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ADSL connection

egeorgopoulos
Level 1
Level 1

Dear all,

I would like to inform me how to check the adsl configuration below, that works. I enter 'show ip route' and get external IPs, but I am not sure whether the router (837) needs more configuration for the completion of the dsl. I want also to configure the ethernet or fast ethernet to connect my laptop.

Cisco#sh startup-config

Using 1432 out of 131072 bytes

!

version 12.3

no service pad

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption

!

hostname Cisco

!

!

no aaa new-model

ip subnet-zero

!

!

ip audit notify log

ip audit po max-events 100

vpdn enable

!

vpdn-group pppoe

request-dialin

  protocol pppoe

!

no ftp-server write-enable

!

!

!

!

!

!

!

interface Ethernet0

ip address 192.168.1.25 255.255.255.0

ip nat inside

hold-queue 100 out

!

interface ATM0

no ip address

no atm ilmi-keepalive

dsl operating-mode auto

hold-queue 224 in

!

interface ATM0.1 point-to-point

pvc 8/35

  pppoe-client dial-pool-number 1

!

!

interface FastEthernet1

no ip address

duplex auto

speed auto

!

interface FastEthernet2

no ip address

shutdown

duplex auto

speed auto

!

interface FastEthernet3

no ip address

shutdown

duplex auto

speed auto

!

interface FastEthernet4

no ip address

shutdown

duplex auto

speed auto

!

interface Dialer1

ip address negotiated

ip mtu 1492

ip nat outside

encapsulation ppp

dialer pool 1

ppp authentication pap callin

ppp pap sent-username ########### password 0 ###########

!

ip nat inside source list 1 interface Dialer1 overload

ip classless

ip route 0.0.0.0 0.0.0.0 Dialer1

no ip http server

no ip http secure-server

!

access-list 1 permit 192.168.1.0 0.0.0.255

!

line con 0

no modem enable

line aux 0

line vty 0 4

password ######

login

!

scheduler max-task-time 5000

!

end

4 Replies 4

Giuseppe Larosa
Hall of Fame
Hall of Fame

Hello Egeorgopoluos,

configuration looks like correct.

To use the additional FAST ethernet ports: they are treated like switch ports that belong to vlan1.

So the SVI vlan1 has to be configured:

int Vlan 1

ip address 192.168.2.1 255.255.255.0

! the SVI has to be explicitly enabled with no shut:

no shut

ip nat inside

add  the following line to ACL 1:

access-list 1 permit 192.168.2.0 0.0.0.255

this should allow you to connect the PC to one switch port on the router like Fas1 and to access the internet

Hope to help

Giuseppe

I cannot see any virtual interface as you mentioned above. The only thing I see is the below (BVI) and when I try to enter it I take the below message:

interface bVI 1
Integrated Routing and Bridging is not configured!

% No interface specified for interface_command

BVI's are used by Wireless Access Points and 837 does not support this either.

do you know how to overcome this problem with the vlan interface ?

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