[pulseaudio-tickets] [Bug 40785] Error connecting to PulseAudio server via IPv6

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=40785

--- Comment #1 from Tanu Kaskinen <tanuk at iki.fi> 2011-09-12 07:22:54 PDT ---
I'm not an expert either, but when I was experimenting with IPv6, I ran to
similar problems. I wrote some notes for myself, pasted below:


Link-local addresses (fe80::/16) are not very useful
====================================================

bind() can have difficulties with link-local addresses, and therefore it's
common that server programs can't listen on link-local addresses. So, don't use
link-local addresses. Instead, set up unique local addresses
(http://en.wikipedia.org/wiki/Unique_local_address) on all machines if you for
some reason can't or don't want to use public IP addresses.


Setting up unique local addresses
=================================

A unique local address (ULA) is an address that is very likely globally unique,
but not routed in the public internet. See
http://en.wikipedia.org/wiki/Unique_local_address. Randomness of the subnet
part is important when using ULAs. A new subnet address can be easily generated
at http://www.sixxs.net/tools/grh/ula/. The subnet for my home network is
fdc5:4fe5:888d::/64.



So I think your suggestion that Pulseaudio or Avahi should refuse to publish
link-local addresses is a good one.

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