you need to open a ticket w/ support and ask for a 'bllic' tool.
you'll need to provide some information about the appserver(s) on that network, but that's it.
Will it matter at all that the servers that need to be licensed are app servers?
Actually - you may not need the bllic - if you are only licensing a couple boxes, you can just do a 'getlic ' and sneakernet the licese.raw file over to a box connected to the internet, upload that to our licensing site, then download the license.dat, copy it back to where you ran the getlic from and run 'putlic'
if you have alot of boxes that are not connected to the internet, then i'd get the bllic.