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Cisco 1841 Config Problems with BT Broadband

 
 
cwcrawley
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Posts: n/a
 
      01-25-2007
I'm setting up a different 1841 for another client with the following
config and it just doesn't want to Connect - I've been looking at it so
long the last hour or two, that I can't see the wood for the trees....

Internet/Dialer Config is as follows:

--------------------------------------------------------------------------

interface ATM0/0/0
no ip address
no atm ilmi-keepalive
dsl operating-mode auto
pvc 0/38
encapsulation aal5mux ppp dialer
dialer pool-member 1
!

interface Dialer0
ip address negotiated
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
ppp chap hostname yyyyyyy
ppp chap password 0 xxxxx
!

ip route 0.0.0.0 0.0.0.0 Dialer0
--------------------------------------

the DSL signal locks (or at least the LED on the unit tells me it
does).... The Following Debug Information May Help:

debug atm events
---------------------
*Jan 25 12:44:13.887: ATM0/0/0 check_lockup: scc = 0, output_qcount =
0, heads
)110, 110,
addr = (s)0x0, 0x0, count (s)110, 110
*Jan 25 12:44:13.887: ATM0/0/0 check_lockup: scc = 1, output_qcount =
0, heads
)55, 55,
addr = (s)0x0, 0x0, count (s)55, 55
*Jan 25 12:44:23.871: ATM0/0/0 check_lockup: scc = 0, output_qcount =
0, heads
)110, 110,
addr = (s)0x0, 0x0, count (s)110, 110
*Jan 25 12:44:23.871: ATM0/0/0 check_lockup: scc = 1, output_qcount =
0, heads
)55, 55,
addr = (s)0x0, 0x0, count (s)55, 55
*Jan 25 12:44:29.203: ATM0/0/0 dslsar_tx_status_ind(64C19A9C). vcd: 5
NOT IN USE
, Status=932505, tStamp: 82B725.
*Jan 25 12:44:29.231: ATM(ATM0/0/0): vci 0, vpi 0, index 0 is incorrect

*Jan 25 12:44:31.239: ATM(ATM0/0/0): vci 0, vpi 0, index 0 is incorrect

*Jan 25 12:44:33.243: ATM(ATM0/0/0): vci 0, vpi 0, index 0 is incorrect

*Jan 25 12:44:33.799: ATM0/0/0 check_lockup: scc = 0, output_qcount =
0, heads
)110, 113,
addr = (s)0x0, 0x0, count (s)110, 113
*Jan 25 12:44:33.799: ATM0/0/0 check_lockup: scc = 1, output_qcount =
0, heads
)55, 55,

