Besoin d'aide : Configuration d'un 2821 pour remplacer une Freebox

Question

Bonjour,
Je souhaite remplacer complètement ma Freebox par les équipements suivants :
- Un routeur Cisco 2821 équipé d'un module ADSL2+ (HWIC-1ADSL-M)
J'utilise la dernière version de l'Advanced Enterprise Services, IOS version 15.1(4)M7
- Un switch Cisco 2960G qui sera raccordé au 2821.
Je suis en dégroupage totale avec l'opérateur Free (donc IP over ATM je pense ?!)
Les spécifications de ma connexion :
Adsl :
======
  Etat                           Showtime               
  Protocole                      ADSL2+                 
  Mode                           Interleaved            
                         Descendant         Montant          
  Débit ATM              6570 kb/s          887 kb/s         
  Marge de bruit         5.40 dB            7.30 dB          
  Atténuation            46.00 dB           25.00 dB         
  FEC                    5211               27735            
  CRC                    76                 0                
  HEC                    3                  267
Je souhaite que mon routeur Cisco se comporte à l'identique de ma Freebox, c-a-dire :
Coté WAN, le routeur récupérera l'IP du DSLAM via le module HWIC ADSL qui sera paramétré avec l'@ MAC de ma BOX.
Coté LAN, le routeur CISCO proposera une config DHCP avec une passerelle par défaut en 192.168.1.50 + DNS récupérés via la conf. IP de l'opérateur (Lan en /24) pour les équipements IP raccordé sur le switch.
J'aurai besoin de faire du port forwarding pour certaines application (un ou deux exemples me serait utile)
J'accède et paramètre chaque équipement en port console via Putty.
La conf du routeur actuellement :
C2821#show config
Using 1860 out of 245752 bytes
! Last configuration change at 09:19:32 UTC Sun Nov 10 2013
version 15.1
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
hostname C2821
boot-start-marker
boot system flash:c2800nm-adventerprisek9-mz.151-4.M7.bin
boot-end-marker
logging buffered 4096
enable secret 5 $**************************************
enable password ************
no aaa new-model
no process cpu autoprofile hog
dot11 syslog
ip source-route
no ip routing
no ip cef
no ipv6 cef
multilink bundle-name authenticated
voice-card 0
crypto pki token default removal timeout 0
license udi pid CISCO2821 sn F***********2
archive
log config
hidekeys
redundancy
controller DSL 0/1/0
interface GigabitEthernet0/0
ip address 192.168.1.50 255.255.255.0
ip nat inside
ip virtual-reassembly in
no ip route-cache
duplex auto
speed auto
no cdp enable
no mop enabled
hold-queue 100 out
interface GigabitEthernet0/1
no ip address
no ip route-cache
shutdown
duplex auto
speed auto
no cdp enable
interface ATM0/0/0
mac-address 0007.****.****
no ip address
no ip redirects
no ip proxy-arp
no ip route-cache
no atm ilmi-keepalive
interface ATM0/0/0.1 point-to-point
ip address dhcp
ip nat outside
ip virtual-reassembly in
no ip route-cache
pvc 8/36
encapsulation aal5mux ip
ip forward-protocol nd
ip http server
no ip http secure-server
ip nat inside source list 1 interface ATM0/0/0.1 overload
ip route 0.0.0.0 0.0.0.0 ATM0/0/0.1
access-list 1 permit any
snmp-server community public RO
control-plane
mgcp profile default
line con 0
exec-timeout 0 0
line aux 0
line vty 0 4
session-timeout 9999
exec-timeout 9999 0
password ************
login
transport input all
scheduler allocate 20000 1000
end
J'ai caché volontairement les mot de passe, adresse mac et numéro de série.
A noter que la commande "dsl operating-mode auto" ne s'enregistre pas quand je la rentre sur l'interface ATM0/0/0, mais il semble que par défaut l'interface soit en auto d'après la documentation Cisco.
La connexion au DSLAM semble se faire correctement, voyant vert clignotant, puis fixe au niveau du module, pas de deconnexion/reconnexion intenpestive.
