he dejado pero no me deja conectar a internet desde los pc conectados a la Fast Ethernet.

Muchas Gracias por la ayuda BocaDePez

🗨️ 3
BocaDePez
BocaDePez
🗨️ 2
alexxros
🗨️ 1
BocaDePez
BocaDePez
alexxros

El codigo Funciona, lo adjunto por si alguien tiene problema en el futuro

Router#show run
Building configuration...

Current configuration : 1525 bytes
!
version 12.4
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
boot-start-marker
boot-end-marker
!
logging message-counter syslog
!
no aaa new-model
!
!
dot11 syslog
ip source-route
!
!
ip cef
!
!
!
!
!
!
!
archive
 log config
  hidekeys
!
!
!
!
!
interface ATM0
 no shutdown
 no ip address
 no ip redirects
 no ip unreachables
 no ip proxy-arp
 no ip route-cache cef
 no ip route-cache
 no ip mroute-cache
 atm vc-per-vp 64
 no atm ilmi-keepalive
 pvc 8/32
  pppoe-client dial-pool-number 1
 !
!
interface FastEthernet0
!
interface FastEthernet1
!
interface FastEthernet2
!
interface FastEthernet3
!
interface Vlan1
 ip address 192.168.1.1 255.255.255.0
 no ip redirects
 no ip unreachables
 no ip proxy-arp
 ip flow ingress
 ip nat inside
 ip virtual-reassembly
!
interface Dialer1
 ip address negotiated
 ip nat outside
 ip virtual-reassembly
 encapsulation ppp
 ip tcp adjust-mss 1452
 dialer pool 1
 dialer-group 1
 no cdp enable
 ppp authentication pap chap callin
 ppp chap hostname adslppp@telefonicanetpa
 ppp pap sent-username adslppp@telefonicanetpa password 0 adslppp
 ppp ipcp dns request
 ppp ipcp wins request
!
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 Dialer1
no ip http server
no ip http secure-server
!
ip nat inside source list 101 interface Dialer1 overload
!
access-list 101 permit ip any any
!
!
!
!
control-plane
!
!
line con 0
 no modem enable
line aux 0
line vty 0 4
 login
!
scheduler max-task-time 5000
end

Router#