Ethereal-users: RE: [Ethereal-users] Decoding Cisco VSA

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From: "Deepa Gandhavalli Ramaniah -X (dgandhav - HCL at Cisco)" <dgandhav@xxxxxxxxx>
Date: Mon, 24 Apr 2006 10:53:26 +0530

Hi Martin,

 

Many thanks for your reply.

 

Could you also help me in decoding the following attribute values?

1. T:Vendor Specific(26) l:21, vendor:Cisco(9)

      T:Cisco Command Info(252) l:15, value:01333830353538323533383930

 

I believe this is account-logon for the username 380558253890. Please correct me if I am wrong.

 

2.  T:Vendor Specific(26) l:21, vendor:Cisco(9)

       T:Cisco Command Info(252) l:15, value:042026

 

I believe this is account-ping. Please correct me if I am wrong.

 

3. T:Vendor Specific(26) l:21, vendor:Cisco(9)

       T:Cisco Command Info(252) l:15, value:0B4F30313030305F4B425333

 

I believe this is service-logon for the service name O00100_KBS3. Please correct me if I am wrong.

 

Many thanks,

Deepa

 

From: ethereal-users-bounces@xxxxxxxxxxxx [mailto:ethereal-users-bounces@xxxxxxxxxxxx] On Behalf Of Visser, Martin
Sent: Monday, April 24, 2006 3:00 AM
To: Ethereal user support
Subject: RE: [Ethereal-users] Decoding Cisco VSA

 

Deepa,

 

If I'm not incorrectly interpreting http://www.cisco.com/en/US/products/hw/iad/ps4349/products_installation_guide_chapter09186a008007e511.html , the VSA with sub-attribute ID of 252 from Cisco (9) is "Command-code"

 

The code for this attribute according to your dump begins with hex 0C, which I think the cisco doc refers to as octal or \014 or "Service Logoff". The remain Hex is converted with the following Perl one-liner 

 

perl -e '$h = pack "H*", "4F30303130305F4B425333"; print $h'

 

To give the user name "O00100_KBS3"

 

Martin Visser

Technology Consultant
Consulting & Integration
Technology Solutions Group - HP Services

410 Concord Road
Rhodes NSW  2138
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From: ethereal-users-bounces@xxxxxxxxxxxx [mailto:ethereal-users-bounces@xxxxxxxxxxxx] On Behalf Of Deepa Gandhavalli Ramaniah -X (dgandhav - HCL at Cisco)
Sent: Saturday, 22 April 2006 4:14 PM
To: Ethereal user support
Subject: RE: [Ethereal-users] Decoding Cisco VSA

Hi all,

 

Radius Protocol

 Code: Access Accept (2)

 Packet identifier: 0x26 (38)

 Length: 72

 Authenticator: 0x9CAFB35071EA14E24A7CAF61539177

Attribute value pairs

 T:Vendor Specific(26) l:20, vendor:Cisco(9)

            T:Cisco Command Info(252) l:14, value:0C4F30303130305F4B425333

 T:Vendor Specific(26) l:26, vendor:Cisco(9)

            Cisco-Account-Info: s97.251.244.30:428

            T:Cisco Account Info(250) l:20, value:” s97.251.244.30:428”

 

In the above RADIUS packet, I want to decode the value of Cisco Command Info VSA (shown in bold).

Could anyone help me in decoding the value of this attribute?

 

Thanks,

Deepa

 

 

 

From: ethereal-users-bounces@xxxxxxxxxxxx [mailto:ethereal-users-bounces@xxxxxxxxxxxx] On Behalf Of Andreas Fink
Sent: Saturday, April 22, 2006 12:17 AM
To: Ethereal user support
Subject: Re: [Ethereal-users] Decoding Cisco VSA

 

Most cisco VSA these days are in cleartext in variable = value style so you should be simply able to read them.

Cisco only uses very few numeric VSA codes and packet all the other interesting radius attributes into a generic attribute for named variables.

 

On 21.04.2006, at 17:13, Deepa Gandhavalli Ramaniah -X (dgandhav - HCL at Cisco) wrote:

 

Hi Ethereal experts,

 

I use the Ethereal tool to analyze the snoop output captured in a Solaris machine. I would like to know how to decode a vendor (Cisco Systems, Inc.) specific RADIUS attribute – Cisco Command Code VSA.

Please share your views on this.

 

Thanks in advance,

Deepa

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Andreas Fink

Fink Consulting GmbH

 

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