Cisco 877 no wan IP

[Peteratabb]

Hello everyone!

I have a new Cisco 877 router which does'nt want to get an IP address from our ADSL provider, if anyone can check my config below that would be great!
The ATM says its UP, and line is UP, but no IP address from our ISP .
I've tryed IP address as 'Negotiated' and 'Dynamic IP' but no joy.

Current configuration : 4480 bytes
!
version 12.4
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname yourname
!
boot-start-marker
boot-end-marker
!
logging buffered 51200 warnings
!
no aaa new-model
clock timezone PCTime 0
clock summer-time PCTime date Mar 30 2003 1:00 Oct 26 2003 2:00
!

ip cef
no ip dhcp use vrf connected
ip dhcp excluded-address 10.10.10.1
!
ip dhcp pool sdm-pool
import all
network 10.10.10.0 255.255.255.248
default-router 10.10.10.1
lease 0 2
!
!
ip auth-proxy max-nodata-conns 3
ip admission max-nodata-conns 3
no ip domain lookup
ip domain name yourdomain.com
!
!
!
archive
log config
hidekeys
!
!
!
!
!
interface ATM0
no ip address
no atm ilmi-keepalive
dsl operating-mode auto
!
interface ATM0.1 point-to-point
pvc 0/38
encapsulation aal5mux ppp dialer
dialer pool-member 1
!
!
interface FastEthernet0
!
interface FastEthernet1
!
interface FastEthernet2
!
interface FastEthernet3
!
interface Vlan1
description $ETH-SW-LAUNCH$$INTF-INFO-HWIC 4ESW$
ip address 10.10.10.1 255.255.255.248
ip nat inside
ip virtual-reassembly
!
interface Dialer0
ip address negotiated
ip nat outside
ip virtual-reassembly
encapsulation ppp
dialer pool 1
dialer-group 1
no cdp enable
ppp authentication chap callin
ppp chap hostname info_xyz
ppp chap password 0 info_xyz
!
ip forward-protocol nd
!
ip http server
ip http authentication local
ip http secure-server
ip http timeout-policy idle 60 life 86400 requests 10000
ip nat inside source list 1 interface Dialer0 overload
!
access-list 1 remark INSIDE_IF=Vlan1
access-list 1 remark SDM_ACL Category=2
access-list 1 permit 10.10.10.0 0.0.0.7
dialer-list 1 protocol ip permit
no cdp run
!
!
!
control-plane
!
line con 0
login local
no modem enable
line aux 0
line vty 0 4
login local
transport input telnet ssh
!
scheduler max-task-time 5000
end

If you need any debug info let me know, i'm still learning the IOS commands but will give it a try!
Thanks!!

[Peteratabb]

Hello Everyone!
I've pasted the results from the "show dsl interface atm 0" command, seems to show the line speed is ok...

Alcatel 20190 chipset information
ATU-R (DS) ATU-C (US)
Modem Status: Showtime (DMTDSL_SHOWTIME)
DSL Mode: ITU G.992.1 (G.DMT) Annex A
ITU STD NUM: 0x03 0x2
Vendor ID: 'STMI' 'TSTC'
Vendor Specific: 0x0000 0x0000
Vendor Country: 0x0F 0xB5
Chip ID: C196 (0)
DFE BOM: DFE3.0 Annex A (1)
Capacity Used: 100% 67%
Noise Margin: 5.0 dB 16.0 dB
Output Power: 16.5 dBm
Attenuation: 61.0 dB 30.5 dB
Defect Status: None None
Last Fail Code: None
Watchdog Counter: 0x21
Watchdog Resets: 0
Selftest Result: 0x00
Subfunction: 0x00
Interrupts: 8252 (0 spurious)
PHY Access Err: 0
Activations: 1
LED Status: ON
LED On Time: 100
LED Off Time: 100
Init FW: init_AMR-3.0.014_no_bist.bin
Operation FW: AMR-3.0.014.bin
FW Source: embedded
FW Version: 3.0.14

Interleave Fast Interleave Fast
Speed (kbps): 2816 0 448 0
Cells: 1342 0 6785100 0
Reed-Solomon EC: 62551 0 19 1
CRC Errors: 143 0 3 0
Header Errors: 130 0 6 3
Total BER: 2975E-9 0E-0
Leakage Average BER: 2703E-9 0E-0

ATU-R (DS) ATU-C (US)
Bitswap: enabled enabled
Bitswap success: 0 0
Bitswap failure: 0 0


I’m getting abit worried that I’m stuck on getting an IP address , as this router will also manage all traffic and VPN connections for our company.

Any hints, tips and help would be much appreciated!

[ThomasMc]

I'm no expert but here goes

How did you confirm that your not getting an ip address? have you tested the connection via the SDM? also wheres you default route and DNS

ip name-server a.b.c.d
0.0.0.0 0.0.0.0 Dialer0

Who is your provider BTW, may be an encapsulation problem

[Peteratabb]

I've been useing the SDM for all the configuration, and the 'Test Connection' gets as far as checking DNS settings and fails - presumably as the router has been unable to obtain the IP & DNS setings from the ISP.

Regarding the name server and default route, i thought the SDM would take care of things like that? but if not then let me know the commands and i'll type them in.

The Provider we're useing is Eclipse who assign us an IP.

[Stoney]

I would follow the troubleshooting steps on this page and make sure you are talking to the ISP.

Do they definitely provide you with IP information via DHCP?

[ThomasMc]

either telnet and then type conf t followed by the above commands(exit with ctrl+z) and then type reload or in the SDM(Full not Express)

Goto Routing to setup default route and then visit Additional tasks -> DNS

[added]
Just looked at your ISP's website and there dns server are so replace a.b.c.d with these(enter 1 at a time)

212.104.130.9
212.104.130.65

[Peteratabb]

Success!
Thank you Stoney & ThomasMC for your comments!

In particular the Cisco PPPoa troubleshooting guide showed me the 'debug ppp neg' command, and i saw the router authenticate and get an IP.

Next step was to manually add the DNS servers to both the router and my laptop,
add the default route on Dialer0 (ticking the 'make as default route' tick box)
Setup the basic firewall
Check the basic NAT settings
and I’m online.

Interestingly, the SDM 'Edit interface/connection' view still shows ATM0.1 IP="no IP address" even though its all working, and i think this was stopping me looking further into the problem.

Next step is to get the router to pass the DNS settings automatically to its DHCP clients, and setup the VPN access, but i'll look at these later.

Thanks again for your helps!

[ThomasMc]

I'm sure the sdm will only display static ip's on the interface, i would also suggest looking at your config for something along the lines of

strict-http action reset alarm

if you find this line i would change it to

strict-http action allow alarm

infomation thanks to the Spicey_One