Solaris

Hello,
I'm in the process of changing the netmask on my servers from /24 to /23.
I have been doing this on the Solaris 9 and the global zones on Solaris 10 servers.
sudo vi /etc/netmasks
sudo ifconfig <device> IP/23

The question is this, should I do it this way in the zone or should I do it from the global zone using zonecfg?
I'm trying to do this with the least impact.

Thanks for your time

It depends on whether the zone is configured with exclusive or shared IP stack.

Shared I think. If I do a ifconfig -a I get somthing like this.

#> ifconfig -a
eho inet 10.0.0.20
eho:1 inet 10.0.0.30 zone myzone

To be sure run:

Code:

zonecfg -z zonename export | grep ip-type

Code:

zonecfg -z zonename export | grep ip-type

What does that do?

This what I have been doing.

Code:

# zonecfg -z myzone
zonecfg:myzone> remove net address=10.0.0.20
zonecfg:myzone> add net
zonecfg:myzone:net> set address=10.0.0.20/23
zonecfg:myzone:net> set physical=bge0
zonecfg:myzone:net> end
zonecfg:myzone> verify
zonecfg:myzone> commit
zonecfg:myzone> exit
#

I need to reboot the zone for the change to take affect. I can't do that so I do this instead.

Code:

# ifconfig <device> 10.0.0.20/23

This changes the netmask until reboot and the zondcfg command will set it after the reboot.