Re: Enable tools for IPv6

[Michael Tremer <michael.tremer@ipfire.org>]

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On Wed, 2015-08-05 at 17:59 +0200, Larsen wrote:
> On Wed, 05 Aug 2015 17:31:36 +0200, Michael Tremer  
> <michael.tremer(a)ipfire.org> wrote:
> 
> > On Wed, 2015-08-05 at 17:27 +0200, Larsen wrote:
> > > On Wed, 05 Aug 2015 12:28:01 +0200, Michael Tremer
> > > <michael.tremer(a)ipfire.org> wrote:
> > > 
> > > > IPFire 3 is ready for IPv6. I would appreciate much more to 
> > > > focus
> > > > on
> > > > that then and then finally get rid of IPFire 2.
> > > 
> > > Ok, fair enough.
> > > There are precompiled binaries for the needed tools, so this
> > > shouldn´t
> > > pose a problem.
> > 
> > I think that is even worse. When ever we patch those binaries they 
> > will
> > be overwritten on these systems.
> 
> 
> I guess this problem exists for different aspects of manually getting 
> IPv6  
> to work on IPFire 2.x. For example, have a look at the following 
> files  
> that will be edited and might possibly be overwritten.

Yes, these are all system files and they *will* be overwritten at some
time.

> /etc/sysconfig/modules

I have no idea why all these modules need to be loaded manually. The
respective tools like ip6tables, strongswan and so on will do that when
needed.

> /etc/sysctl.conf

It is probably better to create /etc/sysctl.d and then have a file in
that directory that overwrites the default settings in /etc/sysctl.conf

> /etc/resolv.conf

There is no need to resolve names over IPv6 and circumvent dnsmasq.
This will disable DNSSEC. Add the name server to the dnsmasq
configuration and you will be fine.

> /etc/modprobe.d/ipv6.conf (deleted)

This can be moved to a sysctl setting and then solved as described
above.

> > http://wiki.ipfire.org/en/add-ipv6/extend/nativ
> /etc/init.d/network
> 
> Therefore, we don't really need the tools to be IPv6-enabled. It 
> would  
> just have made things one step easier.

You will need this in dnsmasq if you want to keep DNSSEC.

> 
> 
> So, I have added a warning here:
> http://wiki.ipfire.org/en/add-ipv6/ipv6/extended

I changed that. IPv6 support is finished in IPFire 3. Some smaller
things like prefix delegation for PPP is not entirely tested and
robust, but it should work well enough.

> 
> Lars

-Michael

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