Setting IP Address Properties

The ipadm command enables you to set IP address-specific properties after these addresses are assigned to interfaces. By setting these properties, you can determine the following:

• The netmask length

• Whether an IP address can be used as a source address for outbound packets

• Whether the address belongs to a global or non–global zone

• Whether the address is a private address

You use the following ipadm subcommands when working with IP address properties:

• The ipadm show-addrprop [-p property] [addrobj] subcommand displays address properties depending on the options that you use.

  To list the properties of all IP addresses, do not specify a property or an address object. To list the values of a single property for all IP addresses, specify only that property. To list all the properties of a specific address object, specify only the address object.

• The ipadm set-addrprop -p property=value addrobj subcommand assigns values to address properties. Note that you can only set one address property at a time.

• The ipadm reset-addrprop -p property addrobj subcommand restores any default values to the address property.

As an example, suppose you want to change the netmask of an IP address. The IP address is configured on the IP interface net3and is identified by the address object name net3/v4. The following commands show how to revise the netmask:

# ipadm show-addr
ADDROBJ     TYPE       STATE     ADDR
lo0/?       static     ok        127.0.0.1/8
net3/v4     static     ok        192.168.84.3/24

# ipadm show-addrprop -p prefixlen net3/v4
ADDROBJ  PROPERTY   PERM  CURRENT  PERSISTENT  DEFAULT   POSSIBLE
net3/v4  prefixlen  rw    24       24          24        1-30,32

# ipadm set-addrprop -p prefixlen=8 net3/v4
# ipadm show-addrprop -p prefixlen net3/v4
ADDROBJ  PROPERTY   PERM  CURRENT  PERSISTENT  DEFAULT   POSSIBLE
net3/v4  prefixlen  rw    8        24          24        1-30,32