Changing the subnet mask on solaris 10

cjashu · February 18, 2012, 5:49pm

Hello,
can anyone help me with the command to change the subnet mask on solaris 10? The mask is currently 255.255.255.255 I will like to change it to 255.255.2555.0.

Thank you

bartus11 · February 18, 2012, 6:42pm

ifconfig interface netmask 255.255.255.0

Also edit /etc/netmasks and /etc/hostname.interface.

cjashu · February 21, 2012, 10:11pm

Thank you very much for the info.

fpmurphy · February 22, 2012, 9:20am

Why? I did not think that particular file contained netmask information.

bartus11 · February 22, 2012, 11:22am

It might. If it does, then netmask in /etc/hostname.interface will override settings in /etc/netmasks.

admin_xor · February 22, 2012, 5:19pm

Newer version of Solaris uses ipadm command to administer such cases. The advantage of using this command is that you do not have to go on changing things in a bunch of files. It's like a persistent ifconfig command.

Here's an example:

ipadm create-addr �T static �a 10.0.1.103/24 net0/v4stat

And see if the changes have been made perfectly:

ipadm show-if net0