debug ppp negotation / debug ppp authentication
-----------------------------------------------------------
*Jan 25 12:45:19.379: Vi2 LCP: TIMEout: State Listen
*Jan 25 12:45:19.379: Vi2 PPP: Authorization required
*Jan 25 12:45:19.379: Vi2 LCP: O CONFREQ[Listen] id 121 len 15
*Jan 25 12:45:19.379: Vi2 LCP: AuthProto CHAP (0x0305C22305)
*Jan 25 12:45:19.379: Vi2 LCP: MagicNumber 0x19611144 (0x050619611144)
*Jan 25 12:45:21.395: Vi2 LCP: TIMEout: State REQsent
*Jan 25 12:45:21.395: Vi2 LCP: O CONFREQ [REQsent] id 122 len 15
*Jan 25 12:45:21.395: Vi2 LCP: AuthProto CHAP (0x0305C22305)
*Jan 25 12:45:21.395: Vi2 LCP: MagicNumber 0x19611144 (0x050619611144)
*Jan 25 12:45:23.411: Vi2 LCP: TIMEout: State REQsent
*Jan 25 12:45:23.411: Vi2 LCP: O CONFREQ [REQsent] id 123 len 15
*Jan 25 12:45:23.411: Vi2 LCP: AuthProto CHAP (0x0305C22305)
*Jan 25 12:45:23.411: Vi2 LCP: MagicNumber 0x19611144 (0x050619611144)
*Jan 25 12:45:25.427: Vi2 LCP: TIMEout: State REQsent
*Jan 25 12:45:25.427: Vi2 LCP: O CONFREQ [REQsent] id 124 len 15
*Jan 25 12:45:25.427: Vi2 LCP: AuthProto CHAP (0x0305C22305)
*Jan 25 12:45:25.427: Vi2 LCP: MagicNumber 0x19611144 (0x050619611144)
*Jan 25 12:45:27.443: Vi2 LCP: TIMEout: State REQsent
*Jan 25 12:45:27.443: Vi2 LCP: O CONFREQ [REQsent] id 125 len 15
*Jan 25 12:45:27.443: Vi2 LCP: AuthProto CHAP (0x0305C22305)
*Jan 25 12:45:27.443: Vi2 LCP: MagicNumber 0x19611144 (0x050619611144)
*Jan 25 12:45:29.459: Vi2 LCP: TIMEout: State REQsent
*Jan 25 12:45:29.459: Vi2 LCP: O CONFREQ [REQsent] id 126 len 15
*Jan 25 12:45:29.459: Vi2 LCP: AuthProto CHAP (0x0305C22305)
*Jan 25 12:45:29.459: Vi2 LCP: MagicNumber 0x19611144 (0x050619611144)
*Jan 25 12:45:31.475: Vi2 LCP: TIMEout: State REQsent
*Jan 25 12:45:31.475: Vi2 LCP: O CONFREQ [REQsent] id 127 len 15
*Jan 25 12:45:31.475: Vi2 LCP: AuthProto CHAP (0x0305C22305)
*Jan 25 12:45:31.475: Vi2 LCP: MagicNumber 0x19611144 (0x050619611144)
*Jan 25 12:45:33.491: Vi2 LCP: TIMEout: State REQsent
*Jan 25 12:45:33.491: Vi2 LCP: O CONFREQ [REQsent] id 128 len 15
*Jan 25 12:45:33.491: Vi2 LCP: AuthProto CHAP (0x0305C22305)
*Jan 25 12:45:33.491: Vi2 LCP: MagicNumber 0x19611144 (0x050619611144)
*Jan 25 12:45:35.507: Vi2 LCP: TIMEout: State REQsent
*Jan 25 12:45:35.507: Vi2 LCP: O CONFREQ [REQsent] id 129 len 15
*Jan 25 12:45:35.507: Vi2 LCP: AuthProto CHAP (0x0305C22305)
*Jan 25 12:45:35.507: Vi2 LCP: MagicNumber 0x19611144 (0x050619611144)
*Jan 25 12:45:37.523: Vi2 LCP: TIMEout: State REQsent
*Jan 25 12:45:37.523: Vi2 LCP: O CONFREQ [REQsent] id 130 len 15
*Jan 25 12:45:37.523: Vi2 LCP: AuthProto CHAP (0x0305C22305)
*Jan 25 12:45:37.523: Vi2 LCP: MagicNumber 0x19611144 (0x050619611144)
*Jan 25 12:45:39.539: Vi2 LCP: TIMEout: State REQsent
*Jan 25 12:45:39.539: Vi2 LCP: State is Listen


Anyone point me in the right direction please?

Cheers,

C.

 
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AM
Guest
Posts: n/a
 
      01-25-2007
cwcrawley wrote:
> Anyone point me in the right direction please?
>


Post the "sh dsl int atm 0/0/0" output.

Alex.
 
