>>>>> "edrt" == edrt <edrt@citiz.net> writes: edrt> Would it be better to have all the ipv6 stuff in edrt> ipvx.hh/ipvx.cc/test_ipvx.cc all under HAVE_IPV6 shield just edrt> like what done in libcomm. No - most of our routing protocols unconditionally support IPv6 independent of whether or not the host on which the code is built supports IPv6. Atanu.