Finally, i realized that i was establishing SSH connections. My root credentials were enabled for telnet connection (i knew it was a basic mistake i was committing) .
I could do the...
Thanks Jim for your reply.
Actually, subnet is 255.255.255.0 and i want to change it to 255.255.0.0. I will explore on that CIDR thing you are mentioning.
I am new on unix systems. I am working with a Solaris 10 OS.
When i try to change netmask on certain interface:
[emc: ../admin 177> ifconfig bge1 netmask 255.255.0.0]