you should have a look at
man ifconfig
...
if you type "ifconfig -a" you will see every ethernet interface currently used by solaris, also the "virtual"
like:
root@pressy.unix.com # ifconfig -a
lo0: flags=1000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4> mtu 8232 index 1
inet 127.0.0.1 netmask ff000000
hme1: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2
inet 192.168.133.148 netmask ffffff00 broadcast 192.168.133.255
ether 8:0:20:aa:a7:d2
hme1:1: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2
inet 10.10.10.1 netmask ffffff00 broadcast 10.255.255.255
you see, hme1 is my normal device and hme1:1 is my first logical interface on hme1
greetings pressy