Cisco 2620 + WIC-1ADSL on Esat BT DSL

Rev · 22-01-2008 9:30pm #1

Hi,

I've recently gotten a Cisco 2620 with a WIC-1ADSL that I want to use with my Esat BT DSL connection at home.
However, I am unable to get it to connect, if anyone could tell me whats wrong with my config below.. It would be most appreciated

Router#sho run
Building configuration...

Current configuration : 1228 bytes
!
version 12.2
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
enable secret 5 
enable password 
!
ip subnet-zero
!
!
!
vpdn enable
!
vpdn-group pppoe
 request-dialin
  protocol pppoe
!
!
!
!
!
!
!
!
!
!
!
!
mta receive maximum-recipients 0
!
!
!
!
interface ATM0/0
 no ip address
 no atm ilmi-keepalive
 pvc 8/35
  pppoe-client dial-pool-number 1
 !
 dsl operating-mode auto
!
interface FastEthernet0/0
 ip address 10.0.0.1 255.255.255.0
 ip nat inside
 ip tcp adjust-mss 1452
 speed auto
 full-duplex
!
interface Serial0/0
 no ip address
 shutdown
 no fair-queue
!
interface Dialer1
 mtu 1492
 ip address negotiated
 ip nat outside
 encapsulation ppp
 dialer pool 1
 ppp chap hostname <myusername@btbb>
 ppp chap password 0 <mypassword>
 ppp pap sent-username <myusername@btbb> password 0 <mypassword>
!
ip nat inside source list 1 interface Dialer1 overload
ip classless
ip route 0.0.0.0 0.0.0.0 Dialer1
ip http server
!
!
access-list 1 permit 10.5.130.32 0.0.0.31
!
call rsvp-sync
!
!
mgcp profile default
!
!
!
dial-peer cor custom
!
!
!
!
line con 0
line aux 0
line vty 0 4
 password <mypassword>
 login
!
!
end

And the show ver (if it helps)

Router#sho ver
Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600-IS-M), Version 12.2(13)T16, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2005 by cisco Systems, Inc.
Compiled Thu 14-Apr-05 15:01 by yiyan
Image text-base: 0x80008098, data-base: 0x8184113C

ROM: System Bootstrap, Version 12.1(3r)T2, RELEASE SOFTWARE (fc1)
ROM: C2600 Software (C2600-IS-M), Version 12.2(13)T16, RELEASE SOFTWARE (fc1)

Router uptime is 31 minutes
System returned to ROM by reload
System image file is "flash:c2600-is-mz.122-13.T16.bin"

cisco 2620 (MPC860) processor (revision 0x600) with 61440K/4096K bytes of memory
.
Processor board ID JAD060505BN (4117462926)
M860 processor: part number 0, mask 49
Bridging software.
X.25 software, Version 3.0.0.
1 FastEthernet/IEEE 802.3 interface(s)
1 Serial network interface(s)
1 ATM network interface(s)
32K bytes of non-volatile configuration memory.
16384K bytes of processor board System flash (Read/Write)

Configuration register is 0x2102

Thanks in advance,
Rev

Ruaidhri · 25-01-2008 4:41pm

What does sh logg look like?
What do you see if you debug dialer? (eh: cat#debug dialer ).
Dont forget to "undebug all"

What's the output of 'cat#sh ip int br' (show ip interface brief)?

Regards,
Ruairi

ZygOte · 25-01-2008 8:55pm

try adding this to your dialer1

dialer pool 1
dialer remote-name redback
dialer-group 1
ppp authentication pap chap callin

also are you getting as far as connecting at all? i dont know a huge amount of cisco, but i dont like the look of your access lists, just looks wrong

does "sh int dialer1" show you an ip address? if it does then your are connecting but your access lists are stoppping you

merkuree · 27-01-2008 11:57am

Just a suggestion.....

You appear to be matching source traffic in the 10.5.130.32/27 subnet and applying NAT overload as it passes through your ext interface.

Have you tried to connect your router e0 interface to a hub.....and place a machine with a static IP in the 10.0.0.x/24 subnet on that hub (using 10.0.0.1 as the machine gateway) and test?

I do not know the detail of your internal network.....looks like you may have some internal router on the 10.5.130.32 net other than the 2620.

