ifconfig -a on Solaris would give you the following type of info - to get the same on HP-UX you would have to do ifconfig lan1 (or specific interface - gather that info from lanscan)

$ ifconfig -a
hme0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 1
inet 10.14.6.6 netmask fffffc00 broadcast 10.14.6.255
lo0: flags=1000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4> mtu 8232 index 2
inet 127.0.0.1 netmask ff000000

On HP-UX:
$ lanscan
Hardware Station Crd Hdw Net-Interface NM MAC HP-DLPI DLPI
Path Address In# State NamePPA ID Type Support Mjr#
8/4/2/0 0x0060B0F93BA9 1 UP lan1 snap1 1 ETHER Yes 119

$ ifconfig lan1
lan1: flags=843<UP,BROADCAST,RUNNING,MULTICAST>
inet 10.14.8.2 netmask fffffc00 broadcast 10.14.8.255