La connexion ne fonctionne pas... voici les infos que j'obtiens quand j'interroge les interfaces :
C2821>show interface ATM0/0/0.1
ATM0/0/0.1 is up, line protocol is up
  Hardware is HWIC-DSLSAR (with Alcatel ADSL Module), address is 0007.****.**** (bia dc7b.94d9.5423)
  Internet address will be negotiated using DHCP
  MTU 4470 bytes, BW 900 Kbit/sec, DLY 560 usec,
     reliability 81/255, txload 1/255, rxload 1/255
  Encapsulation ATM
  Keepalive not supported
     530 packets input, 42611 bytes
     15 packets output, 3880 bytes
     0 OAM cells input, 0 OAM cells output
  AAL5 CRC errors : 0
  AAL5 SAR Timeouts : 0
  AAL5 Oversized SDUs : 0
  Last clearing of "show interface" counters never
C2821>show interface ATM0/0/0
ATM0/0/0 is up, line protocol is up
  Hardware is HWIC-DSLSAR (with Alcatel ADSL Module), address is 0007.****.**** (bia dc7b.94d9.5423)
  MTU 4470 bytes, sub MTU 4470, BW 900 Kbit/sec, DLY 560 usec,
     reliability 108/255, txload 1/255, rxload 1/255
  Encapsulation ATM, loopback not set
  Keepalive not supported
  Encapsulation(s): AAL5
  23 maximum active VCs, 256 VCs per VP, 1 current VCCs
  VC Auto Creation Disabled.
  VC idle disconnect time: 300 seconds
  Last input 00:00:00, output 00:00:10, 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 2000 bits/sec, 3 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     739 packets input, 58437 bytes, 0 no buffer
     Received 0 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     19 packets output, 4936 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 unknown protocol drops
     0 output buffer failures, 0 output buffers swapped out
Un "show ip interface brief" :
Interface
IP-Address
OK?
Method
Status
Protocol
GigabitEthernet0/0
192.168.1.50
YES
NVRAM
up
up
GigabitEthernet0/1
unassigned
YES
NVRAM
administratively down
down
ATM0/0/0
unassigned
YES
NVRAM
up
up
ATM0/0/0.1
unassigned
YES
DHCP
up
up
NVI0
192.168.1.50
YES
unset
up
up
J'ai fait deux tests supplémentaires en modifiant l'interface ATM0/0/0.1 : dans un cas avec mon IP Wan en static ou en DHCP => KO dans les deux cas.
Voici les résultats :
1° => Interface ATM0/0/0.1 en IP Static (ip address 88.xx.xx.xx 255.255.255.0)
C2821#show dsl interface atm0/0/0
ATM0/0/0
Alcatel 20190 chipset information
                ATU-R (DS)                      ATU-C (US)
Modem Status:    Showtime (DMTDSL_SHOWTIME)
DSL Mode:        ITU G.992.5 (ADSL2+) Annex A
ITU STD NUM:     0x03                            0x2
Chip Vendor ID:  'STMI'                          'BDCM'
Chip Vendor Specific:  0x0000                    0xA197
Chip Vendor Country:   0x0F                      0xB5
Modem Vendor ID: 'CSCO'                          'BDCM'
Modem Vendor Specific: 0x0000                    0x0000
Modem Vendor Country:  0xB5                      0xB5
Serial Number Near:    FO******** 2821
Serial Number Far:
ModemChip ID:    C196 (3) capability-enabled
DFE BOM:         DFE3.0 Annex M (3)
Capacity Used:   99%                             99%
Noise Margin:     7.0 dB                          7.0 dB
Output Power:    18.0 dBm                        12.5 dBm
Attenuation:     47.0 dB                         26.0 dB
FEC ES Errors:   22                              12001
ES Errors:        3                               4
SES Errors:       1                               0
LOSES Errors:     1                               0
UES Errors:       0                              4094
Defect Status:   None                            None
Last Fail Code:  None
Watchdog Counter: 0xC9
Watchdog Resets: 0
Selftest Result: 0x00
Subfunction:     0x00
Interrupts:      342012 (0 spurious)
PHY Access Err:  0
Activations:     1
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
FW Version:      4.0.15
                 DS Channel1      DS Channel0   US Channel1       US Channel0
Speed (kbps):             0             6016             0               900
DS User cells:            0             2075
US User & Idle cells:                                     0           764053
Reed-Solomon EC:          0               33             0             27746
CRC Errors:               0                5             0                17
Header Errors:            0                5             0               273
Total BER:                0E-0           4531E-9
Leakage Average BER:      0E-0           4531E-9
Interleave Delay:         0                8             0                61
                        ATU-R (DS)      ATU-C (US)
Bitswap:               enabled            enabled
LOM Monitoring : Disabled
DMT Bits Per Bin
000: 0 0 0 0 0 0 0 8 B B B B B B B B
010: B A A A A A A A A A A B B B B A
020: 0 6 7 7 7 8 8 8 9 9 9 A A A A A
030: A A A A 9 9 9 8 7 7 8 9 A A A A
040: A A A A A 2 A A A A A A A A A A
050: A A 9 9 9 9 9 9 9 9 9 9 9 9 9 9
060: 9 9 9 9 9 9 9 9 9 8 9 8 8 8 8 8
