PPP in ADSL CISCO 877

[emilio1973]

Hi all,

my 877 Cisco Router is conected to an ADSL line. The CD light is ok but PPP light is off. This is the output of debug ppp negotiation command:

CPE#
*Mar  2 01:08:43.831: Vi2 LCP: Timeout: State Listen
*Mar  2 01:08:43.831: Vi2 PPP: No remote authentication for call-out
*Mar  2 01:08:43.831: Vi2 LCP: O CONFREQ [Listen] id 241 len 10
*Mar  2 01:08:43.831: Vi2 LCP:    MagicNumber 0x25996C7C (0x050625996C7C)
CPE#
*Mar  2 01:08:45.847: Vi2 LCP: Timeout: State REQsent
*Mar  2 01:08:45.847: Vi2 LCP: O CONFREQ [REQsent] id 242 len 10
*Mar  2 01:08:45.847: Vi2 LCP:    MagicNumber 0x25996C7C (0x050625996C7C)
CPE#
*Mar  2 01:08:47.863: Vi2 LCP: Timeout: State REQsent
*Mar  2 01:08:47.863: Vi2 LCP: O CONFREQ [REQsent] id 243 len 10
*Mar  2 01:08:47.863: Vi2 LCP:    MagicNumber 0x25996C7C (0x050625996C7C)

CPE#debug atm events
ATM events debugging is on
CPE251#
*Mar  2 01:10:26.199: atmsar_vc_tx_start(82D7A904).
*Mar  2 01:10:26.199: ATM0:atmsar_dequeue_pak, dequeued a pak = 0x82B36A80
*Mar  2 01:10:26.199: atmsar_transmit_pak_wrapper: deq(82B36A80). vcd: 1.atmsar_transmit_pak_wrapper : encap = Data
CPE#
*Mar  2 01:10:28.215: atmsar_vc_tx_start(82D7A904).
*Mar  2 01:10:28.215: ATM0:atmsar_dequeue_pak, dequeued a pak = 0x82B37950
*Mar  2 01:10:28.215: atmsar_transmit_pak_wrapper: deq(82B37950). vcd: 1.atmsar_transmit_pak_wrapper : encap = Data
CPE#
*Mar  2 01:10:30.231: atmsar_vc_tx_start(82D7A904).
*Mar  2 01:10:30.231: ATM0:atmsar_dequeue_pak, dequeued a pak = 0x830F30A8
*Mar  2 01:10:30.231: atmsar_transmit_pak_wrapper: deq(830F30A8). vcd: 1.atmsar_transmit_pak_wrapper : encap = Data
CPE251#
*Mar  2 01:10:32.247: atmsar_vc_tx_start(82D7A904).

CPE#sh ip int brief
Interface                  IP-Address      OK? Method Status                Protocol
FastEthernet0              unassigned      YES unset  up                    down
FastEthernet1              unassigned      YES unset  up                    down
FastEthernet2              unassigned      YES unset  up                    down
FastEthernet3              unassigned      YES unset  up                    down
ATM0                       unassigned      YES NVRAM  up                    up
ATM0.1                     unassigned      YES unset  up                    up
Vlan1                      192.168.250.1   YES NVRAM  up                    down
NVI0                       unassigned      YES unset  administratively down down
Dialer1                    unassigned      YES NVRAM  up                    up
Virtual-Access1            unassigned      YES unset  up                    up
Virtual-Access2            unassigned      YES unset  up                    down

Thanks for your help!!

[jkinnaird1]

Try removing LMI Global from config, we had this issue and after removing the LMI command PPP came up and the Tunnel formed OK

[emilio1973]

I detected flaps in ATM0 interface when reload the router:

*Mar 11 05:29:28.975: %LINK-3-UPDOWN: Interface ATM0, changed state to down
*Mar 11 05:29:29.975: %LINEPROTO-5-UPDOWN: Line protocol on Interface ATM0, changed state to down

[emilio1973]

In the end we got it to work.

We  spent the whole configuration of the subinterface to the physical  interface, the default encapsulation and the line "pppoe-client  dial-pool-number 1" and work right.

Thanks for your help