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IOS Firewall - CBAC

Written by Rene Molenaar on . Posted in Security

Scenario:

As the network engineer for your company you are responsible for all network-related tasks. One day your security officer comes to you and asks is you can further enhance the network security. He wants you to implement an IOS Firewall feature to protect incoming traffic.

Goal:

  • All IP addresses have been configured for you.
  • Router Mainframe is configured as a webserver, telnet is enabled as well.
  • You are not allowed to remove the access-list on the F1/0 interface of router FW.
  • Traffic originated from Mainframe is not allowed to reach router Host.
  • Router host should be able to telnet into router mainframe.

IOS:

c3640-jk9o3s-mz.124-16.bin

Topology:

IOS Firewall CBAC

Video Solution:

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Comments (3)

  • avatar
    bertyom1
    2011-01-24 17:03:09

    Hi Rene, Great work! can you please post the final configs for this lab? thanks

  • avatar
    ReneMolenaar
    2011-01-31 05:10:21

    Hey there,

    I will once i get home from holiday in about 3 weeks.

    For now, check out this document:

    http://www.ciscopress.com/articles/article.asp?p=26533&seqNum=5

    In a single page it explains you how CBAC works and how to configure it. I think this will help you to get through the lab.

  • avatar
    talaltk
    2011-09-07 23:23:39

    cmon this was too easy :P lets raise it up a notch to CCIE level ;)