====== How to remove ipv6 in AIX =====

1.  Remove from device. 
  lsattr -El lo0
  chdev -l lo0 -a netaddr6=''"
  ifconfig -a
  ifconfig lo0 inet6 ::1/0 delete
  ifconfig –a

2.     Remove IPv6 from net services file /etc/netsvc.conf.
  Edit /etc/netsvc.conf
  The default, on AIX, is thus:hosts=local,bindReplace this with:
  hosts = local4,bind4