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Dynamic DSL on cisco router 877

Kevin Xau
Level 1
Level 1

Hi,

I have one Dynamic DSL line, this line plug to the Dlink router can work properly. But for some reason, we need to change to the cisco 877 router,  when I conenct this line to the cisco router, it cannot work, the configuration seems incorrect. Below is the configuration:

version 12.3

no service pad

service tcp-keepalives-in

service tcp-keepalives-out

service timestamps debug datetime msec localtime show-timezone

service timestamps log datetime msec localtime show-timezone

service password-encryption

service sequence-numbers

!

hostname router-877

!

boot-start-marker

boot-end-marker

!

!

no aaa new-model

!

username admin password 7 5sg234kjasjdb

!

ip subnet-zero

no ip source-route

ip cef

!

!

!

!

no ip bootp server

!

!

interface ATM0

no ip address

no ip redirects

no ip unreachables

no ip proxy-arp

ip route-cache flow

no atm ilmi-keepalive

dsl operating-mode auto

!

interface ATM0.1 point-to-point

pvc 0/100

  pppoe-client dial-pool-number 1

!

!

interface Vlan1

description LAN

ip address 172.16.0.200 255.255.255.0

no ip redirects

no ip unreachables

no ip proxy-arp

ip nat inside

ip virtual-reassembly

ip tcp adjust-mss 1412

!

interface Dialer1

description Internet DSL access

ip address negotiated

no ip redirects

no ip unreachables

no ip proxy-arp

ip mtu 1452

ip nat outside

ip virtual-reassembly

encapsulation ppp

dialer pool 1

dialer-group 1

no cdp enable

ppp authentication chap pap callin

ppp chap hostname company@abc.net

ppp chap password 7 6tmsadvdvk3352gd

ppp pap sent-username company@abc.net password 7 6tmsadvdvk3352gd

!

ip classless

ip route 0.0.0.0 0.0.0.0 Dialer1

!

!

ip nat inside source list 10 interface Dialer1 overload

!

access-list 10 permit 172.16.0.0 0.0.0.255

!

line con 0

line aux 0

line vty 0 4

!

!

end

Please advice where I configure wrong. Thanks

17 Replies 17

Hi,

The internet line is working fine with Dlink router, so it will not be the pinout of DSL wall jack. And the curious thing is the CD led is on although the ATM interface is down/down @@

hi,

contact your ISP and check if the 877 is supported on their DSLAM.

your 877 firmware could also be not supported or updated.

Hi,

I have asked my ISP - Singtel, cisco 877 is supported on their DSLAM.

Maybe I need to update the firmware for the cisco 877.

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