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Configure ADSL connection via Alice / Telecom Italia

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Murray Bown
Level 1
Level 1

‎03-11-2011 05:02 AM - edited ‎03-04-2019 11:43 AM

Hi All

I have been trying to configure a 1921 router with a HWIC-DSLSAR module installed. the service is provided by Telecom Italia in Catania, Italy. We have been assigned a static IP address to use and will need to use PPPoE.

Have have tried so many different configs that my head is starting to hurt so does anyone out there have a working config that they could help me with?

The other problem I have is that I am in the UK and I do not have any out of band managment at the moment but I am working on that.

Any help would be greatly appreciated.

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mavespig
Level 3
Level 3
In response to Murray Bown

‎03-16-2011 06:19 AM

You just need to remove "ppp authentication chap pap".

Marco

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Murray Bown
Level 1
Level 1

‎03-16-2011 05:09 AM

So I have got a little bit further on. I have a config and have managed to get the ADSL interface up and I can see the packet count rising both inbound and outbound. It would appear thay my problem is down to the PPP authentication, I have run some debugging and will post the output below along with the interface and dialer config.

interface ATM0/0/0
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
no atm ilmi-keepalive
pvc 8/35
  encapsulation aal5mux ppp dialer
  dialer pool-member 1


interface Dialer0
ip address x.x.x.x 255.255.255.0 (Static IP Provided by ISP)
ip mtu 1492
encapsulation ppp
dialer pool 1
dialer-group 1
ppp authentication chap pap
ppp chap hostname aliceadsl
ppp chap password 7 13041B1B0809052E3828
ppp pap sent-username aliceadsl password 7 082040470A1C04130107

Here is the output from the "debug ppp negotiation"

