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soc:2011:pcmattman:journal:week8 [2011/07/15 07:02]
pcmattman day 5 log
soc:2011:pcmattman:journal:week8 [2011/07/16 05:44]
pcmattman update for day 6
Line 42: Line 42:
  
 One important note about completing this basic DHCPv6 support - aside from IPv6 fragmentation and proper handling of IPv6 extension headers, IPv6 support is now "​functionally complete"​ in gPXE. Hurrah! :) One important note about completing this basic DHCPv6 support - aside from IPv6 fragmentation and proper handling of IPv6 extension headers, IPv6 support is now "​functionally complete"​ in gPXE. Hurrah! :)
 +
 +==== Day 6 (July 16) ====
 +
 +I implemented the changes to settings.h today. This has gone very well so far:
 +<​code>​26711 2957.453307 2001:​44b8:​1::​6 2001:​44b8:​7222:​a50:​20c:​29ff:​fe54:​c23d DNS Standard query response AAAA 2001:​470:​1f07:​121b::​1</​code>​
 +
 +That's an AAAA response to gPXE querying "AAAA flash6.etherboot.org"​ - all over IPv6! The nameserver was obtained via DHCPv6.
 +
 +I still need to implement some way for DHCPv6 to get enough information out of a router solicitation to make an address assignment globally routable, but that won't take too long at all. I think I can even do it without having to change too much of the existing router solicit code.
 +
 +**Update (0039 UTC):**
 +
 +I've managed to fix some routing issues in IPv6 and rework router solicitations as needed to allow DHCPv6 to get information about the routers and prefixes available. This means DHCPv6 can now assign a fully routable address, rather than having to assume the address is a /128 or something.
 +
 +This means DHCPv6 is essentially "​complete"​ in the sense that it can be used as a complete alternative to SLAAC. It does not yet have any features related to network booting, nor does it have features that gPXE's DHCPv4 implementation has such as caching.
 +
 +I just need to merge and rebase the commits related to DHCPv6 and rename and reimplement the "​ipv6"​ command now that this is complete. The complete user-visible IPv6 interface is now essentially complete; the remainder of my project is backend work.

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