[krbdev.mit.edu #8530] KDC/kadmind explicit wildcard listener addresses do not use pktinfo

[Greg Hudson via RT]

Our pktinfo support explicitly doesn't operate on non-wildcard sockets 
(see udppktinfo.c:is_bound_to_wildcard()), and now that I think about 
it, there may have been some issues trying to use pktinfo on non-
wildcard sockets on FreeBSD.  So I don't think that test was conclusive.

Also, do you know if the kernel on these machines was built without IPv6 
support?  I think an EAFNOSUPPORT error would actually come from 
socket(), not bind().