Hi,

since we are on the subject of source IP address. Would it make sense to
use X-Forwarded-For header instead of peer IP address? That could be
beneficial in case there is an HTTP cache involved, but it is easily faked.

Bye,
Robert

On 06/25/11 19:47, Reinaldo Penno wrote:
> Hi Ben,
>
> Endpoint cost service calculates the cost of the client sending the message
> to one or more clients. The client's IP address is used in order to generate
> the  appropriate answer.
>
> The endpoint property lookup service provides a way to find a list of
> properties about a endpoint. The IP address of the client sending the query
> has no bearing on the answer. Or does it?
>
> Or you are talking about a client finding properties for itself?
>
> Thanks,
>
> Reinaldo
>
>
> On 6/24/11 10:48 AM, "Ben Niven-Jenkins" <[email protected]> wrote:
>
>> Colleagues,
>>
>> Section 10.3 of draft-ietf-alto-protocol-08 states:
>>
>>    The protocol specified in this document provides a mode of operation
>>    where the source network location is computed by the ALTO Server (via
>>    the Endpoint Property Lookup interface) from the source IP address
>>    found in the ALTO Client query packets.  This is similar to how some
>>    P2P Trackers (e.g., BitTorrent Trackers - see "Tracker HTTP/HTTPS
>>    Protocol" in [BitTorrent]) operate.
>>
>> However, although section 7.7.5.1.3 (for the Endpoint Cost service) allows 
>> the
>> source address to be inferred from the client's IP address, section 7.7.4.1.3
>> (for the Endpoint Property Lookup service) doesn't allow the source address 
>> to
>> be optional or inferred from the client's IP address.
>>
>> Is this an oversight in the description of the Endpoint Property Lookup
>> service or should the example in section 10.3 point to the Endpoint Property
>> Cost service?
>>
>> Thanks
>> Ben
>>
>> _______________________________________________
>> alto mailing list
>> [email protected]
>> https://www.ietf.org/mailman/listinfo/alto
> _______________________________________________
> alto mailing list
> [email protected]
> https://www.ietf.org/mailman/listinfo/alto


-- 
Robert Varga
Pantheon Technologies, s.r.o.
Mlynske Nivy 56
831 05 Bratislava

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