talk about diffs between draft-itojun-ipv6-tclass-api-03.txt and current code
talk about diffs between draft-itojun-ipv6-tclass-api-03.txt and current code

MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame