Yes, and with the traceroute option in the icmp engine, you enable the feature and with a traceroute you can see the asa as device.
If i remember correctly, i'm at home but will test it tomorrow...


Pieter-Jan

Op 7 sep 2009 om 21:08 heeft "Tyson Scott" <[email protected]> het volgende geschreven:\

Paul,



By default the ASA will block traceroute. traceroute is sent out with ICMP type 8 but will respond back with ICMP type 3 and 11. Test by sending a traceroute and see the traffic drop.



Regards,



Tyson Scott - CCIE #13513 R&S and Security

Technical Instructor - IPexpert, Inc.


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From: [email protected] [mailto:[email protected]] On Behalf Of Paul Stewart
Sent: Monday, September 07, 2009 1:50 PM
To: [email protected]
Subject: [OSL | CCIE_Security] Traceroute through ASA



By default the ASA is transparent to a traceroute due to the fact that it does not decrement the TTL. In Vol 2, Lab 11 section 1.3-4 it specifies that inside hosts should be able to "successfully" traceroute to devices on the drawing. What are the thoughts on using the method below to make the ASA visible? In my opinion, it is a gray area, but a successful traceroute should show the layer 3 devices.

policy-map global_policy
 class class-default
  set connection decrement-ttl

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