ten years of API evolution :-)

but the core routines are there and seem to be working.

   o  lib/ipv6.[ch] written
   o  Lexical analyser recognizes IPv6 addresses and when in IPv6
      mode, treats pure IPv4 addresses as router IDs.
   o  Router ID must be configured manually on IPv6 systems.
   o  Added SCOPE_ORGANIZATION for org-scoped IPv6 multicasts.
   o  Fixed few places where ipa_(hton|ntoh) was called as a function
      returning converted address.

Else, we would get chicken-egg problems in the table-to-table protocol.

The changes are just too extensive for lazy me to list them
there, but see the comment at the top of sysdep/unix/krt.c.
The code got a bit more ifdeffy than I'd like, though.

Also fixed a bunch of FIXME's and added a couple of others. :)

   o  Make proto_config->table always point to the right
      table even if it should be the default one.
   o  When shutting down, kill protocol in reverse order
      of their priority.
   o  When stopping a protocol down, disconnect it from
      routing tables immediately instead of waiting
      for the delayed protocol flush event.

Also added a protocol instance counter (used by KRT code
in very magic ways).

   o  Parsing of interface patterns moved to generic code,
      introduced this_ipatt which works similarly to this_iface.
   o  Interface patterns now support selection by both interface
      names and primary IP addresses.
   o  Proto `direct' updated.
   o  RIP updated as well, it also seems the memory corruption
      bug there is gone.

  o  Aliases are interpreted as secondary addresses.
  o  When the system doesn't supply interface indices, generate
     our ones.

currently very ugly, beware. Variables are not really local - that
needs to be fixed.

Fixed stupid bug with hello vs inactim timers.

Neigbor deleting done. (I have some problems with timers, so it does not
send hello.)

Detecting of new neighbor added. It starts inactivity timer.

fundamentally wrong. Reversed.

use it when creating sockets.

multicasting rip actually works [broadcasting is kind of hard to turn
it on, through].

Small cleaning and bugfixes.

filters in rip.

IP socket priority (sock->tos) added. Constant taken from tcpdump of CISCO
and gated.

Some RX_Hello checks added.

temporary attribute list.

Sending and receving of hello pkts works. No I will start building neighbor
database.

multiple inclusions.

do nothing more advanced for them