001038: *Mar 15 16:30:24.327 UTC: Vi2 PPP: Phase is DOWN
001039: *Mar 15 16:30:25.327 UTC: PPP: Alloc Context [272E67CC]
001040: *Mar 15 16:30:25.327 UTC: ppp206 PPP: Phase is ESTABLISHING
001041: *Mar 15 16:30:25.327 UTC: Vi2 PPP: Using dialer call direction
001042: *Mar 15 16:30:25.327 UTC: Vi2 PPP: Treating connection as a callout
001043: *Mar 15 16:30:25.327 UTC: Vi2 PPP: Session handle[6F0000CE] Session id[206]
001044: *Mar 15 16:30:25.327 UTC: Vi2 LCP: Event[OPEN] State[Initial to Starting]
001045: *Mar 15 16:30:25.327 UTC: Vi2 LCP: O CONFREQ [Starting] id 1 len 15
001046: *Mar 15 16:30:25.327 UTC: Vi2 LCP:    AuthProto CHAP (0x0305C22305)
001047: *Mar 15 16:30:25.327 UTC: Vi2 LCP:    MagicNumber 0x60007C60 (0x050660007C60)
001048: *Mar 15 16:30:25.327 UTC: Vi2 LCP: Event[UP] State[Starting to REQsent]
001049: *Mar 15 16:30:27.335 UTC: Vi2 LCP: O CONFREQ [REQsent] id 2 len 15
001050: *Mar 15 16:30:27.335 UTC: Vi2 LCP:    AuthProto CHAP (0x0305C22305)
001051: *Mar 15 16:30:27.335 UTC: Vi2 LCP:    MagicNumber 0x60007C60 (0x050660007C60)
001052: *Mar 15 16:30:27.335 UTC: Vi2 LCP: Event[Timeout+] State[REQsent to REQsent]
001053: *Mar 15 16:30:27.379 UTC: Vi2 LCP: I CONFREQ [REQsent] id 1 len 14
001054: *Mar 15 16:30:27.379 UTC: Vi2 LCP:    AuthProto PAP (0x0304C023)
001055: *Mar 15 16:30:27.379 UTC: Vi2 LCP:    MagicNumber 0x1CF764F8 (0x05061CF764F8)
001056: *Mar 15 16:30:27.379 UTC: Vi2 LCP: O CONFACK [REQsent] id 1 len 14
001057: *Mar 15 16:30:27.379 UTC: Vi2 LCP:    AuthProto PAP (0x0304C023)
001058: *Mar 15 16:30:27.379 UTC: Vi2 LCP:    MagicNumber 0x1CF764F8 (0x05061CF764F8)
001059: *Mar 15 16:30:27.379 UTC: Vi2 LCP: Event[Receive ConfReq+] State[REQsent to ACKsent]
001060: *Mar 15 16:30:27.383 UTC: Vi2 LCP: I CONFACK [ACKsent] id 2 len 15
001061: *Mar 15 16:30:27.383 UTC: Vi2 LCP:    AuthProto CHAP (0x0305C22305)
001062: *Mar 15 16:30:27.383 UTC: Vi2 LCP:    MagicNumber 0x60007C60 (0x050660007C60)
001063: *Mar 15 16:30:27.383 UTC: Vi2 LCP: Event[Receive ConfAck] State[ACKsent to Open]
001064: *Mar 15 16:30:27.399 UTC: Vi2 PPP: Phase is AUTHENTICATING, by both
001065: *Mar 15 16:30:27.399 UTC: Vi2 PAP: Using hostname from interface PAP
001066: *Mar 15 16:30:27.399 UTC: Vi2 PAP: Using password from interface PAP
001067: *Mar 15 16:30:27.399 UTC: Vi2 PAP: O AUTH-REQ id 1 len 24 from "aliceadsl"
001068: *Mar 15 16:30:27.399 UTC: Vi2 CHAP: O CHALLENGE id 1 len 30 from "aliceadsl"
001069: *Mar 15 16:30:27.399 UTC: Vi2 LCP: State is Open
001070: *Mar 15 16:30:27.515 UTC: Vi2 PAP: I AUTH-ACK id 1 len 5
001071: *Mar 15 16:30:27.519 UTC: Vi2 LCP: I TERMREQ [Open] id 2 len 4
001072: *Mar 15 16:30:27.519 UTC: Vi2 LCP: O TERMACK [Open] id 2 len 4
001073: *Mar 15 16:30:27.519 UTC: Vi2 LCP: Event[Receive TermReq] State[Open to Stopping]
001074: *Mar 15 16:30:27.519 UTC: Vi2 PPP DISC: Received LCP TERMREQ from peer
001075: *Mar 15 16:30:27.519 UTC: Vi2 PPP: Sending Acct Event[Down] id[DA]
001076: *Mar 15 16:30:27.519 UTC: Vi2 PPP: Phase is TERMINATING
001077: *Mar 15 16:30:29.511 UTC: Vi2 LCP: Event[Timeout-] State[Stopping to Stopped]
001078: *Mar 15 16:30:29.511 UTC: Vi2 LCP: Event[DOWN] State[Stopped to Starting]
001079: *Mar 15 16:30:29.511 UTC: Vi2 PPP: Phase is DOWN
001080: *Mar 15 16:30:30.511 UTC: PPP: Alloc Context [272E67CC]
001081: *Mar 15 16:30:30.511 UTC: ppp207 PPP: Phase is ESTABLISHING
001082: *Mar 15 16:30:30.511 UTC: Vi2 PPP: Using dialer call direction
001083: *Mar 15 16:30:30.511 UTC: Vi2 PPP: Treating connection as a callout
001084: *Mar 15 16:30:30.511 UTC: Vi2 PPP: Session handle[CF] Session id[207]
001085: *Mar 15 16:30:30.511 UTC: Vi2 LCP: Event[OPEN] State[Initial to Starting]
001086: *Mar 15 16:30:30.511 UTC: Vi2 LCP: O CONFREQ [Starting] id 1 len 15
