Cisco 876W & troubleshooting ADSL

[karoto]

Καλησπερα,

Αντιμετωπίζω ενα πρόβλημα με το ADSL του router μου αλλά δεν είμαι σίγουρος αν είναι το ADSL η το ίδιο το Cisco. Συγκεκριμένα, συγχρωνίζει αλλα δε προχωράει στο ppp negotiation.

show interface atm 0


ATM0 is up, line protocol is up 
  Hardware is MPC ATMSAR (with Alcatel ADSL Module)
  Backup interface Dialer2, failure delay 60 sec, secondary disable delay 30 sec,
  kickin load not set, kickout load not set
  MTU 4470 bytes, sub MTU 4470, BW 798 Kbit/sec, DLY 460 usec, 
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ATM, loopback not set
  Encapsulation(s): AAL5  AAL2, PVC mode
  10 maximum active VCs, 1024 VCs per VP, 1 current VCCs
  VC Auto Creation Disabled.
  VC idle disconnect time: 300 seconds
  Last input never, output 00:00:06, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: Per VC Queueing
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     0 packets input, 0 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     1890 packets output, 37800 bytes, 0 underruns
     0 output errors, 0 collisions, 2 interface resets
     0 output buffer failures, 0 output buffers swapped out


testrouter#show atm interface atm 0
Interface ATM0:
AAL enabled:  AAL5   AAL2, Maximum VCs: 10, Current VCCs: 1


VCIs per VPI: 1024, 
Max. Datagram Size: 4528
PLIM Type: ADSL - 798Kbps Upstream, DMT, TX clocking: LINE
0 input, 1900 output, 0 IN fast, 0 OUT fast
 Avail bw = 798 
Config. is ACTIVE


testrouter#show ip interface 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                    up      
BRI0                       unassigned      YES NVRAM  administratively down down    
BRI0:1                     unassigned      YES unset  administratively down down    
BRI0:2                     unassigned      YES unset  administratively down down    
Dot11Radio0                unassigned      YES NVRAM  administratively down down    
ATM0                       unassigned      YES NVRAM  up                    up      
Vlan1                      unassigned      YES NVRAM  up                    up      
Dialer2                    unassigned      YES NVRAM  standby mode          down    
Virtual-Template2          unassigned      NO  TFTP   down                  down    
Dialer1                    unassigned      YES NVRAM  up                    up      
Virtual-Template3          unassigned      NO  TFTP   down                  down    
Virtual-Template4          unassigned      NO  TFTP   down                  down    
Virtual-Template5          unassigned      NO  TFTP   down                  down    
NVI0                       unassigned      YES unset  administratively down down    
Vlan10                     192.168.1.1     YES NVRAM  up                    down    
Vlan20                     192.168.100.1   YES NVRAM  up                    down    
Virtual-Access1            unassigned      YES unset  up                    up      
Dialer0                    unassigned      YES NVRAM  up                    up      
Virtual-Access2            unassigned      YES unset  down                  down    
Virtual-Access3            unassigned      YES unset  up                    down    






