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RE: the COMPRESSION discussion
--- On Thu, 20 Mar 1997 10:59:15 -0500 "Ferdinand N. Ahlberg" <ahlberg@ctron.com> wrote:
> So, use of compression deserves to be defined in IPSec, because, if you
> encrypt at the network layer, your PPP compression will not compress the
> packets.
Some have argued that it is better to define a separate per-packet
compression method that can be used by IPsec but is not tied directly
inside the ESP packet format. Others argue that compression should
be within ESP. Either approach eliminates the issue that link-layer
compression is ineffective on encrypted data.
> In order to harmonize the two technologies, you must compress before
> encrypting.
That is an argument for optional compression but it doesn't argue for
or against either of the approaches that have been proposed on this list.
Ran
rja@inet.org
References: