implements MLDv1 Startup Query as in RFC2710 section 7.6-7.7.
implements MLDv1 Startup Query as in RFC2710 section 7.6-7.7.

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