NAME

ntx_macaddr − configure MVME339 MAC-layer addresses

SYNOPSIS

ntx_macaddr [−d device] [−i individual_addr ] [−c ]
[−m multicast_addr...]

DESCRIPTION

Ntx_macaddr assigns MVME339 MAC-layer addresses.  Addresses are given in hexadecimal notation as follows:
 
80:00:40:1a:22:f3
 
With no options, ntx_macaddr  displays the current individual address and multicast addresses (if any) on standard output. 

OPTIONS

−cDisable multicast addresses.  This option clears the list of multicast addresses for which the MVME339 board will receive frames. 

−dSet the MVME339 raw device file name.  This option will override the default MVME339 device name of /dev/xedt/mvme338_c0. 

−iTake the address following as an individual MAC-layer address for the NTX board’s IEEE 802.3 MAC-layer address.  This must have its least significant bit clear.  For example, fe:ff:ff:ff:ff:ff would be considered a valid individual address. 

−mAdd the following list of MAC-layer addresses as multicast addresses that the MVME339 board will receive.  These must all have their least significant bit set.  At most 32 multicast addresses may be programmed at any one time. 

EXAMPLES

To add two multicast address:

 ntx_macaddr -d /dev/rhp1 -m 1:0:0:0:0:0 83:0:4:1a:2:f3
 To clear out existing multicast addresses, change the
individual address and add a new multicast addresses:

 ntx_macaddr -c -i 0:80:0:70:0:1 -m 83:0:4:1a:2:00

FILES

/dev/xedt/mvme338_c0
~/include/ntx/net.h

SEE ALSO

netif_lib(3), mvme338(7)

Systech Release  —  1 Jun 1991