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Cisco CCIE Project Part 2 – Configure OSPF over ATM September 4, 2008

Posted by timsteiner in Information Security, Projects, Tutorials.
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Cisco routing OSPF over ATM configuration

In part 1 of this project we set up an ATM VC and we were able to ping from one router to the other. Now we will set up OSPF routing so that we can share routes between the 2 7200 routers over the ATM link.

This document provides step-by-step instructions for setting up OSPF to connect over an ATM VC

Prerequisites

See Part 1 Configure the ATM Switched Virtual Circuit (SVC)

Procedure

  1. Complete all tasks in Configure the ATM Switched Virtual Circuit (SVC)

  1. Power on devices

  1. Connect to Cisco 7200A via console cable

7200A#

conf t

interface fa2/0

ip address 10.10.1.1 255.255.255.0

no shut

!

router ospf 1

network 10.0.0.0 0.255.255.255 area 0

neighbor 10.1.1.2

*NOTE THE NEIGHBOR COMMAND MUST BE DONE MANUALLY FOR 7200A TO BE ABLE TO FIND AND ROUTE TO 7200B.

7200B#

conf t

interface fa2/0

ip address 10.20.1.1 255.255.255.0

no shut

!

router ospf 1

network 10.0.0.0 0.255.255.255 area 0

neighbor 10.1.1.1

Verify

Both routers should now list remote routes. This can be verified using the “show ip route” command. You should be able to ping 10.20.1.2 from 10.10.1.2, and be able to ping 10.10.1.2 from 10.20.1.2.

IP over ATM Network Diagram

IP over ATM Network Diagram

Cisco CCIE Project – EoMPLS Pseudowire over ATM September 4, 2008

Posted by timsteiner in Information Security, Projects, Tutorials.
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The following 5 part series provides detailed instructions on how to set up a pseudowire over multiple ATM links to carry Ethernet traffic.

Disclaimer

Now I do not claim to be a CCIE, in fact I do not even have any Cisco certs. The following configuration has been tested to provide end-to-end layer 2 connectivity. I am aware that there may be other ways of setting this up. If you know of other better methods feel free to comment on this post.

Background info

I recently started a new job and made the mistake of including Cisco experience on my resume. Having never even finished my CCNA I am not what I would consider a Cisco expert but I am always up for a challenge. Well my first project at my new job was to set up 2 Cisco 7200 VXR routers and 2 Cisco 1010 lightStream Switches over ATM. Furthermore, this ATM link needs to be able to route IP traffic and there needs to a pseudowire that connects end-to-end and simulates an Ethernet LAN. So thats the plan. I spent the next day or two doing research and experimenting with router configs until I got something that works.

Here is basically how the devices are set up, each connected via ATM over multimode fiber.

Cisco 7200A => Cisco 1010A => Cisco 1010B => Cisco 7200B

This project will be broken down into 5 parts

  1. CCIE Project Part 1- Configure the ATM Switched Virtual Circuit (SVC)

  2. Cisco CCIE Project Part 2 – Configure OSPF over ATM

  3. Cisco CCIE Project Part 3 – Configure MPLS Forwarding

  4. Cisco CCIE Project Part 3 – Configure EoMPLS Pseudowire

  5. Configure CE (Customer Edge) Devices

Glossary

ATM – Asyncronous Transfer Mode

OSPF – Open Shortest Path First

EoMPLS – Ethernet over MPLS