The subnet calculator helps you design networks by taking an IP address and network mask and returning information such as network, broadcast address, and host range.
One of a set of tools we're offering as a way of saying thank you for being a part of the community.
You can edit the iSQL*Plus configuration file, isqlplus.conf, to change
the lines affecting the timeout behavior. The syntax of the two lines to
change in the configuration file is:
iSQLPlusTimeOut {On|Off}
iSQLPlusTimeOutInterval {n}
The default is 60.