I am using Fedora linux kernel 2.6.18.2. When I list kernel modules using lsmod command, I did not find any IPv6 module.

Then I have used the following document to load the module
http://tldp.org/HOWTO/Linux+IPv6-HOW...ck-kernel.html

[root@localhost ~]# test -f /proc/net/if_inet6 && echo "Running kernel is IPv6 ready"
Running kernel is IPv6 ready

[root@localhost ~]# modprobe ipv6
FATAL: Module ipv6 not found.

Any suggestion why I am getting this FATAL error