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Cisco 867w ADSL Configuration BT

Posted on 2012-03-29
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Last Modified: 2012-06-27
Dear Sirs,

I have configured cisco 800 series Router (867w). but when i ping to the dialer interface ip it is not pinging..
Secondly i need proper configuration specific for Cisco 867w and BT Adsl uk standard...although i have configured the router the atm0 and dialer0 is goin up and down and it is not connecting at all to the internet.

so i need specific configuration...for this sinario.

Many Thanks.
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Question by:6300ac
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Craig Beck earned 500 total points
ID: 37786074
Try this...

conf t
interface ATM0
 no ip address
 no atm ilmi-keepalive
 dsl operating-mode auto 
 pvc 0/38 
  encapsulation aal5mux ppp dialer
  dialer pool-member 1
 !
!
interface FastEthernet0
 ip address 192.168.0.1 255.255.255.0
 ip nat inside
 ip virtual-reassembly
 speed auto
!
interface Dialer0
 ip address negotiated
 ip accounting output-packets
 ip nat outside
 ip virtual-reassembly
 encapsulation ppp
 dialer pool 1
 dialer idle-timeout 0
 dialer persistent
 dialer-group 1
 no cdp enable
 ppp authentication chap callin
 ppp chap hostname <yourusername>
 ppp chap password <yourpassword>
!
ip route 0.0.0.0 0.0.0.0 Dialer0
!
ip nat inside source list 100 interface Dialer0 overload
!
access-list 100 permit ip 192.168.0.0 0.0.0.255 any
end

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That should get you going.

Bear in mind there are problems with Cisco's 800 series routers and UK ADSL.  You need to ensure that the ADSL firmware on the router is at least V4.0.15 or you might have to set the ATM modulation to ITU-DMT (ADSL1) only to stabilize the line.
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