System Administration Guide: IP Services

Adding a Subnet to a Network Task Map

If you are changing from a network that does not use a subnet to one that does use a subnet, perform the the tasks in the following table.

Table 4–2 Adding a Subnet to a Network Task Map

Description 

For Instructions, Go To ... 

1. Decide on the new subnet topology, including considerations for routers and locations of hosts on the subnets. 

Adding Routers, What Is Subnetting?, and Network Classes.

2. Assign all subnet and host addresses. 

Setting Up an IP Address Scheme and Parts of the IPv4 Address.

3. Modify the /etc/inet/netmasks file, if you are manually configuring TCP/IP, or supply the netmask to the Solaris installation program.

netmasks Database and Creating the Network Mask for IPv4 Addresses.

4. Modify the /etc/inet/hosts and /etc/inet/ipnodes files on all hosts to reflect the new host addresses.

hosts Database and ipnodes Database.

5. Reboot all machines.