title: ipv6 loopback interface ( ::1/128 )
body: <p>What could be the reason for loopback interface ( ::1/128 ) not getting added on the routing table?
  I am using command to check : "route -n inet6 -A"</p>
  
  <p>Sometimes, there is no entry for the loopback interface. 
  Please note : ipv6 is enabled.</p>