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Al
Guest
Posts: n/a
 
      01-25-2007
cwcrawley wrote:
> I'm setting up a different 1841 for another client with the following
> config and it just doesn't want to Connect - I've been looking at it so
> long the last hour or two, that I can't see the wood for the trees....
>
> Internet/Dialer Config is as follows:
>
> --------------------------------------------------------------------------
>
> interface ATM0/0/0
> no ip address
> no atm ilmi-keepalive
> dsl operating-mode auto
> pvc 0/38
> encapsulation aal5mux ppp dialer
> dialer pool-member 1
> !
>
> interface Dialer0
> ip address negotiated
> 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
> ppp chap hostname yyyyyyy
> ppp chap password 0 xxxxx
> !
>
> ip route 0.0.0.0 0.0.0.0 Dialer0
> --------------------------------------
>
> the DSL signal locks (or at least the LED on the unit tells me it
> does).... The Following Debug Information May Help:
>
> debug atm events
> ---------------------
> *Jan 25 12:44:13.887: ATM0/0/0 check_lockup: scc = 0, output_qcount =
> 0, heads
> )110, 110,
> addr = (s)0x0, 0x0, count (s)110, 110
> *Jan 25 12:44:13.887: ATM0/0/0 check_lockup: scc = 1, output_qcount =
> 0, heads
> )55, 55,
> addr = (s)0x0, 0x0, count (s)55, 55
> *Jan 25 12:44:23.871: ATM0/0/0 check_lockup: scc = 0, output_qcount =
> 0, heads
> )110, 110,
> addr = (s)0x0, 0x0, count (s)110, 110
> *Jan 25 12:44:23.871: ATM0/0/0 check_lockup: scc = 1, output_qcount =
> 0, heads
> )55, 55,
> addr = (s)0x0, 0x0, count (s)55, 55
> *Jan 25 12:44:29.203: ATM0/0/0 dslsar_tx_status_ind(64C19A9C). vcd: 5
> NOT IN USE
> , Status=932505, tStamp: 82B725.
> *Jan 25 12:44:29.231: ATM(ATM0/0/0): vci 0, vpi 0, index 0 is incorrect
>
> *Jan 25 12:44:31.239: ATM(ATM0/0/0): vci 0, vpi 0, index 0 is incorrect
>
> *Jan 25 12:44:33.243: ATM(ATM0/0/0): vci 0, vpi 0, index 0 is incorrect
>
> *Jan 25 12:44:33.799: ATM0/0/0 check_lockup: scc = 0, output_qcount =
> 0, heads
> )110, 113,
> addr = (s)0x0, 0x0, count (s)110, 113
> *Jan 25 12:44:33.799: ATM0/0/0 check_lockup: scc = 1, output_qcount =
> 0, heads
> )55, 55,
>
> debug ppp negotation / debug ppp authentication
> -----------------------------------------------------------
> *Jan 25 12:45:19.379: Vi2 LCP: TIMEout: State Listen
> *Jan 25 12:45:19.379: Vi2 PPP: Authorization required
> *Jan 25 12:45:19.379: Vi2 LCP: O CONFREQ[Listen] id 121 len 15
> *Jan 25 12:45:19.379: Vi2 LCP: AuthProto CHAP (0x0305C22305)
> *Jan 25 12:45:19.379: Vi2 LCP: MagicNumber 0x19611144 (0x050619611144)
