PPPOE configuration for Cisco 851and cisco 870 router

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Aug 6th, 2010
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Hi Guys

I have two cisco 850 and 870 series routers i tryed alot but i am unable to configure PPOE on both of the routers there is no PPPOE enable command available I tryed VPDN s too but no luck any body have some clue

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krishan.saran Sat, 08/07/2010 - 21:10
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I already tried these steps but at step 4 where i enter the protocol command there is no PPPoE option just only l2tp option is there

Command or Action

Step 1

vpdn enable


Router(config)# vpdn enable

Enables VPDN on the router.

Step 2

vpdn-group name


Router(config)# vpdn-group 1

Creates and associates a VPDN group with a customer or VPDN profile.

Step 3



Router(config-vpdn)# request-dialin

Creates a request-dialin VPDN subgroup, indicating the dialing direction, and initiates the tunnel.

Step 4

protocol {l2tp | pppoe}


Router(config-vpdn-req-in)# protocol pppoe

Specifies the type of sessions the VPDN subgroup can establish.

Step 5



Router(config-vpdn-req-in)# exit

Exits request-dialin VPDN group configuration.

Step 6



Router(config-vpdn)# exit

Exits VPDN configuration, returning to global configuration mode.

vragotha Sat, 08/07/2010 - 21:30
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Can you post a 'show ver' and 'show run' ?

krishan.saran Sat, 08/07/2010 - 23:57
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Hi  Thanks for your help

Here is the Show Version

office(config-vpdn-req-in)#do sho ver

Cisco IOS Software, C850 Software (C850-ADVSECURITYK9-M), Version 12.4(15)T13, RELEASE SOFTWARE (fc3)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2010 by Cisco Systems, Inc.

Compiled Wed 07-Apr-10 20:49 by prod_rel_team

ROM: System Bootstrap, Version 12.3(8r)YI4, RELEASE SOFTWARE

office uptime is 8 hours, 12 minutes

System returned to ROM by reload

System restarted at 15:41:12 PCTime Sat Aug 7 2010

System image file is "flash:c850-advsecurityk9-mz.124-15.T13.bin"

This product contains cryptographic features and is subject to United

States and local country laws governing import, export, transfer and

use. Delivery of Cisco cryptographic products does not imply

third-party authority to import, export, distribute or use encryption.

Importers, exporters, distributors and users are responsible for

compliance with U.S. and local country laws. By using this product you

agree to comply with applicable laws and regulations. If you are unable

to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:


If you require further assistance please contact us by sending email to

[email protected].

Cisco 851 (MPC8272) processor (revision 0x300) with 59392K/6144K bytes of memory.

Processor board ID FHK1426601C

MPC8272 CPU Rev: Part Number 0xC, Mask Number 0x10

5 FastEthernet interfaces

128K bytes of non-volatile configuration memory.

20480K bytes of processor board System flash (Intel Strataflash)

Configuration register is 0x2102

Here is the command i was entrenig
office#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
office(config)#vpdn en
office(config)#vpdn enable
office(config)#vpdn-group 1
office(config-vpdn-req-in)#protocol pp
office(config-vpdn-req-in)#protocol ?
  l2tp  Use L2TP
There is no protocol PPPoE
thans what i was doing
Giuseppe Larosa Sun, 08/08/2010 - 05:36
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Hello Krishan,

your router is running 12.4(15)T you don't need anymore vpdn to enable pppoe client on it



there is a section for newer releases

Configuring a PPPoE Client on an Ethernet Interface

Perform this task to configure a PPPoE client on an Ethernet interface.


1. enable

2. configure terminal

3. interface ethernet number

4. pppoe-client dial-pool-number number

Hope to help


krishan.saran Sun, 08/08/2010 - 13:41
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Any body can post the the running configuration on  12.4(15)T IOS with PPPoE configuration complete

I will be rely thankful i don't have much experience of CLI i normally configure through SDM but through SDM i am getting this PPPoE enable error. but if i have the running configuration than i can program, because i have to drive 3hour for that site and i don't want to stuck there Please Please


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