VM is not getting IPv6 subport IP with the following nic configuration,

ens5.1000 Link encap:Ethernet HWaddr fa:16:3e:5c:5b:52
inet addr:5.1.1.3 Bcast:5.1.1.255 Mask:255.255.255.0
inet6 addr: fe80::f816:3eff:fe5c:5b52/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:112 errors:0 dropped:0 overruns:0 frame:0
TX packets:15 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:10984 (10.9 KB) TX bytes:1818 (1.8 KB)

2. Configuration data
2.1. HW Configuration details
EBS, HP or DELL:
Number of subracks
Number of blades:
EMC (Yes or No):
Switches used (X670V, X770 or BD):
2.2. SW Configuration details
No of DPNs : 9 + 3
No of CICs : 3
No VMs : 144
No of Networks : 216
No of L3VPN : 72