When you already install Solaris 10, what you need to do is to setup the network configuration. Here we are going to talk about how to change the default IP address, adding up Ethernet card, and some simple routing.

The first one is to change the IP address in e1000g0 interface, this setting will be persist over reboot

Edit /etc with format hostname.interface

vi /etc/hostname.e1000g0

Inside there write

Ip-address netmask + netmask

192.168.3.9 netmask + 255.255.255.0

Now you need to edit /etc/inet/hosts

Add this

Ip-address hostname

192.168.3.9 test-machine

Now you need to edit /etc/inet/ipnodes

Add this

Ip-address hostname

192.168.3.9 test-machine

After that type:

reboot — -r

The next step is to add and configure extra ethernet card in your machine, if you want to know what Ethernet is plug in your machine, type

dladm show-link

Enable the network card, in this case e1000g3, you can change according your machine

ifconfig e1000g3 plumb

To check you can type ifconfig –a, to see if e1000g3 is already activated, to inactivate the Ethernet card just type

ifconfig e1000g3 unplumb

Now we can add an IP address to e1000g3,for example we wan to put 192.168.2.9 to that ethernet type:

ifconfig e1000g3 192.168.2.9 netmask 255.255.255.0 broadcast 192.168.2.255

Then you have to bring up the network card

ifconfig e1000g3 up

But wait if you just do that, next time you reboot, all of your configuration will be gone, to prevent it this is what you need to do

Make a new file in /etc with format hostname.interface

vi /etc/hostname.e1000g3

Inside there write

Ip-address netmask + netmask

192.168.2.9 netmask + 255.255.255.0

Now you need to edit /etc/inet/hosts

Add this

Ip-address hostname

192.168.2.9 test-machine

Now you need to edit /etc/inet/ipnodes

Add this

Ip-address hostname

192.168.2.9 test-machine

After that type:

reboot — -r

Then the next step that you can do is to add some routing to this configuration

route –p add default your-gateway

route –p add default 192.168.2.1

-p = persistence over reboot

Default = all destination 0.0.0.0/0.0.0.0

This will try to register a default gateway for the PC, if you want to add another routing for this PC to specified network you can do:

route –p add –net network-address –gateway gateway-address

I suggest you always to use –p so that your routing wont be flushed when the machine is reboot. Also you need your gateway in /etc/defaultrouter

To check your routing you can type:

netstat –rn

To flush your routing, but the one that from installation wont be flushed

route flush

These configuration at least will make your Solaris box able to communicate with other machine.