1、查詢kernel是否有載入ipv6的模組
# modprobe -c |grep ipv6
如果有看到 alias net-pf-10 ipv6，就表示已經載入ipv6的模組
2、編輯/etc/sysconfig/network，加入 NETWORKING_IPV6=yes
NETWORKING_IPV6=yes|no - 啟用或不啟用global IPv6
3、編輯/etc/sysconfig/network-scripts/ifcfg-eth0，並加入下列各行：
IPV6INIT=yes
IPV6ADDR=
IPV6_DEFAULTGW=
我的ifcfg-eth0內容如下，同時支援IPv4與IPv6：
DEVICE=eth0
BOOTPROTO=static
ONBOOT=yes
HWADDR=08:00:27:95:f9:1c
IPADDR=192.168.56.201
GATEWAY=192.168.56.1
NETMASK=255.255.255.0
IPV6INIT=yes
IPV6ADDR=fec0::a00:27ff:fe95:f91c/64
IPV6_DEFAULTGW=fec0::a00:27ff:fe95:1
IPV6INIT=yes -啟用IPv6
IPV6ADDR=fec0::a00:27ff:fe95:f91c/64 -IPv6 address
IPV6_DEFAULTGW=fec0::a00:27ff:fe95:1 -default gateway
4、重新啟動網路
# service network restart
5、查詢eth0的狀態，應該就可以看見IPv6的IP
# ifconfig eth0
eth0 Link encap:Ethernet HWaddr 08:00:27:95:F9:1C
inet addr:192.168.56.201 Bcast:192.168.56.255 Mask:255.255.255.0
inet6 addr: fec0::a00:27ff:fe95:f91c/64 Scope:Site -->IPv6的Site-local IP
inet6 addr: fe80::a00:27ff:fe95:f91c/64 Scope:Link -->IPv6的Link-local IP
