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Old 11-19-2009, 08:07 AM
Klaus Ethgen
 
Default Bug#556967: closed by Ben Hutchings ( Bug#556967: IPv6 is not compiled as module)

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Am Mi den 18. Nov 2009 um 21:33 schrieb Debian Bug Tracking System:
> Date: Wed, 18 Nov 2009 20:26:34 +0000
> From: Ben Hutchings <ben@decadent.org.uk>
[...]
> > Maybe the Severity is to low rated as that is a security bug!
> >
> > The IPv6 support is not compiled as module than fix in the kernel. So
> > there is no way to switch IPv6 off.
> [...]
>
> This is not true. You can add ipv6.disable=1 to the command line.

Ok, then there is a workaround, thanks.

But the bug is not solved as there is no reason to compile ipv6
integrated in the kernel. More over the ipv6.disable is not documented.
"man bootparam" do not show it, "grep -ri ipv6
/usr/src/linux-*/Documentation" give no hint and I did not found it
anywhere. I also did try "grep -r module_param_named /usr/src/linux/net"
but it is not found that way too. On the other hand, if ipv6 is compiled
as module it is pretty easy to switch it off.

Regards
Klaus
- --
Klaus Ethgen http://www.ethgen.de/
pub 2048R/D1A4EDE5 2000-02-26 Klaus Ethgen <Klaus@Ethgen.de>
Fingerprint: D7 67 71 C4 99 A6 D4 FE EA 40 30 57 3C 88 26 2B
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Old 11-19-2009, 11:37 AM
Ben Hutchings
 
Default Bug#556967: closed by Ben Hutchings ( Bug#556967: IPv6 is not compiled as module)

On Thu, 2009-11-19 at 10:07 +0100, Klaus Ethgen wrote:
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> Hash: SHA512
>
> Am Mi den 18. Nov 2009 um 21:33 schrieb Debian Bug Tracking System:
> > Date: Wed, 18 Nov 2009 20:26:34 +0000
> > From: Ben Hutchings <ben@decadent.org.uk>
> [...]
> > > Maybe the Severity is to low rated as that is a security bug!
> > >
> > > The IPv6 support is not compiled as module than fix in the kernel. So
> > > there is no way to switch IPv6 off.
> > [...]
> >
> > This is not true. You can add ipv6.disable=1 to the command line.
>
> Ok, then there is a workaround, thanks.
>
> But the bug is not solved as there is no reason to compile ipv6
> integrated in the kernel. More over the ipv6.disable is not documented.
[...]

It's documented as a module parameter in
Documentation/networking/ipv6.txt. When modular code is built-in, its
module parameters become kernel command line parameters.

Ben.

--
Ben Hutchings
Beware of bugs in the above code;
I have only proved it correct, not tried it. - Donald Knuth
 
Old 11-19-2009, 12:14 PM
Klaus Ethgen
 
Default Bug#556967: closed by Ben Hutchings ( Bug#556967: IPv6 is not compiled as module)

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Am Do den 19. Nov 2009 um 13:37 schrieb Ben Hutchings:
> > integrated in the kernel. More over the ipv6.disable is not documented.
> [...]
>
> It's documented as a module parameter in
> Documentation/networking/ipv6.txt.

Hmmm... That file is not found. I searched up to version 2.6.28.10.

This file was first inserted to the kernel with version 2.6.29.

> When modular code is built-in, its module parameters become kernel
> command line parameters.

Thats clear.

Gruß
Klaus
- --
Klaus Ethgen http://www.ethgen.de/
pub 2048R/D1A4EDE5 2000-02-26 Klaus Ethgen <Klaus@Ethgen.de>
Fingerprint: D7 67 71 C4 99 A6 D4 FE EA 40 30 57 3C 88 26 2B
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