Disabling IPv6
Last time I did this, the procedure was something like:
# echo "alias net-pf-10 off" >> /etc/modprobe.conf
These days I think it is better to do it like this:
# echo "NETWORKING_IPV6=no" >> /etc/sysconfig/network
A good FC7 resource:
http://www.mjmwired.net/resources/mjm-fedora-fc7.html