uri redirect

This should be fairly straght forward assuming you are terminating SSL on the BIG-IP. If you are not decrypting the SSL, there is no way for the iRules to look at the content.

Here's an iRule that should get you started.

when HTTP_REQUEST { 
   switch -glob [string tolower [HTTP::uri]] { 
     "/bla/bla/bla*" { 
       HTTP::redirect "https://anotherguysdomain.com[HTTP::uri]" 
     } 
   } 
 }

this will redirect all requests that start with /bla/bla/bla to the new domain and allow all others to the default pool. Just make sure this iRule isn't running on the "anotherbuysdomain.com" virtual or you will get yourself into a recursive loop. If that's a requirement, you can check the value of "[HTTP::host]" around the switch.

-Joe