Thanks, Piotr,
I thought that "virtual http" and "authentication listener" are two different 
methods. And using "virtual http" requires an additional IP address which is 
luxury in my case ;)

Eugene

From: Piotr Matusiak [mailto:[email protected]]
Sent: 04 January 2012 04:04
To: Eugene Pefti
Cc: ccie security
Subject: Re: [OSL | CCIE_Security] Cut-through proxy authentication with HTTP 
redirection

Hi Eugene,

The ASA tries to open up ASDM connection.

To achieve what you want configure the following:

virtual http 192.168.1.99
aaa authentication listener https inside port 1111 redirect


Then you'll be able to connect to https://192.168.1.99 and be redirected to 
port 1111

Regards,
Piotr

2012/1/4 Eugene Pefti <[email protected]<mailto:[email protected]>>

Hello everyone,

I started the New year with my resolution to get back to CCIE studies and 
immediately I was challenged by the client of us asking to configure them 
network access controls with cut-through proxy authentication.

Their particular task was to authentication the traffic that is not part of 
four well-known protocols (FTP, Telnet, HTTP and HTTPs) that would trigger 
authentication in the classic situation.

They need to authenticate RDP and SSH traffic through the ASA and I followed 
this document published at Cisco support forum:

https://supportforums.cisco.com/docs/DOC-14842



My intention was to have users open their web browser, connect to the ASA 
interface IP address via HTTPS, authenticate and voila, the RDP and SSH traffic 
defined in the authentication ACL would be authenticated.



I.e.

access-list CTP_AUTH extended permit tcp any any eq https
access-list CTP_AUTH extended permit tcp any any eq 3389
access-list CTP_AUTH extended permit tcp any any eq ssh



aaa authentication match CTP_AUTH inside LOCAL

aaa authentication listener https inside port 1111



Then I go to https://192.168.1.200:1111 (where 192.168.1.200 is the ASA inside 
IP address) to authentication against a local user database and it doesn't 
work. The ASA rewrites the URL and says "File not found".

I don't want to use virtual HTTP for the reasons described in the above said 
document. Am I missing something? Is it really an approvement or just a 
documentation defect misleading people ?



Eugene



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