I guess check the following:

The default gateway for your 10.5.130.32 subnet should be between 10.5.130.33 - 10.5.130.62.

Do you may have a default route set up on any internal device pointing towards 10.0.0.1?

Plus, you may need a reciprical route on the 2620 to get to the internal 10.5.130.32 net.

ip route 10.5.130.32 255.255.255.224 10.0.0.x

Rev · 27-01-2008 9:24pm

Sorry for the delayed answers, I was away for a while.

Ruaidhri wrote: »

What does sh logg look like?

Router#sh logg
Syslog logging: enabled (0 messages dropped, 1 messages rate-limited, 0 flushes, 0 overruns)
    Console logging: level debugging, 17 messages logged
    Monitor logging: level debugging, 0 messages logged
    Buffer logging: disabled
    Logging Exception size (4096 bytes)
    Count and timestamp logging messages: disabled
    Trap logging: level informational, 22 message lines logged

Ruaidhri wrote: »

What do you see if you debug dialer? (eh: cat#debug dialer ).

Router#debug dialer
Dial on demand events debugging is on

I left that for 5 mins and nothing showed

Ruaidhri wrote: »

Dont forget to "undebug all"
What's the output of 'cat#sh ip int br' (show ip interface brief)?

Router#sh ip int br
Interface                  IP-Address      OK? Method Status                Protocol
FastEthernet0/0            10.5.130.45     YES NVRAM  up                    up      
ATM0/0                     unassigned      YES NVRAM  up                    up      
Serial0/0                  unassigned      YES NVRAM  administratively down down    
Dialer1                    unassigned      YES NVRAM  up                    up      
Virtual-Access1            unassigned      YES unset  up                    up

Ruaidhri wrote: »

Regards,
Ruairi

Rev · 27-01-2008 9:25pm

ZygOte wrote: »

try adding this to your dialer1

dialer pool 1
dialer remote-name redback
dialer-group 1
ppp authentication pap chap callin

I tried adding that and no luck.

ZygOte wrote: »

also are you getting as far as connecting at all? i dont know a huge amount of cisco, but i dont like the look of your access lists, just looks wrong

does "sh int dialer1" show you an ip address? if it does then your are connecting but your access lists are stoppping you

Router#sh int dialer1
Dialer1 is up (spoofing), line protocol is up (spoofing)
  Hardware is Unknown
  Internet address will be negotiated using IPCP
  MTU 1492 bytes, BW 56 Kbit, DLY 20000 usec, 
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation PPP, loopback not set
  DTR is pulsed for 1 seconds on reset
  Last input never, output never, output hang never
  Last clearing of "show interface" counters 00:48:03
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: weighted fair
  Output &#179;?     Reserved Conversations 0/0 (allocated/max allocated)
     Available Bandwidth 42 kilobits/sec
  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
     0 packets output, 0 bytes

Rev · 27-01-2008 9:27pm

merkuree wrote: »

Just a suggestion.....

You appear to be matching source traffic in the 10.5.130.32/27 subnet and applying NAT overload as it passes through your ext interface.

Have you tried to connect your router e0 interface to a hub.....and place a machine with a static IP in the 10.0.0.x/24 subnet on that hub (using 10.0.0.1 as the machine gateway) and test?

I do not know the detail of your internal network.....looks like you may have some internal router on the 10.5.130.32 net other than the 2620.

I guess check the following:

The default gateway for your 10.5.130.32 subnet should be between 10.5.130.33 - 10.5.130.62.

Do you may have a default route set up on any internal device pointing towards 10.0.0.1?

Plus, you may need a reciprical route on the 2620 to get to the internal 10.5.130.32 net.

ip route 10.5.130.32 255.255.255.224 10.0.0.x

Sorry, I had the wrong ip address in the config, I'm able to communicate with the 2620, but I cant get it to establish a working DSL connection

My network is kinda weird..

All my systems are on 10.5.130.32/27 subnet

2620 is on 10.5.130.45
I have another router on 10.5.130.33 that has a route to the rest of the 10.x.x.x network

merkuree · 28-01-2008 5:18am

I do not see any traffic based on your output.

Was this an existing link which worked with another device or is ths a newly prvisioned line?

