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Re: IPv6-capable pfinet

From: Stefan Siegl
Subject: Re: IPv6-capable pfinet
Date: Mon, 8 Oct 2007 22:38:17 +0200
User-agent: Mutt/1.5.13 (2006-08-11)

Hi Thomas!

On Mon, Oct 08, 2007 at 08:31:15PM +0200, Thomas Schwinge wrote:
> [...] Have pfinet include the IPv6 code by default, but
> only activate the IPv6 engine if IPv6 services are actually needed, i.e.,
> if they are requested by the pfinet translator setting.  The increase in
> the pfinet translator's executable size does not matter in my opinion.

You're right that it doesn't make much sense to enable the IPv6 protocol
bits, if /servers/socket/26 is not bound.  I've now patched pfinet to
to do late (on demand) initialization of the engine, however we now need
to manually care for the protocol <-> device link (see new
pfinet_activate_ipv6 function).

Now you can even first start pfinet (passivly), bound to
/servers/socket/2 only, and then activate the IPv6 engine using:

    fsysopts /servers/socket/2 -6 /servers/socket/26 -a ...

It even works the other way round, but IPv6-only (currently) doesn't
make much sense, since DNS is usually configured to happen over IPv4.


Attachment: ipv6-late-activation.diff
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