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Re: some issues about IPSec





Scott G. Kelly wrote:

> One benefit is that it provides the end-user with the capability to
> negotiate security association attributes on its own behalf. Perhaps the
> end-user desires stronger security than the sgw configuration would
> permit. Perhaps the sgw services so many endusers that the granularity
> of its SPD is not sufficient to provide for the varied needs of its
> clients.

You can do end-user to end-usr in tunnel mode - therefore I don't buy this
argument.

>
>
> Perhaps a stronger argument exists in terms of overhead concerns. If the
> enduser provides its own security service, that's one less
> (encapsulating) ip header on the packet. Further, it relieves (in the
> short term) concerns of bottlenecks at sgw's which may not have the
> processing power and memory to provide the granularity necessary to
> provide for every client's needs at wireline speeds.

I don't buy this argument either - there is no need for double-encapsulation -
just establish end-to-end tunnel.

--
Bronislav Kavsan
IRE Secure Solutions, Inc.
100 Conifer Hill Drive  Suite 513
Danvers, MA  01923
voice: 978-739-2384
http://www.ire.com





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