07-24-2007 04:43 AM - edited 03-03-2019 06:00 PM
Hi guys, first up I would like to say thanks for sorting out my dhcp issues in the getting started with LANS part of the forum!
I have an issue now with my adsl connection. I have set up the dialer 0 and atm 0 interfaces according to this guide:
http://www.cisco.com/en/US/tech/tk175/tk15/technologies_configuration_example09186a008071a601.shtml
and have supplied my ISP settings:
VPI 0
VCI 38
Encapsulation VC/MUX or VC Based
Protocol PPPoA
Mode G.DMT
Authentication CHAP
Preferred MTU 1500 (or as close to as possible)
I have supplied my config as txt file.
Again I'm very new to Cisco so please take things step by step.
Many thanks!
07-24-2007 04:46 AM
Sorry....... issue is that it's not connecting to ISP and I have no internet access :-(
07-24-2007 05:25 AM
Hi,
please send output of "show atm pvc 0/38" and "term mon" "debug ppp neg".
07-24-2007 05:41 AM
07-24-2007 05:46 AM
Hi, PVC 0/38 does not receive packets. Please check that you have the right number, and the ADSL port is connected, do check "show dsl interface". And yes, "term mon" enables the telnet terminal to monitor debug and other system events.
07-24-2007 06:07 AM
It says: line has not been activated yet
I didn't put any config into the atm0 interface interms of pvc, chap authentication, mtu, and line encapsulation, as all my ISP data went to the dialer0 interface which I thought dialled through the atm0. If I am mistaken then will I have to rebuild the atm0 interface with the info from the dialer0 interface?
07-24-2007 07:38 AM
Ok rectifying my statement since I think I'm getting myself confused: "I didn't put any config into the atm0 interface interms of pvc, chap authentication, mtu, and line encapsulation"
I used these commands:
Router(config)#interface atm 0
Router(config-if)#pvc
Router(config-if-atm-vc)#encapsulation aal5mux ppp dialer
Router(config-if-atm-vc)#dialer pool-member 1
Router(config-if-atm-vc)#no shut
Router(config-if-atm-vc)#end
Router#configure terminal
Router(config)#interface dialer 1
Router(config-if)#ip address negotiated
Router(config-if)#no ip directed-broadcast
Router(config-if)#ip nat outside
Router(config-if)#encapsulation ppp
Router(config-if)#dialer pool 1
Router(config-if)#ppp chap hostname
Router(config-if)#ppp chap password
#Router(config-if)#ppp pap sent-username
Router(config-if)#end
Router#configure terminal Router(config)#ip route 0.0.0.0 0.0.0.0 dialer1 Router(config)#end
Router#configure terminal Router(config)#ip nat inside source list 1 interface dialer1 overload
As for my line, it works fine with an ordinary consumer modem - so I really don't know where the problem is :-(
07-24-2007 07:43 AM
Hi, that is all good, you also need "ppp authentication chap callin" under "in dialer1" and "ip nat inside" under interface vlan1, anyway, check output of "show int atm0" and "show dsl interface" to check line up and passing a packets.
07-24-2007 08:02 AM
I used the command: router(config)#interface dialer 0
router(conf-if)#ppp authentication chap callin
but it still doesn't work after switching my line from old router - it keeps saying line protocol is down?
07-24-2007 08:20 AM
What I'm telling you is that unless line is up as shown by "shot int atm0" and "show dsl interface", nothing will work. It may be a compatibility problem with the DSLAM. There is firmware available to correct this at:
ftp://ftp.cisco.com/pub/access/800/
Hope this helps, please rate post if it does!
07-24-2007 08:51 AM
Thanks for that, sorry for being slow!
However the link you gave me keeps coming out with "connection refused"?
07-24-2007 09:04 AM
No problem. ASIK, the cisco ftp is working fine.
07-24-2007 09:13 AM
Do I have to be subscribed specially for it (as in not guest access)? as I've just tried from 2 web browsers and Filezilla FTP app and same prob..
07-24-2007 09:29 AM
Ignore last post I got in - I think my computers playing up. Sorry!
07-24-2007 09:29 AM
No subscription necessary for that URL that is public and free.
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