Package ike-scan

IKE protocol tool to discover, fingerprint and test IPsec VPN servers

http://www.nta-monitor.com/wiki/index.php/Ike-scan_User_Guide

ike-scan is a command-line tool that uses the IKE protocol to discover,
fingerprint and test IPsec VPN servers.

General Commands
Command Description
ike-scan Discover and fingerprint IKE hosts (IPsec VPN servers)
psk-crack Crack IKE Aggressive Mode Pre-Shared Keys