On Tue, Dec 14, 2004 at 09:27:57AM -0600, Aleksandar Milivojevic wrote: > Alexander Volovics wrote: > >FC3 comes with ipv6 on by default, at least /sbin/lsmod shows > >ipv6 running. But how can you check if it actually works and > >is being used. > It doesn't work ;-) > You get link local addresses. Which are preatty much useless for most > of the things. The only theoretical use I could think of so far is > attacking Linux based firewalls from compromised DMZ hosts. And that's > about it. > > >Furthermore where can you 'stop' and 'start' it and how. > >(Not disable it, I know that you can do that via /etc/modprobe.conf). > > You can't stop and start it. Once the module is loaded, it is > (practically) impossible to unload it. Note that it isn't called from > anywhere explicitly. As soon as an application shows the interest in > IPv6, the ipv6 module gets automatically loaded, and then you are stuck > with it. This usually happens eraly during boot process, and that is > the reason you see ipv6 module always loaded. > > IMHO, it was bad idea to enable automatic loading of that module for > everybody. Vast majority of people have no use for IPv6, IPv6 on Linux > is still not mature, stable and fully working (just look at all the bug > reports, especially for 2.6.9 kernel that has really broken IPv6), and > those who really need it could easilly enable it in either modprobe.conf > or using config files in network-scripts directory. Thanks for the comprehensive reply. This ipv6 thingy had me really puzzled. I started thinking about it because I noticed that when I added an alias eth0:1 it had no inet6 adress (by the way can you also tell me how to add an inet6 address to an alias). I think I will just disable it for now. Alexander
