Marc SCHAEFER wrote:
> 
> On Wed, 9 May 2001, Gilbert ROBERT wrote:
> 
> > Est-ce que quelqu'un a d�j� rencontr� ce probl�me avec HotMail?
> non. Mes id�es:
>    - c'est pas ECN car 2.2.x ne supporte pas ECN � ma connaissance.

Je pense que le probl�me vient en effet du ECN. 
 
De ce que j'ai pu lire sur le rezo:

================================

> Just curious if others have noticed that hotmail is unable to deal with
> ECN and wondering if this is a standard that should be encouraged, as in
> should I tell hotmail that perhaps they should look into supporting it, or
> should I not waste my breath and echo 0 > /proc/sys/net/ipv4/tcp_ecn?
> 

They are.  I do think they have a point, though; ECN is listed as an
experimental standard at IETF, and I do think that it's not exactly
fair to *require* everyone to use it until it is standards-track.  It
would be another thing if Linux could turn it off on a per-connection
basis if these packets get dropped.
-----------------
Now recall that anything not known to be safe should
be denied (in a good firewall) -- see Cheswick and Bellovin for why.
When you take this point of view, it is completely understandable why
firewalls designed before ECN was introduced might block it.
========================

Donc je pense que c'est le firewall qui bloque les paquets avec ECN!

Probablement que le accept_source_route est disable.

# Disable Source Routed Packets
for f in /proc/sys/net/ipv4/conf/*/accept_source_route; do
    echo 0 > $f
done


>    - le mail n'indique pas si POP et WWW fonctionnent

je pense que oui puisque:

>> Again, my http and https ports are open and
>> everything works OK with other https sites,


Gilbert
--
http://www-internal.alphanet.ch/linux-leman/ avant de poser
une question. Ouais, pour se d�sabonner aussi.

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