11-10-2013 03:42 AM - edited 03-07-2019 04:31 PM
Hi to all,
I try to replace my box with a Cisco router and switch, my hardware setup is :
- 1 Cisco router 2821 with ADSL2+ HWIC-1ADSL-M modul
I use the lastest IOS version with it => Advanced Enterprise Services, IOS version 15.1(4)M7
- 1 Cisco switch 2960G connected to 2821.
My Internet Service Provider offer "IP over ATM" connection type.
My internet détails is :
Etat Showtime
Protocole ADSL2+
Mode Interleaved
Downstream Upstream
-- --
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
I would like to use my router as the same as my box (modem) provided from my ISP :
On WAN side, my router will recover IP from my ISP with HWIC ADSL modul, the modul will use the same MAC@ as my BOX.
On LAN side, the router provide DHCP with a default gateway 192.168.1.50, it provide DNS details recovered from my ISP (Lan is a /24) for all ip device connected on the switch
I need to do some port forwarding, so i need to have one or two line with it as example.
I use Putty with console port for setup all devices.
My router Setup :
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
I hide password, mac@ et serial number for security reasons.
The "dsl operating-mode auto" command pass properly in ATM0/0/0 interface but it's not recorded when i do a show config, but it seems that HWIC setup is in auto by default !?
The synchronisation with my ISP (through the DSLAM) seems correct, the green light near the module is fix after some seconds, i have no disconnection.
This is the informations provided on ATM interface :
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
A "show ip interface brief" result :
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 |
I make two tests on ATM0/0/0.1 interface with static ip and DHCP setup, both test are KO, here a the results :
1° => Interface ATM0/0/0.1 with Static IP (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
Ping from router to my WAN IP address 88.XXX.XXX.156 => OK
Ping from router to my WAN Default Gateway (IP = 88.XXX.XXX.254) => OK
Ping from router to 173.194.45.56 (Google) => KO
Ping from a PC (IP is 192.168.1.2, DG is 192.168.1.50) to my WAN IP address 88.XX.XX.XX => OK
Ping from a PC (IP is 192.168.1.2, DG is 192.168.1.50) to my WAN Default Gateway (IP = 88.XXX.XXX.254) => KO
Ping from a PC (IP is 192.168.1.2, DG is 192.168.1.50) to 173.194.45.56 (Google) => KO
2° => Interface ATM0/0/0.1 with DHCP setup
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
Ping from router to my WAN IP address 88.XXX.XXX.156 => OK
Ping from router to my WAN Default Gateway (IP = 88.XXX.XXX.254) => KO
Ping from router to 173.194.45.56 (Google) => KO
Ping from a PC (IP is 192.168.1.2, DG is 192.168.1.50) to my WAN IP address 88.XX.XX.XX => KO
Ping from a PC (IP is 192.168.1.2, DG is 192.168.1.50) to my WAN Default Gateway (IP = 88.XXX.XXX.254) => KO
Ping from a PC (IP is 192.168.1.2, DG is 192.168.1.50) to 173.194.45.56 (Google) => KO
Can you help me to troubleshoot my setup ?
Many thanks for your help.
11-11-2013 05:56 AM
I answer to my issue, LAN issue for access to internet was due to "no ip routing" in my setup.
From now, all is working when i use static IP with my ISP, DHCP mode doesn't work for unknow reason.
My Service Providers restricted DHCP addressing with MAC addresses, but i spoof it with "Mac-address" command in ATM interface.
So i dunno why i'm not able to use DHCP mode with my ISP, if someone know how to fix this problem, it will be fine.
I monitor during two days the connexion from my PC (ping the default gateway on Wan side) and i notice some interesting things.
I loose my connection every 30 minutes all time, my connection is going up just one minute after...
From my point of view, it can be due :
*Nov 11 07:36:04.863: %LINK-3-UPDOWN: Interface ATM0/0/0, changed state to up
*Nov 11 07:36:05.863: %LINEPROTO-5-UPDOWN: Line protocol on Interface ATM0/0/0, changed state to up
*Nov 11 08:03:44.859: %LINK-3-UPDOWN: Interface ATM0/0/0, changed state to down
*Nov 11 08:03:45.859: %LINEPROTO-5-UPDOWN: Line protocol on Interface ATM0/0/0, changed state to down
*Nov 11 08:04:44.863: %LINK-3-UPDOWN: Interface ATM0/0/0, changed state to up
*Nov 11 08:04:45.863: %LINEPROTO-5-UPDOWN: Line protocol on Interface ATM0/0/0, changed state to up
Someone know how to troubleshoot it for know why ?
I loose 13% of bandwidth with my router when i compare it with my ISP modem.
With the router : download rate : 4,70 mbps / upload rate : 0,72 / ping @ 66ms
With the modem from my ISP : download rate : 5,40 mbps / upload rate : 0,72 / ping @ 42ms
Ping and download is better with the modem provided by my ISP.
Someone can help me to optimise my bandwidth/connection ?
I notice that telnet and http port of my router is open from WAN side, someone can help me to fix for be accessible only from LAN side please ?
Many Thks.
11-16-2013 02:06 AM
UP!
11-17-2013 06:13 AM
About my DHCP issue :
As you can see, the router doesn’t acquire IP from my ISP but i notice that the Client-ID provided include “cisco-“ and “-AT0/0/0.1”, it can explain my DHCP issue because my ISP attempt only to have a mac-address.
I use “mac-address” command in my setup to have only “0007.XXXX.XX4b” but in fact the router client-ID is “cisco-0007.XXXX.XX4b-AT0/0/0.1”
I need to avoid “cisco-“ and “-AT0/0/0.1” in DHCP Client-ID and change my mac adresse for be in format XX:XX:XX:XX:XX:XX, instead of XXXX.XXXX.XXXX.
It can be possible with "ip address dhcp client-id" command but the router doesn't accept it !
I find this information here => http://blog.ipspace.net/2007/0.....nt-id.html
Someone can help me to doing it properly with my setup please ?
DHCP Debug log :
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 |
12-01-2013 01:14 AM
uP!
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