1841 PPPOE - Static ip configuration issues - No Connectivity to ISP

[Melvinb1981]

Good Day, 

Hoping for assistance,

I have a Cisco 1841 Router that i want to connect up to my ISP modem. (They requested my Mac Address of the original Router Not Cisco - I have however cloned the Mac Address to my Cisco router trying to rule that out as an issue - Wanting to use this instead of the ISP provided router.) 

I have also tried using both chap and pap , running debug commands this should allow some sort of indication if its an authentication issue but no display of errors. 

I have not configured any nat configurations as of yet im literally trying to ping any address within the console port

What has been provided from the ISP side is the following:

• Static IP Address
• Subnet Mask
• Gateway
• DNS Settings
• PPPOE Username & Password

Router#show run

Router#show running-config

Building configuration...

Current configuration : 1295 bytes

!

! Last configuration change at 12:11:18 UTC Mon Jan 2 2006

! NVRAM config last updated at 12:11:06 UTC Mon Jan 2 2006

! NVRAM config last updated at 12:11:06 UTC Mon Jan 2 2006

version 15.1

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption

!

hostname Router

!

boot-start-marker

boot-end-marker

!

!

!

no aaa new-model

!

dot11 syslog

ip source-route

!

!

!

!

!

ip cef

no ipv6 cef

!

multilink bundle-name authenticated

!

crypto pki token default removal timeout 0

!

!

!

!

license udi pid CISCO1841 sn FCZ094020LM

!

redundancy

!

!

controller T1 0/0/0

!

controller T1 0/0/1

!

!

!

!

!

!

!

!

interface FastEthernet0/0

 no ip address

 duplex auto

 speed auto

 pppoe enable group global

 pppoe-client dial-pool-number 10

!

interface FastEthernet0/1

 no ip address

 shutdown

 duplex auto

 speed auto

!

interface Dialer1

 ip address *.*.*.* 255.255.254.0

 encapsulation ppp

 dialer pool 10

 ppp authentication pap callin

 ppp pap sent-username ***************@du.ae password 0 *****************

 ppp ipcp route default

!

ip forward-protocol nd

no ip http server

no ip http secure-server

!

!

!

disable-eadi

!

!

!

!

!

!

control-plane

!

!

!

line con 0

line aux 0

line vty 0 4

 login

 transport input all

!

scheduler allocate 20000 1000

end

Router#

[Melvinb1981]

Hello,

Below is default and i manually changed the config to full duplex as well still no joy. I believe it might be and issue from the isp side im not certain what other tests i can do i have copied the running config again at the bottom in can i missed something, thanks for the assistance and patience.

Router#show int fast 0/0
FastEthernet0/0 is up, line protocol is down
Hardware is Gt96k FE, address is 0015.2b24.34e0 (bia 0015.2b24.34e0)
MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Auto-duplex, Auto Speed, 100BaseTX/FX
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 07:35:16, 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: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes
Received 0 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog
0 input packets with dribble condition detected
3697 packets output, 223531 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out

xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Router#show int fast 0/0
FastEthernet0/0 is up, line protocol is up
Hardware is Gt96k FE, address is ccbe.5990.e8a2 (bia 0015.2b24.34e0)
MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, 100BaseTX/FX
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 00:00:00, 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: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes
Received 0 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog
0 input packets with dribble condition detected
3813 packets output, 235676 bytes, 0 underruns
0 output errors, 0 collisions, 6 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped ou

xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Router#show running-config
Building configuration...

