Comment 10 for bug 196675

oh, somewhat newer than the original post.

petter@nattbrygga:~$ apt-cache policy vino
vino:
  Installed: 2.24.1-0ubuntu1
  Candidate: 2.24.1-0ubuntu1
  Version table:
 *** 2.24.1-0ubuntu1 0
        500 http://se.archive.ubuntu.com intrepid/main Packages
        100 /var/lib/dpkg/status

It could depend on sysctl settings, if ipv6 binds ipv4 too
net.ipv6.bindv6only = 0