> *Jan 25 12:45:21.395: Vi2 LCP: TIMEout: State REQsent
> *Jan 25 12:45:21.395: Vi2 LCP: O CONFREQ [REQsent] id 122 len 15
> *Jan 25 12:45:21.395: Vi2 LCP: AuthProto CHAP (0x0305C22305)
> *Jan 25 12:45:21.395: Vi2 LCP: MagicNumber 0x19611144 (0x050619611144)
> *Jan 25 12:45:23.411: Vi2 LCP: TIMEout: State REQsent
> *Jan 25 12:45:23.411: Vi2 LCP: O CONFREQ [REQsent] id 123 len 15
> *Jan 25 12:45:23.411: Vi2 LCP: AuthProto CHAP (0x0305C22305)
> *Jan 25 12:45:23.411: Vi2 LCP: MagicNumber 0x19611144 (0x050619611144)
> *Jan 25 12:45:25.427: Vi2 LCP: TIMEout: State REQsent
> *Jan 25 12:45:25.427: Vi2 LCP: O CONFREQ [REQsent] id 124 len 15
> *Jan 25 12:45:25.427: Vi2 LCP: AuthProto CHAP (0x0305C22305)
> *Jan 25 12:45:25.427: Vi2 LCP: MagicNumber 0x19611144 (0x050619611144)
> *Jan 25 12:45:27.443: Vi2 LCP: TIMEout: State REQsent
> *Jan 25 12:45:27.443: Vi2 LCP: O CONFREQ [REQsent] id 125 len 15
> *Jan 25 12:45:27.443: Vi2 LCP: AuthProto CHAP (0x0305C22305)
> *Jan 25 12:45:27.443: Vi2 LCP: MagicNumber 0x19611144 (0x050619611144)
> *Jan 25 12:45:29.459: Vi2 LCP: TIMEout: State REQsent
> *Jan 25 12:45:29.459: Vi2 LCP: O CONFREQ [REQsent] id 126 len 15
> *Jan 25 12:45:29.459: Vi2 LCP: AuthProto CHAP (0x0305C22305)
> *Jan 25 12:45:29.459: Vi2 LCP: MagicNumber 0x19611144 (0x050619611144)
> *Jan 25 12:45:31.475: Vi2 LCP: TIMEout: State REQsent
> *Jan 25 12:45:31.475: Vi2 LCP: O CONFREQ [REQsent] id 127 len 15
> *Jan 25 12:45:31.475: Vi2 LCP: AuthProto CHAP (0x0305C22305)
> *Jan 25 12:45:31.475: Vi2 LCP: MagicNumber 0x19611144 (0x050619611144)
> *Jan 25 12:45:33.491: Vi2 LCP: TIMEout: State REQsent
> *Jan 25 12:45:33.491: Vi2 LCP: O CONFREQ [REQsent] id 128 len 15
> *Jan 25 12:45:33.491: Vi2 LCP: AuthProto CHAP (0x0305C22305)
> *Jan 25 12:45:33.491: Vi2 LCP: MagicNumber 0x19611144 (0x050619611144)
> *Jan 25 12:45:35.507: Vi2 LCP: TIMEout: State REQsent
> *Jan 25 12:45:35.507: Vi2 LCP: O CONFREQ [REQsent] id 129 len 15
> *Jan 25 12:45:35.507: Vi2 LCP: AuthProto CHAP (0x0305C22305)
> *Jan 25 12:45:35.507: Vi2 LCP: MagicNumber 0x19611144 (0x050619611144)
> *Jan 25 12:45:37.523: Vi2 LCP: TIMEout: State REQsent
> *Jan 25 12:45:37.523: Vi2 LCP: O CONFREQ [REQsent] id 130 len 15
> *Jan 25 12:45:37.523: Vi2 LCP: AuthProto CHAP (0x0305C22305)
> *Jan 25 12:45:37.523: Vi2 LCP: MagicNumber 0x19611144 (0x050619611144)
> *Jan 25 12:45:39.539: Vi2 LCP: TIMEout: State REQsent
> *Jan 25 12:45:39.539: Vi2 LCP: State is Listen
>
>
> Anyone point me in the right direction please?
>
> Cheers,
>
> C.