Current configuration : 1576 bytes
!
! Last configuration change at 20:07:33 UTC Mon Jan 2 2006
! NVRAM config last updated at 12:07:44 UTC Mon Jan 2 2006
! NVRAM config last updated at 12:07:44 UTC Mon Jan 2 2006
version 15.1
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
boot-start-marker
boot-end-marker
!
!
!
no aaa new-model
!
dot11 syslog
ip source-route
!
!
!
!
!
ip cef
no ipv6 cef
!
multilink bundle-name authenticated
!
crypto pki token default removal timeout 0
!
!
!
!
license udi pid CISCO1841 sn FCZ094020LM
!
redundancy
!
!
controller T1 0/0/0
!
controller T1 0/0/1
!
!
!
!
!
!
!
!
interface FastEthernet0/0
mac-address ccbe.5990.e8a3
no ip address
ip mtu 1452
shutdown
speed 100
full-duplex
pppoe enable group global
pppoe-client dial-pool-number 10
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Dialer1
ip address X.X.X.X 255.255.254.0
ip mtu 1492
ip virtual-reassembly in
encapsulation ppp
ip tcp adjust-mss 1452
dialer pool 10
dialer-group 1
ppp authentication pap callin
ppp chap hostname @du.ae
ppp chap password 0 
ppp pap sent-username @du.ae password 0 
ppp ipcp route default
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
ip route 0.0.0.0 0.0.0.0 Dialer1
!
dialer-list 1 protocol ip permit
disable-eadi
!
!
!
!
!
!
control-plane
!
!
!
line con 0
line aux 0
line vty 0 4
login
transport input all
!
scheduler allocate 20000 1000
end

Router#

[paul driver]

Show with hard coded speed/duplex setting the line protocol comes up - however than you post the run config and the same interface is admin shutdown!!

[Melvinb1981]

Hi ,

Sorry was shutting the port down then up again for testing and copied over the code before i brought it back up. Still however the same.

No pppoe session still. Im thinking an issue from the isp side still.

There should be some sort debug packet information or something in display for pppoe session however and its not generating anything

Router#show pppoe session
1 client session

Uniq ID PPPoE RemMAC Port VT VA State
SID LocMAC VA-st Type
N/A 0 0000.0000.0000 Fa0/0 Di1 N/A PADISNT
0000.0000.0000

[Georg Pauwen]

What type/make/model is the ISP modem you are trying to replace with the 1841 ?

[paul driver]

The device you have swapped out is it a  Calix manufacturer?

If it is then this kind of device suggests its an optical network terminal /router gateway combination and if so then you wont be able to swap it out due to the in built ONT transceiver.

So at best I think you need to bridge the device but then will it allow you to do so?
I do see some ppoe credentials you have been trying to use however have these been confirmed by yourr ISP or have you just taken them off the other device as you may be missing something?

At this time if the above is correct its looking like your only option i can see is to only double nat your Cisco router behind this "calix ont/gateway router"

[Melvinb1981]

Yee correct its a calix

[paul driver]

---

@Melvinb1981 wrote:
Yee correct its a calix

---

So then it is very possible your only option is to double nat your cisco behind this calix device

[Georg Pauwen]

Which Calix model (e.g. the C844G) ?

[Melvinb1981]

844e-2

[Georg Pauwen]

Hello,

if you look at the drawing on page 5 of the attached guide, what port are you connecting the WAN cable to ?

And how did you clone the MAC address ? The problem is that the 1841 router interface has a burned-in address (BIA), that might be the problem. I don't think you can actually clone the BIA.

https://www.mypremieronline.com/assets/documents/giga-center-quick-start-guide.pdf

[paul driver]

@Georg Pauwen  Every interface had a BIA 

the OP as taken that MAC address from the Cali  and appended to the gig interface of the Cisco router  “cloned” it so to speak

[Georg Pauwen]

What I am after is if the ISP might have implemented measures to prevent ARP spoofing and MAC address cloning. I know that some ISPs, in addition to registering the MAC address of a device, also use data/frame sequence numbering, or OS fingerprinting. So simply cloning the MAC address of the interface (with the mac-address H.H.H interface command) might not work.

I would first check with the ISP if what the user wants to do is even allowed, and hence, possible.

[paul driver]

Hello

tbh - I doubt any isp or manufacturer will officially allow their own devices to be cloned - however it does happen and some cases it works other times it doesn’t but getting back to the OP  even if this is allowed looking at those calix devices on their web site they are mostly ONT/gateways so my understanding you still won’t be able to use that Cisco box without that calix also being connected and then to use the Cisco box as a primary gateway the calix box needs to be bridged which again it doesn’t seem you can do and if it does let’s you then you need the correct ppoe creds off the isp 

however I could be totally wrong here as I am only going by what I have read regard these calix devices.

[Melvinb1981]

Hi,

The top box in the pic is the ont box where the fibre goes into. It then
runs the rj45 cable to the calix box.

[Georg Pauwen]

I would call the ISP and ask them for assistance. If they block anything, they'll probably tell you right away...