I consider myself fortunate to run across a new program called the Cisco ACL Editor and Simulator. This program allows you to create ACLs in Windows GUI application by filling out fields on a form. Even better, it allows you to then take that ACL and simulate what traffic would pass through the ACL. This way, you can test your ACL’s before you apply them, saving a huge amount of time and effort.
The Cisco ACL Editor and Simulator is written by a sharp young programmer and Cisco expert from the United Kingdom. You can download and evaluation for free.
I spoke with the developer, Gareth O. Evans, and he said that the Cisco ACL Editor and Simulator was developed in C#.NET (.NET 2.0) as part of a final year BSc (Hons) Computer Networks degree while studying at the University of Wales, Wrexham, North Wales, United Kingdom.
Gareth said that these are some of the possible developments for the application in the future:
- TCP/UDP Port Range
- Port Name Recognition (www, dns, smtp, pop3, ntp, ftp, ftp-data etc)
- A visual WildCardMask Editor for new Cisco Router users!
The application is available as a 30 day eval and then it is available for purchase at a reasonable cost after that.
Here is what it looks like to create and edit standard ACLs with the Cisco ACL Editor:
Here is what it looks like to create and edit extended ACLs with the Cisco ACL Editor:
And here is a screenshot of how you can simulate traffic passing through (or not passing through) the ACLs you created – a very powerful feature!
To learn more about our Cisco CCNA video training, click here.
Or, to download a free evaluation copy of the Cisco ACL Editor and Simulator, click here.