Setting a secondary IP Address for a NIC in Solaris

bash-2.05b# ifconfig hme0:1 plumb
bash-2.05b# ifconfig hme0:1 9.27.55.30 netmask 255.255.255.0
bash-2.05b# ifconfig hme0:1 up
bash-2.05b# netstat -nr

Routing Table: IPv4
  Destination           Gateway           Flags  Ref   Use   Interface
-------------------- -------------------- ----- ----- ------ ---------
9.27.55.0            9.27.55.30            U        1      0  hme0:1
10.64.67.0           10.64.67.23           U        1     53  hme0
224.0.0.0            10.64.67.23           U        1      0  hme0
default              10.64.67.1            UG       1    217 
127.0.0.1            127.0.0.1             UH       1     13  lo0
bash-2.05b# ifconfig -a
lo0: flags=1000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4> mtu 8232 index 1
        inet 127.0.0.1 netmask ff000000
hme0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2
        inet 10.64.67.23 netmask ffffff00 broadcast 10.64.67.255
        ether 8:0:20:fd:bc:fa
hme0:1: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2
        inet 9.27.55.30 netmask ffffff00 broadcast 9.255.255.255
bash-2.05b#

=====================
bash-2.05b# ifconfig hme0:1 unplumb
bash-2.05b# ifconfig -a
lo0: flags=1000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4> mtu 8232 index 1
        inet 127.0.0.1 netmask ff000000
hme0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2
        inet 10.64.67.23 netmask ffffff00 broadcast 10.64.67.255
        ether 8:0:20:fd:bc:fa
bash-2.05b# netstat -nr

Routing Table: IPv4
  Destination           Gateway           Flags  Ref   Use   Interface
-------------------- -------------------- ----- ----- ------ ---------
10.64.67.0           10.64.67.23           U        1     53  hme0
224.0.0.0            10.64.67.23           U        1      0  hme0
default              10.64.67.1            UG       1    223 
127.0.0.1            127.0.0.1             UH       1     13  lo0
bash-2.05b#