Changing IP address in Solaris 10 different from Sol 9?

I recently needed to change the IP address of 2 new Solaris 10 Sparc boxes. I made the normal changes
/etc/hosts
/etc/hostname.bge0
/etc/resolv.conf
/etc/netmasks
/etc/nodename &
/etc/defaultrouter
(why can't we get these into one file?)
But when rebooted, the server still remembered its old IP address and settings even though I couldn't grep that IP anywhere. I eventually had to do a sys-unconfig which I was hoping to avoid. Is there some other way to change an IP in solaris 10?

Here's the step that I use whenever I'm stuck and it usually works. As I'm still learning now, these may be easy steps and you may have been already done these.
"Static to DHCP IP Address"
First unplumb
# ifconfig e1000g0 unplumb
Then Plumb (probably IP will become like 0.0.0.0)
# ifconfig e1000g0 plumb
Use dhcp
# ifconfig e1000g0 dhcp primary
Check on IP address
Should have an IP address from your dhcp server by now.
# ifconfig -a
and
# ifconfig e1000g0 dhcp status
"Configure DNS client"
Edit "nsswitch.conf" file
go to /etc
# more /etc/nsswitch.conf
# vi /etc/nsswitch.conf
and add "dns" on hosts
hosts: files dns
go to /etc and see if the file is already there or not
# more /etc/resolv.conf
If it's not created yet, then create one.
# vi /etc/resolv.conf
domain domain.com
nameserver 0.0.0.1
search domain.com
Then ping should work with both ip address and domain name.
For Manual IP
First unplumb
# ifconfig e1000g0 unplumb
Then assign an IP and make sure that you are using the right IP address if you are in the network.
#ifconfig e1000g0 plumb 192.168.100.10 netmask 255.255.255.0 up
Check if it's updated
#ifconfig -a
If you still can't get the right ip address, then something is up. Oh, make sure that your Ethernet cable is connected or not defective. It happened to me once.
Hope this would help someone.

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Changing IP address in Solaris 10 different from Sol 9?

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