Url Mapping

'/' => 'user/signin',
'<controller:\w+>/<action:\w+>/<id:\d+>' => '<controller>/<action>',
'<controller:\w+>/<action:\w+>/<type:\d+>' => '<controller>/<action>',
'<controller:\w+>/<action:\w+>' => '<controller>/<action>',

I have this URL mapping code, how do I map this controller to this controller action as another rule.

'proposal/viewclientlink' to 'p/c'

I have tried this so far ...

'p/c' => 'proposal/viewclientlink'

As a rule however it is not working. The method does except a param called "keycode".