Issue 6674 - OpenOffice.org Unreachable if ECN is enabled.
Summary: OpenOffice.org Unreachable if ECN is enabled.
Status: CLOSED FIXED
Alias: None
Product: Infrastructure
Classification: Infrastructure
Component: Website general issues (show other issues)
Version: current
Hardware: PC Other OS
: P2 Trivial (vote)
Target Milestone: ---
Assignee: Unknown
QA Contact: issues@www
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2002-07-31 16:29 UTC by nedrichards
Modified: 2003-12-06 14:52 UTC (History)
1 user (show)

See Also:
Issue Type: DEFECT
Latest Confirmation in: ---
Developer Difficulty: ---

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Description nedrichards 2002-07-31 16:29:30 UTC 
Just passing some some reports to the webmasters email address:

"Hello,

You have a problem with an old router/firewall, which is not updated to
a sufficient current state to cope with ECN enabled packages. Please
update the responsible software, because otherwise people behind a
recent Linux iptables firewall may encounter this problem, not knowing
why they can't access your site.

When I toggle it at home to off, it works, switching ECN back to on
denies the access...

With best regards, Stefan Urbat"

Feedback, Louis?
Comment 1 lsuarezpotts 2002-07-31 21:14:23 UTC 
Hi
I raised this issue with our engineers at CN and they informed me that
the ECN "issue" is in fact a normal state: that it the default is "off."
We can tell people who are having difficulties to switch to "off"--and
that's about it. There is no indication that it will be switched by CN
engineers to "on."
Sorry for the hassle.
Let's close this issue but use it for reference.
louis
Comment 2 lsuarezpotts 2002-08-12 09:08:12 UTC 
From the Webmasters:
Dear Sir,
As you are avare (Issue #6674) the openoffice.org site is unreachable when
hosts using ECN (Explicit Congestion Notification (IP RFC 791, ECN RFC
2481) try to connect. I also read the IssueZilla note about how your
engineers apparently didn't understand the issue. I'm sending this mail to
you because I'm lazy and don't want to register to IssueZilla.
Now to the ECN issue;
  It's not the issue that ECN should be enabled on your servers, it's the
issue that your servers/firewalls don't follow the (Internet Protocol,
IP) RFC's and don't accept connections from computers with the ENC enabled
bit set. If the server does not support ECN, it should still accept the
connection - it should simply not put the ECN bit on (located in the high
TOS (Type of service) bits in IP-header originaly marked as set to zero in
RFC). 
  The solution is quite simple, you have *broken servers/firewalls* and
you should *fix* them. There is a quite good ECN page at 
http://gtf.org/garzik/ecn/, your engineers should probably take a look at
it..
  And to repeat myself; You don't need to enable ECN on your site, you
just need to fix the broken servers/firewalls that refuse IP packets with
the ECN TOS bit set.

Best regards,
- --
Roger Oksanen <roger@lifix.fi>                         +358 50 355 1990
Software Developer                                      PGP id 1B125A3E
Lifix Systems Oy <http://www.lifix.fi/>
Innopoli 2, Tekniikantie 14, FIN-02150 Espoo
Comment 3 lsuarezpotts 2002-08-12 09:08:35 UTC 
From the Webmasters:
Dear Sir,
As you are avare (Issue #6674) the openoffice.org site is unreachable when
hosts using ECN (Explicit Congestion Notification (IP RFC 791, ECN RFC
2481) try to connect. I also read the IssueZilla note about how your
engineers apparently didn't understand the issue. I'm sending this mail to
you because I'm lazy and don't want to register to IssueZilla.
Now to the ECN issue;
  It's not the issue that ECN should be enabled on your servers, it's the
issue that your servers/firewalls don't follow the (Internet Protocol,
IP) RFC's and don't accept connections from computers with the ENC enabled
bit set. If the server does not support ECN, it should still accept the
connection - it should simply not put the ECN bit on (located in the high
TOS (Type of service) bits in IP-header originaly marked as set to zero in
RFC). 
  The solution is quite simple, you have *broken servers/firewalls* and
you should *fix* them. There is a quite good ECN page at 
http://gtf.org/garzik/ecn/, your engineers should probably take a look at
it..
  And to repeat myself; You don't need to enable ECN on your site, you
just need to fix the broken servers/firewalls that refuse IP packets with
the ECN TOS bit set.

Best regards,
- --
Roger Oksanen <roger@lifix.fi>                         +358 50 355 1990
Software Developer                                      PGP id 1B125A3E
Lifix Systems Oy <http://www.lifix.fi/>
Innopoli 2, Tekniikantie 14, FIN-02150 Espoo
Comment 4 stx123 2002-08-15 17:31:02 UTC 
reassigning to support for a final statement.
Comment 5 lsuarezpotts 2002-08-17 08:09:40 UTC 
I refiled the pcn issue and it was labeled "resolved/fixed."  (9588).
It is neither.
It is a wontfix.
closing this the same b/c I can't do anything else.
louis
Comment 6 lsuarezpotts 2002-08-17 08:09:59 UTC 
I refiled the pcn issue and it was labeled "resolved/fixed."  (9588).
It is neither.
It is a wontfix.
closing this the same for the same reasons.
louis
Comment 7 stx123 2003-07-15 10:26:28 UTC 
ECN works now; see issue 14849