I would be happy to conduct thorough IDS, IPS, or firewall testing for your environment too! Send an email to richard at taosecurity dot com if you are interested in testing your network. I agree with the conclusion of the article: “I can’t stress enough the need for a thorough bake-off in your own network. It’s likely to be very different from a test lab environment and may throw up some very interesting challenges for the vendors,” says Bob Walder of the NSS Group.”]
Source: https://taosecurity.blogspot.com/2005/06/article-on-ips-evaluations-thanks-to.html