Solaris 11 change primary ip and gateway

ipadm show-if
ipadm show-addr
ipadm delete-ip net0
ipadm show-addr
ipadm create-ip net0
ipadm create-addr -T static -a local=10.181.20.10/24 net0/v4
route -p show
netstat -rn
vi /etc/defaultrouter
route delete default 10.177.232.1
route add default 10.181.20.1