== IPv6 in Debian — Let's see where we are… ==

Please take notes here.

* ifupdown support (~ servers)
  - much better in 0.7, at least according to the manpage
  - DNS: rdnssd or "auto" in network/interfaces for stateless DHCP
  - support for enabling/disabling privacy extensions in interfaces
* network-manager support (~ clients)
  - now knows DHCPv6
  - can require IPv6 routing to be present
  - no GUI for privacy extension setting:
    + uses «2» for new connections
    + uses «0» (and overrides) for old imported connections
* possibly other clients like wicd
  - no special IPv6 support at all? some patches exist ...
* tools (debugging, configuration, probing, etc.); gems that people do not
  know about…
  - ndisc6 (neighbor/router discovery from userspace) -- includes rdisc6
  - iputils-tracepath (PMTU issues)
  - rdnssd
  - traceroute6, ping6, mtr
  - /bin/ip -6
  - w3m -- restrictable to either v4 or v6
* IPv6-only support
  - not getting DNS recursor from DHCPv4 but from IPv6 information instead
  - DNS64/NAT64
* installation (debian-installer / live-installer)
  - Ubuntu carries an IPv6 patchset to d-i: autoconf, DHCPv6
* privacy extension
  - Should we ship with it enabled everywhere by default?

=== Problems ===

* network-manager currently adds a static route for every kernel cache entry
* perl has had several problems:
 - munin remote host checking fails if first allow is wrong protocol version
 - Socket and Net::Server binding confusion when both A and AAAA records are present for a given name
* deactivating autoconf can be hard (sysctl in all does not work reliably?)
* UI problems: communicating to user when one stack is fully-configured and the other is not yet
* many user-space applicatons fail in the presence of multiple DNS records -- dual-stacked hosts make this more likely.
* long delay for IPv6 connections (with a broken IPv6 setup), the then subsequently work fine on IPv4
* dbndns does full IPv6 resolution except that it doesn't look up AAAA records for authoritative nameservers, so if the authoritative nameservers are v6-only the lookup fails.