070: 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8
080: 8 8 8 7 8 8 8 8 8 8 7 8 8 7 7 7
090: 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
0A0: 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
0B0: 7 7 7 7 7 6 6 6 6 6 6 6 6 6 6 6
0C0: 6 6 5 5 5 4 2 0 0 0 2 4 5 5 5 5
0D0: 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5
0E0: 5 5 5 5 5 5 5 5 5 5 5 4 4 4 4 4
0F0: 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
100: 4 4 4 4 4 4 4 4 3 3 3 3 3 3 3 3
110: 3 3 3 2 2 2 2 2 2 2 2 2 2 2 2 2
120: 2 2 2 2 2 0 0 0 0 2 2 2 2 2 2 2
130: 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1
140: 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0
150: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
160: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
170: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
180: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
190: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
1A0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
1B0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
1C0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
1D0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
1E0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
1F0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
DSL: Training log buffer capability is not enabled
2° => Interface ATM0/0/0.1 en DHCP
C2821>show dsl interface atm0/0/0
ATM0/0/0
Alcatel 20190 chipset information
                ATU-R (DS)                      ATU-C (US)
Modem Status:    Showtime (DMTDSL_SHOWTIME)
DSL Mode:        ITU G.992.5 (ADSL2+) Annex A
ITU STD NUM:     0x03                            0x2
Chip Vendor ID:  'STMI'                          'BDCM'
Chip Vendor Specific:  0x0000                    0xA197
Chip Vendor Country:   0x0F                      0xB5
Modem Vendor ID: 'CSCO'                          'BDCM'
Modem Vendor Specific: 0x0000                    0x0000
Modem Vendor Country:  0xB5                      0xB5
Serial Number Near:    F*********** 2821
Serial Number Far:
ModemChip ID:    C196 (3) capability-enabled
DFE BOM:         DFE3.0 Annex M (3)
Capacity Used:   99%                             99%
Noise Margin:     6.5 dB                          7.0 dB
Output Power:    18.0 dBm                        12.5 dBm
Attenuation:     47.0 dB                         26.0 dB
FEC ES Errors:   12001                           262
ES Errors:        4                               4
SES Errors:       0                               1
LOSES Errors:     0                               1
UES Errors:      4365                             0
Defect Status:   None                            None
Last Fail Code:  None
Watchdog Counter: 0x26
Watchdog Resets: 0
Selftest Result: 0x00
Subfunction:     0x00
Interrupts:      8816 (0 spurious)
PHY Access Err:  0
Activations:     1
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
FW Version:      4.0.15
                 DS Channel1      DS Channel0   US Channel1       US Channel0
Speed (kbps):             0             6029             0               900
DS User cells:            0             5771
US User & Idle cells:                                     0          3241224
Reed-Solomon EC:          0              348             0              1922
CRC Errors:               0                4             0                 4
Header Errors:            0                4             0               101
Total BER:                0E-0           9037E-10
Leakage Average BER:      0E-0           9037E-10
                        ATU-R (DS)      ATU-C (US)
Bitswap:               enabled            enabled
LOM Monitoring : Disabled
DMT Bits Per Bin
Not able to get complete DMT bin information.Please retry "show dsl" after few seconds.
DSL: Training log buffer capability is not enabled
J'ai besoin d'un peu d'aide pour établir la configuration sur le routeur, mes connaissance étant limité pour réaliser une conf aussi complexe.
Merci pour votre aide.

Answer 1

J'avance concernant mon problème DHCP, le résultat du debug est intéressant on y vois clairement que je n'arrive pas à obtenir d'IP de Free et que l'IOS Cisco me présente avec un client-ID auquel il ajoute "cisco-" et "-AT0/0/0.1"
C'est ce qui doit expliquer le refus de Free de me fournir une adresse IP.
Je pense également que le format de la mac adresse attendu par le DHCP Free est incorrect, il attends un mac du type XX:XX:XX:XX:XX:XX et non un XXXX.XXXX.XXX
Il faut utiliser la commande "ip address dhcp client-id interface-name" pour forcer le client-ID avec une mac de type XX:XX:XX:XX:XX:XX mais je n'arrive pas à utiliser cette commande correctement
J'ai trouvé cette information ici => http://blog.ipspace.net/2007/0.....nt-id.html
J'ai bien lu la syntaxe mais il en veux pas, le sub interface ATM ne l'accepte pas semble t'il ?!
