CISCO 1720

[mout]

hello I'm french, I succeeded has to configure my router Cisco for the ADSL with my card WIC 0 ADSL after start it puts to me that fastethernet is UP, VIRTUAL ACCESS is UP and ATM0 is UP thus I thinks that it is connected has Internet especially that there are "ACT" every 2 seconds on the level of my card WIC0 and that the indicator CD (carrier detect) is lit. but on my station there are not Internet. it ping well the Ethernet card on my router but it does not arrive has to leave how to make for verifier if the routing of the ATM has my Ethernet chart is done well???? do y have to you it order has to type to activate a simple routing???

This is my configuration :

version 12.1
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Router
!
enable secret 5 xxx
enable password xxx
!
memory-size iomem 25
ip subnet-zero
no ip routing
!
interface ATM0
no ip address
no ip route-cache
atm vc-per-vp 256
no atm ilmi-keepalive
pvc 8/35
encapsulation aal5mux ppp dialer
dialer pool-member 1
!
dsl operating-mode auto
no fair-queue
hold-queue 224 in
!
interface BRI0
no ip address
no ip route-cache
shutdown
!
interface FastEthernet0
ip address 192.168.0.2 255.255.255.0
ip nat inside
no ip route-cache
speed auto
!
interface Dialer0
ip address negotiated
ip nat outside
encapsulation ppp
dialer pool 1
dialer-group 1
ppp authentication chap callin
ppp chap hostname xxxxx
ppp chap password xxxxx
!
ip classless
no ip http server
!
dialer-list 1 protocol ip permit
dialer-list 1 protocol ipx permit
snmp-server engineID local xxx
snmp-server community n RO
!
line con 0
transport input none
line aux 0
line vty 0 4
password cisco
login
!
end

Thank you !!!

 

[ChrisAC]

The first thing to do would be to see if the WIC card is trained up with the ADSL access server, using ...

sh dsl int atm0

This will give you some output similar to ..

collossus#sh dsl int atm0
Alcatel 20150 chipset information
ATU-R (DS) ATU-C (US)
Modem Status: Showtime (DMTDSL_SHOWTIME)
DSL Mode: ITU G.992.1 (G.DMT)
ITU STD NUM: 0x01 0x1
Vendor ID: 'ALCB' 'ANDV'
Vendor Specific: 0x0000 0x0000
Vendor Country: 0x00 0x00
Capacity Used: 43% 74%
Noise Margin: 2.5 dB 17.0 dB
Output Power: 20.0 dBm 12.0 dBm
Attenuation: 48.5 dB 31.5 dB
Defect Status: None None
Last Fail Code: Protocol error received
Selftest Result: 0x00
Subfunction: 0x15
Interrupts: 1333 (0 spurious)
PHY Access Err: 0
Activations: 1
SW Version: 3.8129
FW Version: 0x1A04

Interleave Fast Interleave Fast
Speed (kbps): 2048 0 288 0
Reed-Solomon EC: 5136 0 512 10
CRC Errors: 391 0 8 9
Header Errors: 292 0 6 5
Bit Errors: 0 0
BER Valid sec: 0 0
BER Invalid sec: 0 0

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


Chris.
**********************
Chris Andrew, CCNA, CCSA
chris@iproute.co.uk
**********************

 

[mout]

OK !
This my config interface atm0

ATU-R (DS) ATU-C (US)
Modem Status: Showtime (DMTDSL_SHOWTIME)
DSL Mode: ITU G.992.1 (G.DMT)
ITU STD NUM: 0x01 0x1
Vendor ID: 'ALCB' 'ANDV'
Vendor Specific: 0x0000 0x0000
Vendor Country: 0x00 0x00
Capacity Used: 10% 30%
Noise Margin: 45.0 dB 30.0 dB
Output Power: 19.5 dBm 12.0 dBm
Attenuation: 28.5 dB 11.5 dB
Defect Status: None None
Last Fail Code: None
Selftest Result: 0x00
Subfunction: 0x15
Interrupts: 42637 (0 spurious)
PHY Access Err: 0
Activations: 2
SW Version: 3.670
FW Version: 0x1A04

Interleave Fast Interleave Fast
Speed (kbps): 640 0 160 0
Reed-Solomon EC: 0 0 0 0
CRC Errors: 0 0 0 0
Header Errors: 0 0 1 0
Bit Errors: 0 0
BER Valid sec: 0 0
BER Invalid sec: 0 0

DMT Bits Per Bin
00: 0 0 0 0 0 0 0 0 0 0 0 3 4 4 5 5
10: 0 5 5 5 5 5 5 4 4 4 3 2 0 0 0 0
20: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2
30: 2 2 2 2 2 2 0 2 2 2 2 3 2 2 2 2
40: 0 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3
50: 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 2
60: 2 2 2 2 3 3 3 3 3 3 2 3 3 2 2 2
70: 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
80: 2 2 2 2 2 2 2 2 2 2 2 2 0 2 2 2
90: 2 2 2 2 2 2 0 2 2 2 0 0 2 2 0 0
A0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
B0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
C0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
D0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
E0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
F0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

and when i turn on my cisco they make up atm0 , virtual template and fast ethernet and i show in a configuration that a dialer 0 have take an ip adress ex: 212.117.15.41
this adrress change when i reload my cisco ...
I think that the cisco config is ok for internet but theey don't route the ip packets in my ethernet card ...
Help me please
Tahnk you for us...

 

[ChrisAC]

So, your line is up, you've authenticated and have a dynamic IP address. However, you can't get on the internet from the ethernet side.

What you are missing is NAT! You have "ip nat inside" and "ip nat outside", which is correct but you have no statement that tells the router to nat outgoing traffic from your network. Try the following ..

access-list 5 permit 192.168.0.0 0.0.0.255

ip nat inside source list 5 interface dialer0 overload

This will allow traffic from the 192.168.0.0/24 network to be nated to the IP address of dialer0 (your dynamic IP address).

You will also need a default route ..

ip route 0.0.0.0 0.0.0.0 dialer0

Try that.

Chris.
**********************
Chris Andrew, CCNA, CCSA
chris@iproute.co.uk
**********************

 

[mout]

Super Ca goes! Thank you very much Chris you is the best! Still a small question: how to make to open the accesses has for example: vocal conversation on msn messenger. I do not know if this is a redirection of port or an opening of port. Thank you for your answer in any case!!!

Mout

 

[ChrisAC]

Any connections initiated from the inside should be allowed without opening up any ports. However, if you want to open up ports from the outside and do a static NAT to an inside private IP then you can do a static NAT statement. For example ...

access-list 105 permit tcp host <work IP address> any eq 3389 log
access-list 105 deny tcp any any eq 3389 log
!
ip nat inside source static tcp 192.168.3.2 3389 interface ATM0.1 3389

This allows me to RDP to my machine at home from work. The ACL allows only RDP from my work IP address and denys all others. The static NAT statement forwards all port 3389 requests on my external interface (ATM0.1) to my local machine on the same port.

Chris.
**********************
Chris Andrew, CCNA, CCSA
chris@iproute.co.uk
**********************