Solaris

Hi Admins,

For testing purpose we are moving sun solaris 9 in to test vlan .So i need to change the ip, subnet mask and gateway temperorily. Below are the procedure m going to perform.

1. Backup of ifconfig -a , netstat -an, netstat -rn , netstat -in
2. Backup of /etc/hosts,/etc/netmasks,/etc/defaultrouter,/etc/ipnodes
3.ifconfig hme0 unplumb
4.ifconfig hme0 plumb
5.ifconfig hme0 <new ip> netmask <new subnet> up
6.route add default <new gateway>
7.Modiy hosts file with new entries.


Anything i missed here..?

Do i need to add broadcast ip

My main concern with routings.Below is my current routing table.

Routing Table: IPv4
Destination Gateway Flags Ref Use Interface
-------------------- -------------------- ----- ----- ------ ---------
10.50.23.0 10.50.23.81 U 1 24305 eri0
2.0.0.0 2.1.1.2 U 1 2349 ge0
224.0.0.0 10.50.23.81 U 1 0 eri0
default 10.50.23.1 UG 1 96300
127.0.0.1 127.0.0.1 UH 149185425 lo0


After changing ips and gateway, do i need new routes so that destination system will reach to my new ip..?

Please share your expert thoughts.

Regards
newsol

It seems you did the task very well , Nothing left to say.
Broadcast address will be set automatically based on your subnet mask.

Your routing table seems to be okay

No, You already did

One more thing please post your code or output posting inside code tags

Looks OK to me but a word (sentence) of warning and I say this as an SA that I worked with that should have known better screwed up doing this task.

The SA mentioned could not login (incorrect root password) via the console so he ssh'd in and changed the network address. He was then understandably kicked out of the ssh session and could no longer log in. This was on a live production system... Not good!
In the case above he had no access to the Solaris media cd roms or blank cdr's, but he did have a laptop so I talked through installing Virtualbox / Solaris and setup a boot server which enable him to mount /a and change the root password.

So stating the obvious make sure you are able connect to the system via its console! ;-)

Regards,
SRG

don't need to change DNS?

Hi Admins,

Thanks for the response. Actually activity will be done next week.So i am preparing checklist or the same. Now i require your expert thoughts on my checklist. doi need to make any changes.

Regard
newsol

Please find the poa for temperorily ip subnet and default gateway change for solaris 9.Please let me know if i missed anything.

Code:

 
ifconfig hme0 down
ifconfig hme0 unplumb
ifconfig hme0 plumb  
ifconfig hme0 <ip address> netmask <subnet> up     
route add default <default gateway>

Regards
newsol