Sep
29
2015
So … it seems that some router gives dhcp ipv6 prefixes for specific lans.
The default behaviour of CentOS is to autoconfigure the network interface with ifup script.
We havent finished our #ipv6 schema/deployment so we need to disable this ipv6 autoconfigure feature.
global
# vim /etc/sysconfig/network
NETWORKING_IPV6=no
IPV6FORWARDING=no
IPV6_AUTOCONF=no
interface
# vim /etc/sysconfig/network-scripts/ifcfg-eth0
IPV6INIT=no
Flushing
# ip -6 addr flush eth0
# ip -6 route flush scope global
and finally restart
# service restart network