I am working on some IPv4 & IPv6 Interoperability stuff, and I hit a brick wall trying to get an IPv6 UDP server to receive IPv4 packets. It looks like that piece was taken out per inet6(4):
"OpenBSD does not route IPv4 traffic to an AF_INET6 socket. The particu- lar behavior in RFC 2553 is intentionally omitted for security reasons presented above. If both IPv4 and IPv6 traffic need to be accepted, lis- ten to two sockets." So if I want to add IPv6 functionality to an existing app, I would convert the current IPv4 stuff to use getaddrinfo, and I would just open two sockets by walking the link list provided by getaddrinfo, right? I wouldn't try to receive IPv4 traffic on an IPv6 socket for openBSD. Now, I have done a cursory review of docs via google for converting IPv4 apps to IPv6, but I haven't looked at the security issues with coding for both. Besides searching securityfocus, is there another site I should be reading for IPv6? Is KAME still relevant to the openBSD implementation? Cheers, Brian Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