I'm not sure, but you might want to change the line under dialer0 for
the authentication to be

ppp authentication chap callin

so it's one-way authentication instead of attempting two-way.

However, if you're not even seeing BT's PE router then that's not your
first issue - which would be 'does the adsl train up?' Post a 'sh dsl
int atm 0/0/0' as at the moment your debug doesn't show any incoming
LCP messages...

Does the bb work with another router? Is there dial-tone on the line
(connected directly to the line & through the filter)?

 
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cwcrawley
Guest
Posts: n/a
 
      01-26-2007
Hi Alex,

Thanks for the message - here's the output of sh dsl int atm0/0/0

Alcatel 20150 chipset information
ATU-R (DS) ATU-C (US)
Modem Status: Showtime (DMTDSL_SHOWTIME)
DSL Mode: ITU G.992.1 (G.DMT) Annex A
ITU STD NUM: 0x01 0x1
Vendor ID: 'ALCB' 'TSTC'
Vendor Specific: 0x0000 0x0000
Vendor Country: 0x00 0xB5
Capacity Used: 93% 59%
Noise Margin: 6.5 dB 21.0 dB
Output Power: 20.0 dBm 12.0 dBm
Attenuation: 25.5 dB 14.0 dB
Defect Status: None None
Last Fail Code: None
Selftest Result: 0x00
Subfunction: 0x15
Interrupts: 2651 (0 spurious)
PHY Access Err: 0
Activations: 1
LED Status: ON
LED On Time: 100
LED Off Time: 100
Init FW: embedded
Operation FW: embedded
SW Version: 3.8131
FW Version: 0x1A04

Interleave Fast Interleave
Fast
Speed (kbps): 8096 0 448
0
Cells: 11 0 63962749
0
Reed-Solomon EC: 184 0 8
6
CRC Errors: 150 0 6
4
Header Errors: 146 0 3
4
Bit Errors: 0 0
BER Valid sec: 0 0
BER Invalid sec: 0 0

LOM Monitoring : Disabled

DMT Bits Per Bin
00: 0 0 0 0 0 0 0 4 3 5 7 7 7 8 7 8
10: 7 8 8 8 7 7 7 8 7 7 6 6 5 5 0 0
20: 0 0 0 0 0 0 8 8 9 9 A B B C C C
30: D D D D D D D D D D D D D D D D
40: 0 D D D D D D D D D D D D D D D
50: D D D D D D D D D D D D D D D 2
60: D D D D D D D D D D C D D D D D
70: D D D D D D D C D C C C D C C C
80: C C C C C C C C C C C C C C C C
90: C C C C C C C C C C C C C B C C
A0: B B C C B C B B B B B B B B A B
B0: B A B B B B B A B A B B B B B A
C0: A A A A A A A 9 9 9 9 9 9 9 9 9
D0: 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9
E0: 9 8 9 9 9 9 9 8 8 9 9 9 8 8 8 8
F0: 6 6 5 4 3 0 0 0 0 0 0 0 0 0 0 0

DSL: Training log buffer capability is not enabled

 
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cwcrawley
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Posts: n/a
 
      01-26-2007
> I'm not sure, but you might want to change the line under dialer0 for
> the authentication to be
>
> ppp authentication chap callin
>


Hi Al,

Thanks for the message... I've changed it to ppp chap callin, however
my debug comes up with this line:

*Jan 26 10:47:03.255: Vi2 DDR: Dialer statechange to up
*Jan 26 10:47:03.259: Vi2 PPP: Using dialer call direction
*Jan 26 10:47:03.263: Vi2 PPP: Treating connection as a callout
*Jan 26 10:47:03.263: Vi2 PPP: Session handle[95000003] Session id[1]
*Jan 26 10:47:03.263: Vi2 PPP: Phase is ESTABLISHING, Active Open
*Jan 26 10:47:03.263: Vi2 PPP: Authorization required
*Jan 26 10:47:03.263: Vi2 PPP: No remote authentication for call-out

What does this mean?

Rgds,

C.

 
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JF Mezei
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Posts: n/a
 
      01-26-2007
Al wrote:
>> *Jan 25 12:44:29.231: ATM(ATM0/0/0): vci 0, vpi 0, index 0 is incorrect
>>
>> *Jan 25 12:44:31.239: ATM(ATM0/0/0): vci 0, vpi 0, index 0 is incorrect
>>
>> *Jan 25 12:44:33.243: ATM(ATM0/0/0): vci 0, vpi 0, index 0 is incorrect



I have no knowledge of your actual hardware/software. Some residential DSL
modems will scan a variety of known VCI/VPIs to see if they can reach
someone. But some do not.

If your router/modem does not scan all available VCI/VPI to find a host at
the other end, you need to configure it with the right VCI/VPI numbers.

With invalid VCI/VPI, your modem will obtain Sync at the DSL levels.
Howver, the ATM frames get sent to unkown ATM destination and go into a big
bit bucket.

