s/#ifdef MIP6/#ifndef BBNHACK/, since BBN hack affects proxy NDP, not just MIP6.
s/#ifdef MIP6/#ifndef BBNHACK/, since BBN hack affects proxy NDP,
not just MIP6.

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