I swear I have no other devices on the vmnet 192.168.142.2, but after I configured one of the solaris x86 os, I kept getting warning ..node xx xxxxx have our ip addresss 192.168.142.2, and it scrolled thru it forever ..
I tried to boot it into single user mode , still having the same issue..
still no luck,
no sure how I could mount the cdrom/iso in this VMware and mount the zfs and manually edit the ip away, 
---------- Post updated at 09:24 PM ---------- Previous update was at 08:22 PM ----------
fixed now, after looking it, it turns out h1 was used as a hostname, which was an alias to my other Linux guest..
boot the thing into failed save in grub.conf, and mount the zfs rpool as r/w, and edit the files related to hostname..all done..