How to install english.pickle for nltk on an off line Linux machine

I am trying to run nltk on a SUSE Linux box which cannot be connected to the internet.

I have successfully installed nltk and it runs but when I submit

>>> tagged = nltk.pos_tag(tokens)

I get this error:

LookupError:
**********************************************************************
Resource 'tokenizers/punkt/english.pickle' not found. Please use the NLTK Downloader to obtain the resource:

I cannot use the downloader since I can't connect the box to the internet.

Does anyone how I can install the necessary packages?