I have a fairly simple problem
an old 802.11b router i havent used in a long time has wep encryption on it an i just decided to start using it for another site. Now the problem is i remember the first part of the key but not the second part. it is only 4 or five characters i am not sure on and so was wondering if i could use a brute force that would just work through all possibilities for those characters.

example
password is some thing like

bravo*****
where the stars are the unknown characters

on a related note is it possible to do it for the middle of a password such as

brav****o1

thanks

ps. yes i can reset the router but you know when your stuck on a puzzle and you just want to know if there is a soloution or not.