Question re IPv6

[anonymous_cowar]

So, a week ago or so I learn IPv6 will no longer support fragmentation. Is it just me, or is that going to break basically most UDP programs, and make them a pain to fix? Am I missing something?

Comments

[sodabrew]

UDP doesn't fragment. You either get a complete packet or nothing.

[anonymous_cowar]

Yeah, UDP doesn't fragment, but that's because it relied on the ability for IP packets to fragment. Without IP fragmentation, the size of your UDP packets becomes severely limited, no?

[sodabrew]

Read the section titled "Path MTU Discovery and Fragmentation" --
http://www.cisco.com/web/about/ac123/ac147/archived_issues/ipj_9-3/ipv6_internals.html

Oh, and...
http://www.sixapart.com/about/jobs#open_platforms_software_engineer

Can interest you?

[anonymous_cowar]

Thanks for the info. Fragmenting "handled differently and in the next header part" is quite different than "not supported". I suppose I should just read the spec instead of these summary articles.

Job info convo goes non public.