Have you ever looked at an access list and wondered what the port numbers correspond to, other than the obvious ones that are well-known or documented in /etc/services? I’ve been working on ACLs for classification and marking of voice/video control traffic and David Hailey of NetCraftsmen pointed me to a Cisco document that has a nice list of protocols/ports used in the Cisco Unified Communications products.
There are versions for different versions of Cisco’s products. Add “+6.0” or “+7.0” to specify the version you want. For versions older than 6, you’ll need to change the search, replacing “communications” with “callmanager”, because the product name changed. I found that the search string above worked pretty well without designating the version number. It provided links to a number of different product versions.
Good luck with your ACLs!
Re-posted with Permission
NetCraftsmen would like to acknowledge Infoblox for their permission to re-post this article which originally appeared in the Applied Infrastructure blog under http://www.infoblox.com/en/communities/blogs.html