Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17


I need help configuring a Cisco 2621 Router with an ADSL WIC Card

Posted on 2004-10-04
Medium Priority
Last Modified: 2012-06-21
I am attempting to configure my 2621 for the first time with my ADSL WIC in place and am just wondering if anyone has any sample configs on how to do this.  I have attempted before but unsuccessful and have since reloaded IOS and am loading from the ground up.  Thank you in advance.
Question by:nshoe18
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
LVL 79

Expert Comment

ID: 12221314
Several different ways, depending on how what your provider requires:

Use this as basic config:

Then add in your nat statements as required...
Other very useful links within the posted links...

Accepted Solution

tevens earned 375 total points
ID: 12250533

Try the following for static addresses from the provider.   If using PPPoE see further down...

------STATIC ISP Config--------
! Static with ADSL
bridge irb

interface ATM0/0
 no ip address
 no atm ilmi-keepalive
 pvc 0/35
  encapsulation aal5snap
 dsl operating-mode auto
 bridge-group 1

! Must use BVI as 99% of all providers offer bridged service.
int bvi 1
   ip addr <static ISP address> <mask>

!PPPoE with ADSL....

vpdn enable
vpdn-group 1
  protocol pppoe

interface ATM0/0
 no ip address
 no atm ilmi-keepalive
 dsl operating-mode auto
interface ATM0/0.1 point-to-point
 pvc 0/35
  pppoe-client dial-pool-number 1

interface Dialer1
 ip address negotiated
 ip nat outside
 encapsulation ppp
 dialer pool 1
 ppp authentication pap callin
 ppp pap sent-username <username> password <password>

int e0/0
   ip addr <private inside IP> <mask>
   ip nat inside

ip nat inside source list NAT-INET interface Dialer1 overload
ip access-list extended NAT-INET
 permit ip <private inside net> <private inside mask> any

LVL 79

Expert Comment

ID: 13688759
Do you need more information?
Have you resolved this problem?
Can you close this question?

Author Comment

ID: 13754144
So if I set it up for static as stated above, I need to setup the BVI 1 to be the external address and I will set up my FA 0/0 to be the internal address of my network.  Then I need to setup my routs between the two networks?  Just making sure I have it all straight in my mind.

Featured Post

Portable, direct connect server access

The ATEN CV211 connects a laptop directly to any server allowing you instant access to perform data maintenance and local operations, for quick troubleshooting, updating, service and repair.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

New Server  was moved from behind Router R2 f0/1 to behind router R1 int f/01 and has now address But we want users still to be able to connected to it by old IP. How to do it ? We can used destination NAT (DNAT).  In DNAT…
The Cisco RV042 router is a popular small network interfacing device that is often used as an internet gateway. Network administrators need to get at the management interface to make settings, change passwords, etc. This access is generally done usi…
After creating this article (, I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (, I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…

688 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question