Also define INET6. Part of IPv6 support obtained frm Irene Ruengeler.
Also define INET6.
Part of IPv6 support obtained frm Irene Ruengeler.

tosakanth/sctp-refimpl,xwhuang/sctp-refimpl,xwhuang/sctp-refimpl,xwhuang/sctp-refimpl,TopPano/sctp-refimpl,gale320/sctp-refimpl,xwhuang/sctp-refimpl,TopPano/sctp-refimpl,TopPano/sctp-refimpl,xwhuang/sctp-refimpl,TopPano/sctp-refimpl,timsuchanek/sctp-refimpl,TopPano/sctp-refimpl,sctplab/sctp-refimpl,deepak899/sctp-refimpl,gale320/sctp-refimpl,TopPano/sctp-refimpl,gale320/sctp-refimpl,sctplab/sctp-refimpl,sctplab/sctp-refimpl,sdd330/sctp-refimpl,tosakanth/sctp-refimpl,tosakanth/sctp-refimpl,sdd330/sctp-refimpl,sdd330/sctp-refimpl,TopPano/sctp-refimpl,xwhuang/sctp-refimpl,sdd330/sctp-refimpl,deepak899/sctp-refimpl,sctplab/sctp-refimpl,sdd330/sctp-refimpl,timsuchanek/sctp-refimpl,timsuchanek/sctp-refimpl,gale320/sctp-refimpl,sdd330/sctp-refimpl,tosakanth/sctp-refimpl,timsuchanek/sctp-refimpl,deepak899/sctp-refimpl,sdd330/sctp-refimpl,gale320/sctp-refimpl,timsuchanek/sctp-refimpl,sdd330/sctp-refimpl,timsuchanek/sctp-refimpl,tosakanth/sctp-refimpl,timsuchanek/sctp-refimpl,TopPano/sctp-refimpl,tosakanth/sctp-refimpl,sctplab/sctp-refimpl,gale320/sctp-refimpl,gale320/sctp-refimpl,tosakanth/sctp-refimpl,sctplab/sctp-refimpl,deepak899/sctp-refimpl,tosakanth/sctp-refimpl,gale320/sctp-refimpl,gale320/sctp-refimpl,deepak899/sctp-refimpl,timsuchanek/sctp-refimpl,sdd330/sctp-refimpl,TopPano/sctp-refimpl,deepak899/sctp-refimpl,tosakanth/sctp-refimpl,timsuchanek/sctp-refimpl