Testing ISAKMP with netcat

Reading Time: 6 minutes The Scenario In the course of my day to day job, I interact with VPNs on many devices (primarily IPSec VPNs on the Cisco ASA).  Often times the the simplest way to test an IPSec VPN is to fire up vpnc in a VM, change the config file as needed, and validate the connection. Sometimes though, you need to be more granular with your testing.  Perhaps the person controlling the other endpoint/peer is not in charge of the intermediate network, and you

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