[pulseaudio-discuss] ticket #79 - disable IPv6 support

Jim Carter jimc at math.ucla.edu
Tue Feb 10 12:35:05 PST 2009

On Sat, 7 Feb 2009, Iain Hibbert wrote:

> I found a need to disable IPv6 support and found that this was discussed
> in ticket #79 but closed with "send a patch if you want it" comment but
> nobody seems to have done so.
> I have prepared a patch to allow this, see "pa.diff" attached. If INET6 is
> defined, IPv6 support is built, otherwise not. This can be controlled by
> "CPPFLAGS=-DINET6" in environment passed to configure script.
> It would likely be better to have the configure script to handle this with
> -disable-ipv6/-enable-ipv6....

My autoconf.fu is nonexistent so I can't help on this.  However, the IETF 
Mafia would prefer if all software supported IPv6 by default, suggesting 
that if possible the polarity should be SUPPRESS_IPv6 if you really, truly 
have to.  

I'm just getting started in this area, but as I understand it, getaddrinfo 
(3) silently bypasses IPv6 on a host with no IPv6 capability; or if the 
destination lacks an AAAA record it will provide either native IPv4 address
structures or IPv4-in-IPv6 mapped addresses depending on caller flags or on 
whether it looks like the packet will go out on an IPv6-only interface.

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James F. Carter          Voice 310 825 2897    FAX 310 206 6673
UCLA-Mathnet;  6115 MSA; 405 Hilgard Ave.; Los Angeles, CA, USA 90095-1555
Email: jimc at math.ucla.edu  http://www.math.ucla.edu/~jimc (q.v. for PGP key)

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