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Buenas tardes

Tengo la siguiente configuracion de mi ISP:

IP: 187.218.98.81

MS: 255.255.255.252

GW: 187.218.98.81

Vlan: 109

 

En este modem, solo se puede acceder mediante el puerto lan 1 configurando la vlan.

Tengo un router Cisco C891F al cual quiero configurar el puerto de Wan para que reciba el internet del modem, y luego  con nat , distribuir el internet en mi red interna. He configurado las interfaces y el nat pero no consigo hacer que se pueda acceder al internet desde los clientes. Esta es mi configuracion actual:

Current configuration : 2173 bytes
!
! Last configuration change at 17:33:07 UTC Sat Feb 1 2020 by cisco
version 15.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface BRI0
no ip address
encapsulation hdlc
shutdown
isdn termination multidrop
!
interface FastEthernet0
ip address 10.20.240.254 255.255.255.0
ip nat inside
ip virtual-reassembly in
duplex auto
speed auto
!
interface GigabitEthernet0
no ip address
!
interface GigabitEthernet1
no ip address
!
interface GigabitEthernet2
no ip address
!
interface GigabitEthernet3
no ip address
!
interface GigabitEthernet4
no ip address
!
interface GigabitEthernet5
no ip address
!
interface GigabitEthernet6
no ip address
!
interface GigabitEthernet7
no ip address
!
interface GigabitEthernet8
no ip address
ip nat outside
ip virtual-reassembly in
duplex auto
speed auto
!
interface GigabitEthernet8.109
encapsulation dot1Q 109
ip address 187.218.98.81 255.255.255.252
ip nat outside
ip virtual-reassembly in
!
interface Vlan1
no ip address
!
interface Async3
no ip address
encapsulation slip
!
ip forward-protocol nd
ip http server
no ip http secure-server
!
!
ip nat inside source list 100 interface GigabitEthernet8.113 overload
ip route 0.0.0.0 0.0.0.0 187.218.98.82
!
!
access-list 100 permit ip 10.20.240.0 0.0.0.255 any
!
control-plane
!
!
!
mgcp behavior rsip-range tgcp-only
mgcp behavior comedia-role none
mgcp behavior comedia-check-media-src disable
mgcp behavior comedia-sdp-force disable
!
mgcp profile default
!
!
!
!
!
line con 0
login local
no modem enable
line aux 0
line 3
modem InOut
speed 115200
flowcontrol hardware
line vty 0 4
login local
transport input all
line vty 5 15
login local
transport input all
!
scheduler allocate 20000 1000
!
end

de antemano gracias por la ayuda

 

Comments
Carlos Leiton1
Cisco Employee
Cisco Employee

Segun lo que veo, la interface que configuraste para este router es la interface GigabitEthernet8.109

 

Pero en el NAT configuraste otra diferente interface GigabitEthernet8.113

 

Cambiala a GigabitEthernet8.109 en en NAT y prueba otra vez.

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