Sun Microsystems Sun Workstation 100U System Manager's Manual page 195

IFCONFIG ( 8C )
MAINTENANCE COMMANDS IFCONFIG ( 8C )
NAME
ifconfig - configure network interlace parameters
SYOPNSIS
/ete/lfeonft. interlace [ EtherneCoddre8B ) [ hOBtnameJ
I
parameters )
DESCRIPTION
Ilconfig is used to assign an address to a network interrace and lor to configure network interface
parameters. IJconfig must be used at boot time to define the network address of each interlace
present on a machine; it may also be used at a later time to redefine an interrace's address. Used
without options, iJconfig displays the current configuration for a network interlace. Only the
super-user may modify the configuration of a network interrace.
The
Interface
parameter is a string of the form "name unit", for example "ieO".
OPTIONS
EtherneCaddrt:ss is the hardware Ethernet address of a given machine. The address is a
~byte
hexadecimal value; each byte of the address is separated by a colon. A typical Ethernet adddress
is '8:0:20:1:1:A3'. This address is contained in the ID PROM on the Sun-2 CPU Board, and is
reported at boot time as one of the PROM monitor's sign-on messages. The EtherneCaddreBB
option is normally not used - the hardware supplies the default; the option is used only when
trying to talk to a device which does not support ARP (like a VAX on a 4.1c network).
hoBtname may be either the hostname of a given machine (present in the hostname database,
hosts(S)), or the complete Internet address consisting of your system's network number and the
machine's unique host number. A typical Internet address might be "192.9.200.44", where
"192.9.200" is the network number and "44" is the machine's hostnumber. To lind a machine's
Internet address, consult the local
I
etcl hOBtB file.
The following parameters may be set with i/config:
up
down
up
Mark an interlace "up".
Mark an interlace "down". When an interlace is marked "down", the system
will not attempt to transmit messages through that interface.
Enable the use of a "trailer" link level encapsulation when sending (default). If
a network interface supports trailers, the system will, when possible, encapsulate
outgoing messages in a manner which minimizes the number of memory to
memory copy operations perlormed by the receiver.
Disable the use of a "trailer" link level encapsulation.
Enable the use of the Address Resolution Protocol in mapping between network
level addresses and link level addresses (default). This is currently implemented
for mapping between DARPA Internet addreses and 10Mbls Ethernet addresses.
-arp
DIAGNOSTICS
Disable the use of the Address Resolution Protocol.
Messages indicating the specified interlace does not exit, the requested address is unknown, the
user is not privileged and tried to alter an interrace's configuration.
SEE ALSO
rc(8), intro(4N), netstat(l)
40
Last change: 12 January 1984
Sun Release
1.1