These numbers vary from telco to telco. So you need to get BT to reveal to
you what their VCI/VPI values would be.

This tells the modem to whom it should send the ATM frames. And when you
have the right values, your ATM frames blindly get sent to the BT regional
basic access server (glorified router which reroutes ATM packets to the ISP)


Also, in yor other message, you had a Signal to Noise ratio of 6.5 on the
8mbps side of the line. This probably explains why you are on interleave.
Below 6 is not recommended, 6 to 10 is marginal.
 
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Ian Wilson
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      01-26-2007
JF Mezei wrote:
> Al wrote:
>
>>> *Jan 25 12:44:29.231: ATM(ATM0/0/0): vci 0, vpi 0, index 0 is incorrect
>>>
>>> *Jan 25 12:44:31.239: ATM(ATM0/0/0): vci 0, vpi 0, index 0 is incorrect
>>>
>>> *Jan 25 12:44:33.243: ATM(ATM0/0/0): vci 0, vpi 0, index 0 is incorrect

>
>
>
> I have no knowledge of your actual hardware/software. Some residential
> DSL modems will scan a variety of known VCI/VPIs to see if they can
> reach someone. But some do not.
>
> If your router/modem does not scan all available VCI/VPI to find a host
> at the other end, you need to configure it with the right VCI/VPI numbers.
>
> With invalid VCI/VPI, your modem will obtain Sync at the DSL levels.
> Howver, the ATM frames get sent to unkown ATM destination and go into a
> big bit bucket.
>
> These numbers vary from telco to telco. So you need to get BT to reveal
> to you what their VCI/VPI values would be.


0,38 are the values used on my BT and Zen ADSL lines.
 
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cwcrawley
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      01-26-2007

> This tells the modem to whom it should send the ATM frames. And when you
> have the right values, your ATM frames blindly get sent to the BT regional
> basic access server (glorified router which reroutes ATM packets to the ISP)
>
>
> Also, in yor other message, you had a Signal to Noise ratio of 6.5 on the
> 8mbps side of the line. This probably explains why you are on interleave.
> Below 6 is not recommended, 6 to 10 is marginal.



Hi,

Yes - you are right... however, I have set my VCI/VPI in the Interface
Settings as per:

interface ATM0/0/0
no ip address
no atm ilmi-keepalive
dsl operating-mode auto
pvc 0/38 <<<<<<--------<<<<<<
encapsulation aal5mux ppp dialer
dialer pool-member 1
!

Do I need to set it anywhere else?

C.

 
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Darren Green
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Posts: n/a
 
      01-28-2007

"cwcrawley" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed) oups.com...
> I'm setting up a different 1841 for another client with the following
> config and it just doesn't want to Connect - I've been looking at it so
> long the last hour or two, that I can't see the wood for the trees....
>
> Internet/Dialer Config is as follows:
>
> --------------------------------------------------------------------------
>
> interface ATM0/0/0
> no ip address
> no atm ilmi-keepalive
> dsl operating-mode auto
> pvc 0/38
> encapsulation aal5mux ppp dialer
> dialer pool-member 1
> !
>
> interface Dialer0
> ip address negotiated
> 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
> ppp chap hostname yyyyyyy
> ppp chap password 0 xxxxx
> !
>

snip...

Hi,

I have enlcosed a config of a typical ADSL config I would drop onto a router
using a BT line:

interface ATM0 (change as applicable for your ATM slot no)
bandwidth 288
no ip address
no atm ilmi-keepalive
pvc 0/38
encapsulation aal5mux ppp dialer
dialer pool-member 1
!
dsl operating-mode auto

interface Dialer0
description Connection to XYZ
ip address negotiated
ip nat outside
ip access-group outside in (your access-list - change as applicable)
encapsulation ppp
dialer pool 1
ppp authentication chap callin
ppp chap hostname http://www.velocityreviews.com/forums/(E-Mail Removed)
ppp chap password YOURPASWORD

The above should be fine.

Regards

Darren




 
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