Disabling IPv6 support in Red Hat Enterprise Linux 6
Create a file /etc/modprobe.d/ipv6.conf with the following contents:
options ipv6 disable=1
For completeness, it is a good idea to configure the ip6tables service not to start at boot by issuing the following command:
options ipv6 disable=1
For completeness, it is a good idea to configure the ip6tables service not to start at boot by issuing the following command: