ATM port down on 880 VA(M) router

[Attila123]

Hello Everyone,

I'm studying for CCNA and I built a small test lab for practise. I have one 887 VA and one 887 VA-M router connected by their ADSL/VDSL ports using phone cable with RJ45. I followed the basic config guide for the routers, but I can't bring up their ATM0 ports, so I can't initiate L2 connection between them. Can you help me with what I'm missing in configuration, or is it possible to connect them this way for real traffic at all? 
I have attached the info from interface ATM0.

Thank you,

Attila

[Georg Pauwen]

Hello,

how exactly are the routers set up, back to back, that is, the 887 VA and the 887 VA-M connected to each other using a phone cable ?

Post the running configurations (sh run) of both routers...

[Attila123]

Hello, 

Yes, exactly as you said: for now back to back. Later I will use the ethernet ports, but I'm quite confident with that part from my experience and CCNA lessons. But I struggle with this adsl line and I'm not experienced to figure it out on my own, although I tried my best. I have attached the full config of both. 

Thank you.

[Giuseppe Larosa]

Hello @Attila123 ,

please attach your configuration as text files you can use a client like putty to take the text info and then you can copy to a file.

Generally speaking only SDSL allowed for back to back connection with one side pretending to be the central office.

With any ADSL service the back to back is much more difficult to achieve and generally speaking it is not possible as it is not that easy to make the modem to act as central office modem. Most of routers do not support it.

Because it needs to revert directions  and frequencies of tramsmission with the difficulty that ADSL uses 256 tones some in upstream direction and some in downstream direction and CO modem has the directions inverted.

The central office modem in real world is hosted on a linecard on a DSLAM for ADSL services.

Hope to help

Giuseppe

[Attila123]

Hello Giuseppe,

Thank you very much for your response. I would like to bring up those two ATM interfaces and I can't, that is the problem I face. I don't know how to make it work as an SDSL, or SDSL like connection. What should I configure to bring it up at least on L2?

This is router 1:

Current configuration : 1210 bytes
!
version 15.3
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname
!
boot-start-marker
boot-end-marker
!
enable secret 5 $1$WS98$fcuNhA0l1Jl6tRFdCAJrs/
enable password
!
no aaa new-model
memory-size iomem 10
!
ip cef
no ipv6 cef
!
!
multilink bundle-name authenticated
license udi pid CISCO887VA-SEC-K9 sn FCZ1704C655
!
controller VDSL 0
!
interface Ethernet0
no ip address
!
interface ATM0
ip address 192.168.16.1 255.255.255.0
no atm ilmi-keepalive
!
interface ATM0.1 point-to-point
ip address 192.168.15.1 255.255.255.0
pvc 13/32
protocol ip 192.168.15.255 broadcast
!
!
interface FastEthernet0
no ip address
!
interface FastEthernet1
no ip address
shutdown
!
interface FastEthernet2
no ip address
shutdown
!
interface FastEthernet3
no ip address
shutdown
!
interface Vlan1
no ip address
shutdown
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
snmp-server community
!
control-plane
!
line con 0
no modem enable
line aux 0
line vty 0 4
password
login
transport input all
!
end

This is router 2:

Current configuration : 1429 bytes
!
version 15.7
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname
!
boot-start-marker
boot-end-marker
!
enable secret 5 $1$ENA/$bTxh/xVluGUjBECJ.5ogq0
enable password
!
no aaa new-model
no process cpu extended history
no process cpu autoprofile hog
memory-size iomem 10
!
!
ip cef
no ipv6 cef
!
!
multilink bundle-name authenticated
license udi pid CISCO887VA-M-K9 sn FCZ164690P4
!
controller VDSL 0
no cdp run
!
interface Ethernet0
no ip address
shutdown
!
interface ATM0
ip address 192.168.16.2 255.255.255.0
no atm ilmi-keepalive
!
interface ATM0.1 point-to-point
ip address 192.168.15.2 255.255.255.0
pvc 13/32
protocol ip 192.168.15.255
!
!
interface FastEthernet0
no ip address
shutdown
no cdp enable
!
interface FastEthernet1
no ip address
shutdown
no cdp enable
!
interface FastEthernet2
no ip address
shutdown
no cdp enable
!
interface FastEthernet3
no ip address
shutdown
no cdp enable
!
interface Vlan1
no ip address
shutdown
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
no service-routing capabilities-manager
ipv6 ioam timestamp
!
!
control-plane
!
!
vstack
!
line con 0
exec-timeout 0 0
no modem enable
line aux 0
line vty 0 4
password
login
transport input none
!
!
end