Quelqu'un serait m'aider à l'utiliser ?
Ci-dessous le debug DHCP :
Code:
*Nov 17 10:16:33.659: DHCP: DHCP client process started: 10
*Nov 17 10:16:33.659: RAC: Starting DHCP discover on ATM0/0/0.1
*Nov 17 10:16:33.659: DHCP: Try 1 to acquire address for ATM0/0/0.1
*Nov 17 10:16:33.663: DHCP: allocate request
*Nov 17 10:16:33.663: DHCP: new entry. add to queue, interface ATM0/0/0.1
*Nov 17 10:16:33.663: DHCP: Client socket is opened
*Nov 17 10:16:33.663: DHCP: SDiscover attempt # 1 for entry:
*Nov 17 10:16:33.663: Temp IP addr: 0.0.0.0  for peer on Interface: ATM0/0/0.1
*Nov 17 10:16:33.663: Temp  sub net mask: 0.0.0.0
*Nov 17 10:16:33.663:    DHCP Lease server: 0.0.0.0, state: 3 Selecting
*Nov 17 10:16:33.663:    DHCP transaction id: F9D
*Nov 17 10:16:33.663:    Lease: 0 secs,  Renewal: 0 secs,  Rebind: 0 secs
*Nov 17 10:16:33.663:    Next timer fires after: 00:00:04
*Nov 17 10:16:33.663:    Retry count: 1   Client-ID: cisco-0007.****.**4b-AT0/0/0.1
*Nov 17 10:16:33.663:    Client-ID hex dump: 63697363****************************2E
*Nov 17 10:16:33.667:                        6363*********************302F302E31
*Nov 17 10:16:33.667:    Hostname: C2821
*Nov 17 10:16:33.667: DHCP: SDiscover placed class-id option: 64736C666F72756D2E6F7267
*Nov 17 10:16:33.667: DHCP: SDiscover: sending 312 byte length DHCP packet
*Nov 17 10:16:33.667: DHCP: SDiscover 312 bytes
*Nov 17 10:16:33.667:             B'cast on ATM0/0/0.1 interface from 0.0.0.0
*Nov 17 10:16:37.291: DHCP: SDiscover attempt # 2 for entry:
*Nov 17 10:16:37.291: Temp IP addr: 0.0.0.0  for peer on Interface: ATM0/0/0.1
*Nov 17 10:16:37.291: Temp  sub net mask: 0.0.0.0
*Nov 17 10:16:37.291:    DHCP Lease server: 0.0.0.0, state: 3 Selecting
*Nov 17 10:16:37.291:    DHCP transaction id: F9D
*Nov 17 10:16:37.291:    Lease: 0 secs,  Renewal: 0 secs,  Rebind: 0 secs
*Nov 17 10:16:37.291:    Next timer fires after: 00:00:04
*Nov 17 10:16:37.291:    Retry count: 2   Client-ID: cisco-0007.****.**4b-AT0/0/0.1
*Nov 17 10:16:37.291:    Client-ID hex dump: 63697363****************************2E
*Nov 17 10:16:37.291:                        6363*********************302F302E31
*Nov 17 10:16:37.291:    Hostname: C2821
*Nov 17 10:16:37.291: DHCP: SDiscover placed class-id option: 64736C666F72756D2E6F7267
*Nov 17 10:16:37.291: DHCP: SDiscover: sending 312 byte length DHCP packet
*Nov 17 10:16:37.291: DHCP: SDiscover 312 bytes
*Nov 17 10:16:37.291:             B'cast on ATM0/0/0.1 interface from 0.0.0.0
*Nov 17 10:16:41.291: DHCP: SDiscover attempt # 3 for entry:
*Nov 17 10:16:41.291: Temp IP addr: 0.0.0.0  for peer on Interface: ATM0/0/0.1
*Nov 17 10:16:41.291: Temp  sub net mask: 0.0.0.0
*Nov 17 10:16:41.291:    DHCP Lease server: 0.0.0.0, state: 3 Selecting
*Nov 17 10:16:41.291:    DHCP transaction id: F9D
*Nov 17 10:16:41.291:    Lease: 0 secs,  Renewal: 0 secs,  Rebind: 0 secs
*Nov 17 10:16:41.291:    Next timer fires after: 00:00:04
*Nov 17 10:16:41.291:    Retry count: 3   Client-ID: cisco-0007.****.**4b-AT0/0/0.1
*Nov 17 10:16:41.291:    Client-ID hex dump: 63697363****************************2E
*Nov 17 10:16:41.291:                        6363*********************302F302E31