Thanks, Kings.

 

From: Kingsley Charles [mailto:[email protected]] 
Sent: 19 June 2012 08:41 AM
To: Johan Bornman
Cc: Anthony Sequeira; [email protected]; CCIE Security
Subject: Re: [OSL | CCIE_Security] Protecting Against Fragmentation Attacks

 

Use the following logic with CBAC

ip inspect name fw fragment maximum - for outbound

ip virtual-reassembly - for inbound

With regards
Kings

On Tue, Jun 19, 2012 at 9:10 AM, Johan Bornman <[email protected]> wrote:

Anthony,

 

Thanks for your daily bit on the challenge. I am following it as I will also
do my lab around the same time.

 

I am under the impression that virtual-reassembly always has to be applied
to the "outside" int when CBAC and ZBF is used. Is this correct?

 

I am busy with a VII IPEXPERT lab where this was not done. 

 

Thanks

 

Johan

 

From: [email protected]
[mailto:[email protected]] On Behalf Of Anthony
Sequeira
Sent: 18 June 2012 03:33 PM
To: [email protected]


Cc: CCIE Security
Subject: Re: [OSL | CCIE_Security] Protecting Against Fragmentation Attacks

 

I did not test standalone and saw no documentation that led me to believe it
would work standalone. 

 

From: Alexei Monastyrnyi [mailto:[email protected]] 
Sent: Monday, June 18, 2012 7:55 AM
To: Anthony Sequeira
Cc: CCIE Security
Subject: Re: [OSL | CCIE_Security] Protecting Against Fragmentation Attacks

 

Hi Anthony.

Mentioning ip virtual-reassembly as a part of CBAC/ZBF, did you actually
test this as a standalone feature or did you always use it as a part of your
CBAC/ZBF configuration?

Cheers
A.
 

On 6/18/2012 12:22 PM, Anthony Sequeira wrote:

Here is a post I did today on this topic. 
 
http://blog.ipexpert.com/2012/06/17/ccie-security-challenge-
<http://blog.ipexpert.com/2012/06/17/ccie-security-challenge-%E2%80%93-day-2
2-of-120-%E2%80%93-fragment-attacks/> --day-22-of-120---fragment-attacks/
 
See anything I am missing? Thanks in advance! 
 
_______________________________________________
For more information regarding industry leading CCIE Lab training, please
visit www.ipexpert.com
 
Are you a CCNP or CCIE and looking for a job? Check out
www.PlatinumPlacement.com

 


_______________________________________________
For more information regarding industry leading CCIE Lab training, please
visit www.ipexpert.com

Are you a CCNP or CCIE and looking for a job? Check out
www.PlatinumPlacement.com

 

_______________________________________________
For more information regarding industry leading CCIE Lab training, please visit 
www.ipexpert.com

Are you a CCNP or CCIE and looking for a job? Check out 
www.PlatinumPlacement.com

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