558531 – Remote login via XDMCP does not work if ipv6 is enabled

Bug 558531 - Remote login via XDMCP does not work if ipv6 is enabled

Summary: Remote login via XDMCP does not work if ipv6 is enabled

Status:	RESOLVED DUPLICATE of bug 546632

Alias:	None

Product:	openSUSE 11.2
Classification:	openSUSE
Component:	X11 Applications (show other bugs)
Version:	Final
Hardware:	x86-64 openSUSE 11.2

Priority:	P5 - None Severity: Major (vote)
Target Milestone:	---
Assignee:	Reinhard Max
QA Contact:	E-mail List

URL:
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Keywords:

Depends on:
Blocks:

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Reported:	2009-11-25 21:06 UTC by Christoph Bartoschek
Modified:	2009-11-27 10:00 UTC (History)
CC List:	1 user (show)

See Also:
Found By:	---
Services Priority:
Business Priority:
Blocker:	---
Marketing QA Status:	---
IT Deployment:	---

Attachments
Tcpdump log during the login attempt (1.26 KB, application/octet-stream) 2009-11-25 21:06 UTC, Christoph Bartoschek	Details
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Description Christoph Bartoschek 2009-11-25 21:06:26 UTC

Created attachment 329541 [details]
Tcpdump log during the login attempt

User-Agent:       Mozilla/5.0 (compatible; Konqueror/4.3; Linux) KHTML/4.3.3 (like Gecko) SUSE

I have a x86_64 openSUSE machine that has remote login via XDMCP enabled. A remote thin client sees the machine in its chooser. I select the machine. The window becomes black and a X-server starts but no login from the openSUSE machine.

I attach the network communication during the login period. The dump shows that the openSUSE machine does not respond to a XDMCP Forward query.

If I on the other hand boot the openSUSE machine with disabled ipv6 by adding the boot parameter ipv6.disable=1 then I get a login window from the openSUSE machine. 

This means that only with disabled ipv6 the remote login works. However we would like to keep ipv6 enabled.

Reproducible: Always

Steps to Reproduce:
1. connect to the openSUSE machine from a remote x-server
2.
3.
Actual Results:  
I get no login window from the openSUSE machine.

Expected Results:  
A kdm login window.

Comment 1 Stefan Dirsch 2009-11-25 21:23:05 UTC

Likely a duplicate.

Comment 2 Stefan Dirsch 2009-11-26 10:52:55 UTC

Either duplicate of Bug #546632 or Bug #462283.

Comment 3 Stefan Dirsch 2009-11-27 03:57:07 UTC

Please try

  https://bugzilla.novell.com/show_bug.cgi?id=546632#c5

and 

  https://bugzilla.novell.com/show_bug.cgi?id=462283#c28 
  (server_args line in /etc/xinetd.d/vnc)

Comment 4 Christoph Bartoschek 2009-11-27 09:49:29 UTC

The workaround in https://bugzilla.novell.com/show_bug.cgi?id=546632#c5 works.
I get access denied for https://bugzilla.novell.com/show_bug.cgi?id=462283#c28.

Apparently the destop manager has problems with ipv6 and should be fixed. As soon as ipv4 is disabled or not available for the client-server-connection the problem will reappear.

Comment 5 Reinhard Max 2009-11-27 10:00:48 UTC

(In reply to comment #4)
> The workaround in https://bugzilla.novell.com/show_bug.cgi?id=546632#c5 works.

Cool, so I'll close this as a duplicate.

> Apparently the destop manager has problems with ipv6 and should be fixed.

Yes, we are working on that. Patches are of course welcome. ;)

*** This bug has been marked as a duplicate of bug 546632 ***