How many secondary IPv6 addresses are allowed on a VLAN subinterface in CentOS 7? With the config below I only get the former IPv6 address successfully assiged to ens224.2015 while the latter IPv6 address assignment fails with "network: ERROR : [/etc/sysconfig/network-scripts/ifup-aliases] error in ifcfg-ens224.2015:2: already seen ipaddr in ifcfg-ens224.2015:1". Is that because I'm trying to allocate them from the same /64 subnet?
Many thanks in advance!
[root@tools-centos7 network-scripts]# cat ifcfg-ens224.2015:1
DEVICE=ens224.2015:1
BOOTPROTO=none
ONBOOT=yes
IPV6INIT="yes"
IPV6_DEFROUTE="no"
IPV6ADDR=240b:c0d0:101:27df::1:229/64
PEERDNS=no
NM_CONTROLLED="no"
VLAN=yes
[root@tools-centos7 network-scripts]#
[root@tools-centos7 network-scripts]#
[root@tools-centos7 network-scripts]# cat ifcfg-ens224.2015:2
DEVICE=ens224.2015:2
BOOTPROTO=none
ONBOOT=yes
IPV6INIT="yes"
IPV6_DEFROUTE="no"
IPV6ADDR=240b:c0d0:101:27df::2:229/64
PEERDNS=no
NM_CONTROLLED="no"
VLAN=yes
[root@tools-centos7 network-scripts]#