connecting c2821 to dsl line

[eni-co24199]

Hi All ,

I have a Cisco 2821 IOS 12.4 with HWIC-1ADSL card on board .

My intention is to connect that router directly to dsl line of my OTE Greek internet provider, moving the dsl cable actually

connected into modem/router ZYXEL TW263R4. I have all the atm parameters (pvc 8/36) , PPPoE/LLC is ppp protocol  

and ppp chap username/password for authentication is used, 

Is there someone, experienced such a direct connection, can help me in configuration?

many thankx

Salvatore

salvatore.avarino@external.eni.com 

[Peter Paluch · Accepted solution]

Salvatore,

Assuming the DSL card is installed in your HWIC 0 slot and the ATM interface is recognized as ATM0/0/0, the configuration would be similar to this:

interface ATM0/0/0
 no shutdown
 pvc 8/36
  pppoe-client dial-pool-number 1
 exit
exit
!
interface Dialer0
 encapsulation ppp
 ppp chap hostname YOURLOGIN
 ppp chap password YOURPASSWORD
 dialer persistent
 dialer pool 1
 ip address negotiated
 mtu 1492
 ip tcp adjust-mss 1452
 ip nat outside
exit
!
ip route 0.0.0.0 0.0.0.0 Dialer0

Do not forget to configure your internal interfaces with ip nat inside and complete the NAT configuration with the remaining commands (ACL, NAT activation).

Best regards,
Peter

[eni-co24199]

Hi Peter ,

the next 23th I'll configure out the 2821 with this IOS "c2800nm-advipservicesk9-mz.150-1.M3.bin"

I'll tell the results !

many thanks

[eni-co24199]

Hi Peter ,

unfortunately, after plug the dsl cable in to the ADSL Card , the interface does'nt start up, appears

"ATM0/0/0 is down, line protocol is down" ! 

when cable inserted the led CD was green unstable and the led 1ADSL OK green stable .

It seems to me that the card does'nt agree the carrier to establish the phisical link ,

Have you an idea to adjust phisical parameter of the cisco card ?

many thanks

[Leo Laohoo]

after plug the dsl cable in to the ADSL Card , the interface does'nt start up

If you plug an analogue phone to the DSL line do you get a dialtone? 

Can post the output to the command "sh dsl interface"?

[eni-co24199]

Ho Leo ,

the line is pure date dsl not phone , the line has this parameters when a connect the modem of the provider :

SNR 10db (Up,DOWN) and Attenuation 48db in Down, 30 in UP

VPNPEATH#show dsl inte atm0/0/0

ATM0/0/0

Alcatel 20190 chipset information

Line has not yet been activated.

Modem Status:    Down (DMTDSL_DLOAD_1)

DSL Mode:        Unknown

Interrupts:      25178100 (0 spurious)

PHY Access Err:  0

Activations:     0

LED Status:      OFF

LED On Time:     0

LED Off Time:    0

Init FW:         init_AMR-4.0.015_no_bist.bin

Operation FW:    AMR-4.0.015.bin

FW Source:       embedded

DSL: Training log buffer capability is not enabled

[Leo Laohoo]

Line has not yet been activated.
Modem Status:    Down (DMTDSL_DLOAD_1)
DSL Mode:        Unknown

Your DSL line hasn't been provisioned by your telco.  It's a layer 1 issue.  

Init FW:         init_AMR-4.0.015_no_bist.bin

What country is this DSL service?  If this is in Europe, there are HIDDEN firmware of the line card you're using.  Although the codes were made by Cisco, Cisco TAC do not support them but there are a number of people worldwide who took the risk and loaded a higher version of the firmware to improve the noise and attenuation of the DSL line card.   If you are, the files can be found HERE.

[eni-co24199]

I'm in Greek ,

What do you mean "HIDDEN FW" Leo ?

I tried to download the new fw but with no success !

tomorrow I'll try  the command "dsl operating mode itu-dmt" 

rather then adsl2+ or auto, because the poor line .

many thanks

regards

[Leo Laohoo]

What do you mean "HIDDEN FW" Leo ?

Apologize for the late response (been unwell).  

The firmware found in the link I've provided were published by Cisco and hidden (by Cisco).  Cisco doesn't want to support them because they are NOT meant to be used by just about anyone.  They were made because there were cases where a firmware update is required.  But then again, if not specified by Cisco TAC and you, for example, loaded one of the firmwares and line card stops working, the damage is irreversible.  This is the sole reason why the file(s) is/are hidden.

[eni-co24199]

Hi Leo , now the trouble is clear the greek internet (OTE) provider uses

Annex B adsl2+   but  my HWIC-1ADSL is ANNEXA ,

Do you know an upgrading firmware  may fix ? many thanks

many regards

[Leo Laohoo]

Annex B is totally a different hardware.  This is why the module can't detect layer 1.  

Annex B DSL line card is very specific:  B-HWIC-1ADSLI or HWIC-1ADSLI-B/ST

For more information, go HERE.