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Re: Security test of firewall dose not show UDP port 500 is open

from [Daniel Lucq] Network Security [Permanent Link]
Subject: Re: Security test of firewall dose not show UDP port 500 is open
Date: Tue, 28 Mar 2006 11:10:30 +0200
Well, could be that the IKE service (if it is enabled) only responds to IKE handshake requests containing a supported IKE transform (or vendor ID, authentication type, etc.).

I would suggest using ike-scan to poke a bit at the target with different transforms etc.


Regards,
Daniel

mtk@mrc.dk wrote: 
Hi all,

We have been using Nessus for security scanning the Cisco Pix firewalls we install for 
our custemers. I have one "old" repport showing ISAKMP UDM port 500 is open. 
The firewall isn't updated but now the port has disapeard fro the new rapport?
We have asked Cisco if the securiyt scanner is supposed to find UDP port 500 (I don't 
think so) and a CCIE from Cisco have told us "no the port is hidden."

I wonder how the port can be in the old repport?

If any one has any input please let me know.

Best regards,

MTK

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