AH or ESP

Jack Kohn kohn.jack at gmail.com
Mon May 25 08:24:13 CDT 2009


Glen,

IPSECME WG <http://www.ietf.org/html.charters/ipsecme-charter.html> at IETF
is actually working on the exact issue that you have described (unable to
deep inspect ESP-NULL packets).

You can look at
draft-ietf-ipsecme-traffic-visibility-02<http://tools.ietf.org/html/draft-ietf-ipsecme-traffic-visibility-02>for
more details.

Jack

On Sat, May 23, 2009 at 5:06 AM, Glen Kent <glen.kent at gmail.com> wrote:
> Yes, thats what i had meant !
>
> On Fri, May 22, 2009 at 10:46 PM, Christopher Morrow
> <morrowc.lists at gmail.com> wrote:
>>
>> On Fri, May 22, 2009 at 1:04 PM, Glen Kent <glen.kent at gmail.com> wrote:
>> > Hi,
>> >
>> > It is well known in the community that AH is NAT unfriendly while ESP
>> > cannot
>> > be filtered, and most firewalls would not let such packets pass. I am
>> > NOT
>>
>> 'the content of the esp packet can't be filtered in transit' I think
>> you mean... right?
>>
>> > interested in encrypting the data, but i do want origination
>> > authentication
>> > (Integrity Protection). Do folks in such cases use AH or ESP-NULL,
given
>> > that both have some issues?
>> >
>> > Thanks,
>> > Glen
>> >
>
>



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