Configure cisco 1400 series rounter for ADSL

[bigufo8]

Hello,

I am trying to configure cisco router for my ADSL use home. I have been allocated static IP address range. I need to setup the router without any NAT.

On the ethernet0 interface i have used the following ip address:

IP address 82.68.96.x 255.255.x.x
no IP NAT inside
no Shutdown

I have enabled the IP routing

I am unsure how to configure ATM0 for ADSL service. Any help in configuring ADSL would be helpful?

Thank you - cheers SK

 

[lambent]

You may have the following information given by the ISP:

Username: whoever@whatever.net
Password: whatever
IP Address: 202.202.202.202/32
Service Type: PPP

Useful information:
PVC Information: VPI=8, VCI=35
Incoming mail: pop.whatever.net
Outgoing mail: smtp.whatever.net

Then you should have the following ATM and dialer configuration:

ip dhcp excluded?address 10.0.0.1 10.0.0.30
!
ip dhcp pool <pool_name>
network 10.0.0.0 255.255.255.0
default?router 10.0.0.1
!
interface Ethernet0
description Internal LAN
ip address 10.0.0.1 255.255.255.0
ip nat inside
!
interface ATM0
description ADSL
no ip address
atm vc?per?vp 4096
no atm ilmi?keepalive
pvc 8/35
encapsulation aal5mux ppp dialer
dialer pool?member 1
!
interface Dialer0
ip address 202.202.202.202 255.255.255.255
ip nat outside
encapsulation ppp
dialer pool 1
dialer?group 1
ppp authentication chap callin
ppp chap hostname whoever@whatever.net
ppp chap password whatever
!
ip nat inside source list 101 interface Dialer0 overload
ip route 0.0.0.0 0.0.0.0 Dialer0
!
access?list 101 permit ip 10.0.0.0 0.255.255.255 any
dialer?list 1 protocol ip permit
!

If you don't need NAT (say you want to build VPN across the Internet), then just remove the "ip nat" commands and the access-list 101.

Also better double confirm with the ISP whether they're using CHAP or PAP.

 

[bigufo8]

Hi lambent,

Thank you for posting an example configuration, but I am having issue with Dialer and Virtual-Template. Here is the my config from router which I try to follow your example.

Note:

encapsulation aal5mux ppp dialer --> I do not get "dialer but have option for "Virtual-Template".
dialer pool-member 1 ---> I do not have this option

Anyway here is the config: {Any further help would be great- Thank you}

Router#show run
Building configuration...

Current configuration:
!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Router
!
!
!
!
!
!
ip subnet-zero
!
!
!
process-max-time 200
!
interface Ethernet0
description Internal LAN
ip address 10.0.0.xx 255.0.0.0
no ip directed-broadcast
ip nat inside
!
interface Virtual-Template1
ip address 82.68.96.xx 255.255.xxx.xxx
no ip directed-broadcast
ip nat outside
ppp authentication chap callin
ppp chap hostname "usernamexxx"
ppp chap password 7 "passwordxx"
!
interface ATM0
description ADSL
no ip address
no ip directed-broadcast
atm vc-per-vp 4096
no atm ilmi-keepalive
pvc 0/38
encapsulation aal5mux ppp Virtual-Template1
!
!
interface Dialer0
no ip directed-broadcast
no cdp enable
!
ip nat inside source list 101 interface Virtual-Template1 overload
ip classless
ip route 0.0.0.0 0.0.0.0 Virtual-Template1
no ip http server
!
access-list 101 permit ip 10.0.0.0 0.255.255.255 any
dialer-list 1 protocol ip permit
!
line con 0
transport input none
line vty 0 4
!
end

Router#exit

 

[lambent]

which model of 1400 router are you using? And what information did your ISP give you?

Btw is your ATM interface "up up"? If it's up then try to turn on "debug ppp authen" and check for error msg.