input: [0] key [2] (yes) [3] The link key. For security reasons, the key has to be set via an options file, subject to the restrictions described above. The key should be 128 bits in hexadecimal encoding. (To generate such a beast from random, try ps -auxw | md5sum.) [1] 
output: String
options: T y p e
options: S t r i n g
options: B o o l
options: I P
options: I n t
options: U D P
options: T C P