Hi,
Does anyone know how to get ADSL working through a c1117?
We upgraded to one from a 1841 so I just copied the config over but the dialer wont get a IP address from the ISP.
If I look at the dialer int on the 1841 it has a public ip assigned to it from the ISP. But the c1117 doesnt get one.
I tried Ip address negotiate and ip address dhcp. neither worked but the dhcp command did bring up some dhcp debug errors although they didnt show much useful. (On ip address negotiate nothing shows up on dhcp debug)
May 15 10:15:10.622: DHCP: Try 22 to acquire address for Dialer1
*May 15 10:15:10.625: DHCP: allocate request
*May 15 10:15:10.625: DHCP: new entry. add to queue, interface Dialer1
*May 15 10:15:10.626: DHCP: MAC address specified as 0000.0000.0000 (0 0). Xid is 1CD
*May 15 10:15:10.626: DHCP: SDiscover attempt # 1 for entry:
*May 15 10:15:10.627: DHCP: Scan: Option vendor class Identifier 124
*May 15 10:15:10.627: Enterprise ID 9
*May 15 10:15:10.627: vendor-class-data-len 8
*May 15 10:15:10.627: data: C1117-4P
*May 15 10:15:10.627: DHCP: SDiscover: sending 319 byte length DHCP packet
*May 15 10:15:10.627: DHCP: SDiscover 319 bytes
*May 15 10:15:10.627: B'cast on Dialer1 interface from 0.0.0.0
*May 15 10:15:14.163: DHCP: SDiscover attempt # 2 for entry:
*May 15 10:15:14.164: DHCP: Scan: Option vendor class Identifier 124
*May 15 10:15:14.164: Enterprise ID 9
*May 15 10:15:14.164: vendor-class-data-len 8
*May 15 10:15:14.164: data: C1117-4P
*May 15 10:15:14.164: DHCP: SDiscover: sending 319 byte length DHCP packet
*May 15 10:15:14.164: DHCP: SDiscover 319 bytes
*May 15 10:15:14.164: B'cast on Dialer1 interface from 0.0.0.0
*May 15 10:15:18.163: DHCP: SDiscover attempt # 3 for entry:
*May 15 10:15:18.163: DHCP: Scan: Option vendor class Identifier 124
*May 15 10:15:18.164: Enterprise ID 9
*May 15 10:15:18.164: vendor-class-data-len 8
*May 15 10:15:18.164: data: C1117-4P
*May 15 10:15:18.164: DHCP: SDiscover: sending 319 byte length DHCP packet
*May 15 10:15:18.164: DHCP: SDiscover 319 bytes
*May 15 10:15:18.164: B'cast on Dialer1 interface from 0.0.0.0%Unknown DHCP problem.. No allocation possible
*May 15 10:15:31.107: DHCP: Waiting for 60 seconds on interface Dialer1
*May 15 10:16:01.162: DHCP: deleting entry FFFF61FFBDA0 0.0.0.0 from list
*May 15 10:16:01.162: DHCP: Client socket is closed
My config is below. I am assuming the old configuration has changed on these newer routers / OS I just cant seem to find what it should be.
show run
Building configuration...
Current configuration : 7697 bytes
!
! Last configuration change at 16:12:08 UTC Wed Apr 30 2025
!
version 17.9
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
service call-home
platform qfp utilization monitor load 80
platform punt-keepalive disable-kernel-core
platform hardware throughput crypto 50000
!
hostname xxxxxxx
!
boot-start-marker
boot system flash:c1100-universalk9.17.09.04a.SPA.bin
boot-end-marker
!
!
logging buffered 51200 warnings
no aaa new-model
clock summer-time UTC recurring last Sun Mar 1:00 last Sun Oct 2:00
!
!
!
!
!
!
!
ip name-server 1.1.1.1 8.8.8.8
no ip domain lookup
ip domain name xxxxxx.co.uk
!
!
!
login on-success log
!
!
!
!
!
!
!
subscriber templating
vtp version 1
multilink bundle-name authenticated
!
!
!
crypto pki trustpoint TP-self-signed-1566709665
enrollment selfsigned
subject-name cn=IOS-Self-Signed-Certificate-1566709665
revocation-check none
rsakeypair TP-self-signed-1566709665
!
crypto pki trustpoint SLA-TrustPoint
enrollment pkcs12
revocation-check crl
!
!
crypto pki certificate chain TP-self-signed-1566709665
certificate self-signed 01
30820330 30820218 A0030201 02020101 300D0609 2A864886 F70D0101 05050030
31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274
69666963 6174652D 31353636 37303936 3635301E 170D3235 30343134 31343137
quit
!
!
license udi pid C1117-4P sn FCZ2830R22G
memory free low-watermark processor 66007
!
diagnostic bootup level minimal
!
spanning-tree extend system-id
!
enable secret 9
!
username admin privilege 15 secret 9
!
redundancy
mode none
!
controller VDSL 0/2/0
!
!
vlan internal allocation policy ascending
no cdp run
!
!
!
!
!
!
interface GigabitEthernet0/0/0
no ip address
shutdown
negotiation auto
!
interface GigabitEthernet0/1/0
description Internet
switchport mode access
!
interface GigabitEthernet0/1/1
shutdown
!
interface GigabitEthernet0/1/2
shutdown
!
interface GigabitEthernet0/1/3
shutdown
!
interface ATM0/2/0
no ip address
atm oversubscribe factor 2
no atm ilmi-keepalive
pvc 0/38
encapsulation aal5mux ppp dialer
dialer pool-member 1
!
!
interface Ethernet0/2/0
no ip address
shutdown
no negotiation auto
!
interface Vlan1
description internet
ip address xxxxxx xxxxxx
!
interface Dialer1
description ADSL
ip address negotiated
ip access-group 111 in
encapsulation ppp
dialer pool 1
dialer-group 1
ppp authentication chap pap callin
ppp chap hostname xxxxx
ppp chap password 7 xxxxxxx
ppp pap sent-username xxxxxxxxx
!
ip http server
ip http access-class ipv4 23
ip http authentication local
no ip http secure-server
ip http timeout-policy idle 60 life 86400 requests 10000
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 Dialer1
ip ssh time-out 60
ip ssh authentication-retries 2
ip ssh version 2
!
!
!
ip access-list standard 23
10 permit xxxxxxxxx
ip access-list extended 111
10 permit ip any any
dialer-list 1 protocol ip permit
!
!
!
control-plane
!
!
line con 0
transport input none
stopbits 1
line vty 0 4
access-class 23 in
privilege level 15
password 7 xxxxxxxxxx
login local
transport input ssh
line vty 5 14
access-class 23 in
privilege level 15
password 7 xxxxxxxxxxxxxxxxxxxx
login local
transport input ssh
!
call-home
! If contact email address in call-home is configured as sch-smart-licensing@cisco.com
! the email address configured in Cisco Smart License Portal will be used as contact email address to send SCH notifications.
contact-email-addr sch-smart-licensing@cisco.com
profile "CiscoTAC-1"
active
destination transport-method http
!
!
!
!
!
!
end
There was one ATM command which the c1117 didnt accept but I dont know if it affects anything?
"no ip mroute-cache"
I did find that i had to put the dsl operating mode auto into the vdsl controller rather than in the ATM interface. That didnt fix anything though.
