Name
ifconfig
Synopsis
ifconfig [options
] [interface address_family address parameters
]
Assigns an address to a network interface and/or configures network interface parameters. ifconfig is typically used at boot time to define the network address of each interface on a machine. It may be used at a later time to redefine an interface’s address or other parameters. Without arguments, ifconfig displays the current configuration for a network interface. Used with a single interface
argument, ifconfig displays that particular interface’s current configuration.
Display options
- -a
Display information about all configured interfaces. This is the default when no options and arguments are specified.
- -d
Display information about interfaces that are down.
- -L
Display address lifetime for IPv6 addresses.
- -l
Display all configured interfaces, names only.
- -m
Display all supported media for specified interface.
- -u
Display information about interfaces that are up.
Arguments
-
interface
String of the form
name unit
--for example,en0
.-
address
Hostname or address in “dotted-octet” notation; for example, 172.24.30.12.
-
address_family
Because an interface may receive transmissions in differing protocols, each of which may require separate naming schemes, you can specify the
address_family
to change the interpretation of the remaining parameters. You may specify inet (the default; for TCP/IP) or inet6.-
dest_address
Specify the address of the correspondent on the other end of a point-to-point link.
The following ...
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