Tom Hendrikx: > I can see the use of the setsockopt call, since leaving it out has the > side effect that smtp-sink is also reachable on 127.1.2.3 (ipv4). On the > other hand, that behaviour is sort of what I requested when I explicitly > specified an IPv4-mapped IPv6 address.
If you want to talk IPv4, you must specify IPv4. Having two ways
to specify the same IP address is a security hole.
Wietse