testrouter#debug ppp negotiation
PPP protocol negotiation debugging is on
testrouter#
*Mar  6 13:36:52.203: Vi3 LCP: Timeout: State Listen
*Mar  6 13:36:52.203: Vi3 PPP: No remote authentication for call-out
*Mar  6 13:36:52.203: Vi3 LCP: O CONFREQ 
[Listen] id 150 len 14
*Mar  6 13:36:52.203: Vi3 LCP:    MRU 1418 (0x0104058A)
*Mar  6 13:36:52.203: Vi3 LCP:    MagicNumber 0x15FA170B (0x050615FA170B)
*Mar  6 13:36:54.219: Vi3 LCP: Timeout: State REQsent
*Mar  6 13:36:54.219: Vi3 LCP: O CONFREQ [REQsent] id 151 len 14
*Mar  6 13:36:54.219: Vi3 LCP:    MRU 1418 (0x0104058A)
*Mar  6 13:36:54.219: Vi3 LCP:    MagicNumber 0x15FA170B (0x050615FA170B)
*Mar  6 13:36:56.235: Vi3 LCP: Timeout: State REQsent
*Mar  6 13:36:56.235: Vi3 LCP: O CONFREQ [REQsent] id 152 len 14
*Mar  6 13:36:56.235: Vi3 LCP:    MRU 1418 (0x0104058A)
*Mar  6 13:36:56.235: Vi3 LCP:    MagicNumber 0x15FA170B (0x050615FA170B)
*Mar  6 13:36:58.251: Vi3 LCP: Timeout: State REQsent
*Mar  6 13:36:58.251: Vi3 LCP: O CONFREQ [REQsent] id 153 len 14
*Mar  6 13:36:58.251: Vi3 LCP:    MRU 1418 (0x0104058A)
*Mar  6 13:36:58.251: Vi3 LCP:    MagicNumber 0x15FA170B (0x050615FA170B)
*Mar  6 13:37:00.267: Vi3 LCP: Timeout: State REQsent
*Mar  6 13:37:00.267: Vi3 LCP: O CONFREQ [REQsent] id 154 len 14
*Mar  6 13:37:00.267: Vi3 LCP:    MRU 1418 (0x0104058A)
*Mar  6 13:37:00.267: Vi3 LCP:    MagicNumber 0x15FA170B (0x050615FA170B)
*Mar  6 13:37:02.283: Vi3 LCP: Timeout: State REQsent
*Mar  6 13:37:02.283: Vi3 LCP: O CONFREQ [REQsent] id 155 len 14
*Mar  6 13:37:02.283: Vi3 LCP:    MRU 1418 (0x0104058A)
*Mar  6 13:37:02.283: Vi3 LCP:    MagicNumber 0x15FA170B (0x050615FA170B)
*Mar  6 13:37:04.299: Vi3 LCP: Timeout: State REQsent
*Mar  6 13:37:04.299: Vi3 LCP: O CONFREQ [REQsent] id 156 len 14
*Mar  6 13:37:04.299: Vi3 LCP:    MRU 1418 (0x0104058A)
*Mar  6 13:37:04.299: Vi3 LCP:    MagicNumber 0x15FA170B (0x050615FA170B)
*Mar  6 13:37:06.315: Vi3 LCP: Timeout: State REQsent
*Mar  6 13:37:06.315: Vi3 LCP: O CONFREQ [REQsent] id 157 len 14
*Mar  6 13:37:06.315: Vi3 LCP:    MRU 1418 (0x0104058A)
*Mar  6 13:37:06.315: Vi3 LCP:    MagicNumber 0x15FA170B (0x050615FA170B)
*Mar  6 13:37:08.331: Vi3 LCP: Timeout: State REQsent
*Mar  6 13:37:08.331: Vi3 LCP: O CONFREQ [REQsent] id 158 len 14
*Mar  6 13:37:08.331: Vi3 LCP:    MRU 1418 (0x0104058A)
*Mar  6 13:37:08.331: Vi3 LCP:    MagicNumber 0x15FA170B (0x050615FA170B)
*Mar  6 13:37:10.347: Vi3 LCP: Timeout: State REQsent
*Mar  6 13:37:10.347: Vi3 LCP: O CONFREQ [REQsent] id 159 len 14
*Mar  6 13:37:10.347: Vi3 LCP:    MRU 1418 (0x0104058A)
*Mar  6 13:37:10.347: Vi3 LCP:    MagicNumber 0x15FA170B (0x050615FA170B)
*Mar  6 13:37:12.363: Vi3 LCP: Timeout: State REQsent
*Mar  6 13:37:12.363: Vi3 LCP: State is Listen

testrouter#sh int dialer1
Dialer1 is up, line protocol is up (spoofing)
  Hardware is Unknown
  Description: ***ADSL DIALER***
  Internet address will be negotiated using IPCP
  MTU 1418 bytes, BW 56 Kbit/sec, DLY 20000 usec, 
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation PPP, loopback not set
  Keepalive set (10 sec)
  DTR is pulsed for 1 seconds on reset
  Interface is bound to Vi3
  Last input never, output never, output hang never
  Last clearing of "show interface" counters 02:57:23
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: weighted fair
  Output queue: 0/1000/64/0 (size/max total/threshold/drops) 
     Conversations  0/0/16 (active/max active/max total)
     Reserved Conversations 0/0 (allocated/max allocated)
     Available Bandwidth 42 kilobits/sec
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     0 packets input, 0 bytes
     0 packets output, 0 bytes
Bound to:
Virtual-Access3 is up, line protocol is down 
  Hardware is Virtual Access interface
  MTU 1418 bytes, BW 798 Kbit/sec, DLY 20000 usec, 
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation PPP, LCP REQsent
  PPPoATM vaccess, cloned from Dialer1
  Vaccess status 0x44
  Bound to ATM0 VCD: 1, VPI: 8, VCI: 35, loopback not set
  Keepalive set (10 sec)
  DTR is pulsed for 5 seconds on reset
  Interface is bound to Di1 (Encapsulation PPP)
  Last input never, output never, output hang never
  Last clearing of "show interface" counters 02:56:04
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     0 packets input, 0 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     2081 packets output, 33296 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions

Υποψιάζομαι οτι κάτι παίζει με το PPP αλλά δε μπορώ να βρω τι ακριβώς. H Γραμμή παίζει με απλό ADSL modem και συγχρονίζει κανονικά.

Ευχαριστώ

[nstamoul]

To PCV πως το έχεις ρυθμισμένο, με PPPOE ή PPPOATM;

Δες με show pppoe session ή show pppatm session αντίστοιχα αν έχεις established session.

Αν δεν βλέπεις sessions δες τα αντίστοιχα debugs.

[d.stathopoulos]

Ποιό είναι το output της sh dsl int atm 0 ;