pssing parameters to website base url

[eluser]n1c0[/eluser]
Hello everybody, I cannot figure out a clean solution to achieve this result: when somebody enters a url like

Code:

www.example.com/this-controller-does-not-exist

the website treats it like the parameter of a certain controller

Code:

www.example.com/specified-controller/this-controller-does-not-exist

without visually changing the url

I tried some _remapping and things like that, but without any success.
What's the best way to achieve this result?

Thanks a lot!
Nico

[eluser]Mr. Pickle[/eluser]
Set the 404-route in the /config/routes.php file.
Let's say the specified controller is somecontroller you can do.

Code:

$route['404_override'] = 'somecontroller';

From there on you should be able to pick it up further within the somecontroller controller.

[eluser]n1c0[/eluser]
I tried that before. Don't know what it went wrong about it.
Now I tried again and it worked like a charm: thanks for the help!