How to encrypt the cookies generated by LTM?

A couple of other points I forgot:

 

 

If you use HTTP::collect you should limit the collection to the first 1Mb of payload, else you risk triggering a TMM core. See SOL6578 for details:

 

 

SOL6578: TMM will crash if an iRule collects more than 4MB of data

 

http://support.f5.com/kb/en-us/solutions/public/6000/500/sol6578.html

 

 

And you could probably break out the payload rewriting functionality to a separate iRule as it wouldn't conflict with the cookie encryption.

 

 

Lastly, you could replace the payload collection with a stream profile and STREAM::expression iRule. The stream option should be more efficient than the payload collection. For examples of the stream option, you can check the STREAM::expression wiki page:

 

 

http://devcentral.f5.com/wiki/default.aspx/iRules/stream__expression

 

 

Aaron