This package adds an interactive function ietf-docs-open-at-point
which can be bound to a key. When the function is invoked it will look
at the text around the point and if it is an ietf document name (e.g.,
RFC-791, RFC 2992, draft-ietf-isis-ipv6, ...) it will then fetch the
file (if it has not done so already), and load it into a new buffer.
A useful binding might be C-c i o:
(global-set-key (kbd "C-c i o") 'ietf-docs-open-at-point)
There are a couple customizable variables, the most import of which is
ietf-docs-cache-directory. This is where the fetched documents will
be cached and loaded from. The default value is ~/ietf-docs-cache.