RE: firewall or VPN concentrator ???

From: Paul Melson (pmelson@gmail.com)
Date: Wed May 10 2006 - 10:40:49 EDT


-----Original Message-----
Subject: firewall or VPN concentrator ???

> It strongly pointed that a VPN server was running on that IP, but ike-scan
returned negative
> result. Do you have any suggestions as to what device is using that IP?

Since you have an open TCP port, have you tried 'nmap -O' against it? If
so, what's the fingerprint look like? Can you match it to anything? Cisco
VPN Concentrators are fairly unique in terms of both hardware and software,
and as such the TCP fingerprint is distinguishable from say a router or a
PIX.

Having ike-scan find 0 transforms usually means that the VPN gateway is
either configured only for peer-to-peer IPSec tunnels, or not configured
for IPSec at all. It doesn't mean much about the type of device itself
beyond the inferences you can draw from the way it's been deployed.

PaulM

------------------------------------------------------------------------------
This List Sponsored by: Cenzic

Concerned about Web Application Security?
Why not go with the #1 solution - Cenzic, the only one to win the Analyst's
Choice Award from eWeek. As attacks through web applications continue to rise,
you need to proactively protect your applications from hackers. Cenzic has the
most comprehensive solutions to meet your application security penetration
testing and vulnerability management needs. You have an option to go with a
managed service (Cenzic ClickToSecure) or an enterprise software
(Cenzic Hailstorm). Download FREE whitepaper on how a managed service can
help you: http://www.cenzic.com/news_events/wpappsec.php
And, now for a limited time we can do a FREE audit for you to confirm your
results from other product. Contact us at request@cenzic.com for details.
------------------------------------------------------------------------------



This archive was generated by hypermail 2.1.7 : Sat Apr 12 2008 - 10:55:55 EDT