001087: *Mar 15 16:30:30.511 UTC: Vi2 LCP:    AuthProto CHAP (0x0305C22305)
001088: *Mar 15 16:30:30.511 UTC: Vi2 LCP:    MagicNumber 0x600090A5 (0x0506600090A5)
001089: *Mar 15 16:30:30.511 UTC: Vi2 LCP: Event[UP] State[Starting to REQsent]
001090: *Mar 15 16:30:32.519 UTC: Vi2 LCP: O CONFREQ [REQsent] id 2 len 15
001091: *Mar 15 16:30:32.519 UTC: Vi2 LCP:    AuthProto CHAP (0x0305C22305)
001092: *Mar 15 16:30:32.519 UTC: Vi2 LCP:    MagicNumber 0x600090A5 (0x0506600090A5)
001093: *Mar 15 16:30:32.519 UTC: Vi2 LCP: Event[Timeout+] State[REQsent to REQsent]
001094: *Mar 15 16:30:32.567 UTC: Vi2 LCP: I CONFREQ [REQsent] id 1 len 14
001095: *Mar 15 16:30:32.567 UTC: Vi2 LCP:    AuthProto PAP (0x0304C023)
001096: *Mar 15 16:30:32.571 UTC: Vi2 LCP:    MagicNumber 0x1CF7794E (0x05061CF7794E)
001097: *Mar 15 16:30:32.571 UTC: Vi2 LCP: O CONFACK [REQsent] id 1 len 14
001098: *Mar 15 16:30:32.571 UTC: Vi2 LCP:    AuthProto PAP (0x0304C023)
001099: *Mar 15 16:30:32.571 UTC: Vi2 LCP:    MagicNumber 0x1CF7794E (0x05061CF7794E)
001100: *Mar 15 16:30:32.571 UTC: Vi2 LCP: Event[Receive ConfReq+] State[REQsent to ACKsent]
001101: *Mar 15 16:30:32.571 UTC: Vi2 LCP: I CONFACK [ACKsent] id 2 len 15
001102: *Mar 15 16:30:32.571 UTC: Vi2 LCP:    AuthProto CHAP (0x0305C22305)
001103: *Mar 15 16:30:32.571 UTC: Vi2 LCP:    MagicNumber 0x600090A5 (0x0506600090A5)
001104: *Mar 15 16:30:32.571 UTC: Vi2 LCP: Event[Receive ConfAck] State[ACKsent to Open]
001105: *Mar 15 16:30:32.583 UTC: Vi2 PPP: Phase is AUTHENTICATING, by both
001106: *Mar 15 16:30:32.583 UTC: Vi2 PAP: Using hostname from interface PAP
001107: *Mar 15 16:30:32.583 UTC: Vi2 PAP: Using password from interface PAP
001108: *Mar 15 16:30:32.583 UTC: Vi2 PAP: O AUTH-REQ id 1 len 24 from "aliceadsl"
001109: *Mar 15 16:30:32.583 UTC: Vi2 CHAP: O CHALLENGE id 1 len 30 from "aliceadsl"
001110: *Mar 15 16:30:32.583 UTC: Vi2 LCP: State is Open
001111: *Mar 15 16:30:32.683 UTC: Vi2 PAP: I AUTH-ACK id 1 len 5
001112: *Mar 15 16:30:32.683 UTC: Vi2 LCP: I TERMREQ [Open] id 2 len 4
001113: *Mar 15 16:30:32.683 UTC: Vi2 LCP: O TERMACK [Open] id 2 len 4
001114: *Mar 15 16:30:32.683 UTC: Vi2 LCP: Event[Receive TermReq] State[Open to Stopping]
001115: *Mar 15 16:30:32.683 UTC: Vi2 PPP DISC: Received LCP TERMREQ from peer
001116: *Mar 15 16:30:32.683 UTC: Vi2 PPP: Sending Acct Event[Down] id[DB]
001117: *Mar 15 16:30:32.683 UTC: Vi2 PPP: Phase is TERMINATING

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mavespig
Level 3
Level 3
In response to Murray Bown

‎03-16-2011 06:01 AM

Hi Murray,

you configure the dialer interface with "ppp authentication chap pap".

This means that your router will challenge the T.I. server to authenticate.

Usually, only the CPE must provide the credentials, not the server.

With "ppp authentication chap pap" you are asking the server to provide its credentials, and the server rejects this request and close the PPP negotiation:

001112: *Mar 15 16:30:32.683 UTC: Vi2 LCP: I TERMREQ [Open] id 2 len 4     (I stands for input, i.e. this is a termination request sent by the server).

Can you remove ppp authentication and collect the debugs again?

Hope this helps

Marco

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Murray Bown
Level 1
Level 1
In response to mavespig

‎03-16-2011 06:13 AM

All of this?

ppp authentication chap pap
ppp chap hostname aliceadsl
ppp chap password 7 13041B1B0809052E3828
ppp pap sent-username aliceadsl password 7 082040470A1C04130107

Or just,

ppp authentication chap pap

Murray

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mavespig
Level 3
Level 3
In response to Murray Bown

‎03-16-2011 06:19 AM

You just need to remove "ppp authentication chap pap".

Marco

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