To simulate voice over IPSec VPNs which simulators work?

To simulate voice over IPSec VPNs which simulators work?

I want to simulate voice over IPSec VPNs but I couldn't install NIIST (there were problems in the SSF Network Models (SSFNet) installation) nor could I use the web-based IPSec/IKE testing tool, and in Network Simulator 2 (NS2) there is no IPSec code. Can you help me figure out how to do this?

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You can try TCC NS2 which has IPSEC classes. The other simulators that you can try are Agilent's VOIP simulator and OPNET.

I would still recommend trying out NIST.

This was first published in May 2008