Infrastructure Software

Hi Solaris Experts,

I would like to update an IP address permanently but believes ifconfig
only does it on the fly and will revert back once the Solaris 10 Sun Fire server
is rebooted:

( i ) # uname -a
SunOS angel 5.10 Generic_139556-08 i86pc i386 i86pc

( ii ) # ifconfig -a
bge0: flags=201000803<UP,BROADCAST,MULTICAST,IPv4,CoS> mtu 1500 index 2
inet 10.56.120.37 netmask fffffc00 broadcast 10.56.123.255
ether 0:1e:68:9b:30:33
nge0: flags=201000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4,CoS> mtu 1500 index 4
inet 203.20.160.62 netmask ffffff00 broadcast 203.20.160.255
ether 0:1e:68:9b:30:35
nge0:1: flags=201000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4,CoS> mtu 1500 index4
inet 203.20.160.81 netmask ffffff00 broadcast 203.20.160.255
nge1: flags=201000803<UP,BROADCAST,MULTICAST,IPv4,CoS> mtu 1500 index 5
inet 10.56.120.40 netmask fffffc00 broadcast 10.56.123.255
ether 0:1e:68:9b:30:36

( iii ) # vi /etc/inet/hosts (/etc/inet/ipnodes is softlinked to /etc/inet/hosts)
#10.56.120.37 angel angel.apple.com loghost
203.20.160.91 angel angel.apple.com loghost

( iv ) # svcadm restart network/physical

( v ) # ifconfig -a
bge0: flags=201000803<UP,BROADCAST,MULTICAST,IPv4,CoS> mtu 1500 index 2
inet 203.20.160.91 netmask ff000000 broadcast 203.255.255.255
ether 0:1e:68:9b:30:33
nge0: flags=201000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4,CoS> mtu 1500 index 4
inet 203.20.160.62 netmask ffffff00 broadcast 203.20.160.255
ether 0:1e:68:9b:30:35
nge0:1: flags=201000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4,CoS> mtu 1500 index4
inet 203.20.160.81 netmask ffffff00 broadcast 203.20.160.255
nge1: flags=201000803<UP,BROADCAST,MULTICAST,IPv4,CoS> mtu 1500 index 5
inet 10.56.120.40 netmask fffffc00 broadcast 10.56.123.255
ether 0:1e:68:9b:30:36

However, I want the correct netmask & broadcast are 255.255.255.0 & 203.20.160.255
respectively, the same as nge0: (203.20.160.62) & nge0:1 (203.20.160.81).

The following ifconfig command does update the IP address together with both correct netmask & broadcast
but don't believe that this change will stay after reboot:

#ifconfig bge0 inet 203.20.160.91 netmask 255.255.255.0 broadcast 192.168.1.255

The value in /etc/netmasks (softlinked to /etc/inet/netmasks) is:
10.56.120.0 255.255.252.0

The value in /etc/defaultrouter is:
203.20.160.1

In short, which other files also need to be updated to pickup the correct netmask (255.255.255.0)
& broadcast (203.20.160.255) permanently, without having to reboot the server?

Thanks in advance,

Jack