Regardless, I would contact BT and verify the following config and that they see lmi on their side...plus that they are trying to assign you a dhcp lease:

no atm ilmi-keepalive
pvc 8/35
pppoe-client dial-pool-number 1
!
dsl operating-mode auto

Rev · 28-01-2008 8:17am

Its an existing link that works with the Esat supplied modem.

From what I can tell, its dialing in ok, but its not setting up the PPPoE connection.

eringobragh · 28-01-2008 8:41am

Try

access-list 1 permit 10.5.130.32 0.0.0.31 any
dialer-list 1 protocol ip permit

loyatemu · 28-01-2008 12:28pm

eringobragh wrote: »

Try

access-list 1 permit 10.5.130.32 0.0.0.31 any
dialer-list 1 protocol ip permit

you would also need

dialer-group 1

on the dialer interface, but I don't think you need to define dialer lists for vpdn dialin (though he's running an old IOS so maybe he does).

On my BT connection my username is @iolbb rather than @btbb - are you sure the login details are correct. The config otherwise looks ok. Don't think its a NAT problem as you're not getting a PPPoE connection in the first place.

ZygOte · 28-01-2008 1:03pm

Dialer1 is up (spoofing), line protocol is up (spoofing)
Hardware is Unknown
Internet address will be negotiated using IPCP

your not getting as far as "dialing" so thats where to concentrate on your problem. if you were connecting when you run a sh int dialer1 it should show you an ip address in the output, but as it states "internet address will be negotiated" you may need to turn on some debugging around your dialer and on authentication

ZygOte · 28-01-2008 2:40pm

heres a copy of my cisco config for comparison anyway, im on eircom and im not using any access lists or NAT as i have static addresses and a firewall behind it , but the config my help you anyway.

Current configuration : 1347 bytes
!
version 12.2
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname x.x.x
!
enable secret 5 XXXXXXXXXXXXXXXXXXXX
!
memory-size iomem 20
ip subnet-zero
!
!
ip name-server 159.134.237.6
!
vpdn enable
!
vpdn-group 1
 request-dialin
 protocol pppoe
 ip mtu adjust
!
!
!
!
interface ATM0
 no ip address
 no atm ilmi-keepalive
 pvc 8/35
  pppoe-client dial-pool-number 1
 !
 dsl operating-mode auto
!
interface ATM0.1 point-to-point
!
interface FastEthernet0
 ip address x.x.x.x 255.255.255.248
 ip tcp adjust-mss 1452
 speed auto
 snmp ifindex persist
 no cdp enable
!
interface Dialer1
 ip unnumbered FastEthernet0
 encapsulation ppp
 dialer pool 1
 dialer remote-name redback
 dialer-group 1
 no cdp enable
 ppp authentication pap chap callin
 ppp chap hostname X
 ppp chap password 7 X
!
!
ip classless
ip route 0.0.0.0 0.0.0.0 Dialer1
no ip http server
ip pim bidir-enable
!
!
access-list 2 permit x.x.x.x
dialer-list 1 protocol ip list 1
no cdp run
!
line con 0
line aux 0
line vty 0 4
 login local
!
scheduler max-task-time 5000
no scheduler allocate
end

you can ignore the ip unnumbered fastethernet0 under my dialer1, this is used to bind the ip address of the dsl side directly to the ethernet port on the router.

hope this helps

merkuree · 29-01-2008 1:23pm

If you are still having issues with that config, try this...

vpdn enable

no vpdn logging

vpdn-group pppoe

request-dialin

protocol pppoe

interface FastEthernet0

ip address a.b.c.d x.x.x.x

ip nat inside

interface ATM0

no ip address

no atm ilmi-keepalive

bundle-enable

dsl operating-mode auto

hold-queue 224 in

interface ATM0.1 point-to-point

pvc 8/35

pppoe-client dial-pool-number 1

interface Dialer1

ip address negotiated

ip mtu 1492

ip nat outside

encapsulation ppp

dialer pool 1

ppp authentication chap callin

ppp chap hostname <yourusername>

ppp chap password <yourpassword>

ip nat inside source list 1 interface Dialer1 overload

ip classless

ip route 0.0.0.0 0.0.0.0 dialer1

no ip http server

access-list 1 permit 10.5.130.32 0.0.0.31

Cisco 2620 + WIC-1ADSL on Esat BT DSL

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