You can try TCC NS2 which has IPSEC classes. The other simulators that you can try are Agilent's VOIP simulator...
I would still recommend trying out NIST.
Related Q&A from Puneet Mehta
To view network security expert Puneet Mehta's latest advice, see his Public Profile on the IT Knowledge Exchange: http://...continue reading
Find out if there's a difference between a virtual private network (VPN) concentrator and a network access server (NAS) in this explanation from our ...continue reading
Our network security expert explains how to keep unauthorized users from accessing your router's IP address for Internet access in this advice ...continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.