SN(4)                OpenBSD Programmer's Manual (Mac68K)                SN(4)

NAME
     sn - Ethernet driver for SONIC-based ethernet adapters

SYNOPSIS
     sn* at obio?
     sn* at nubus?

DESCRIPTION
     The sn interface provides access to a 10 Mb/s Ethernet network via the
     National Semiconductor DP83932 (SONIC) Ethernet chip set.

     Each of the host's network addresses is specified at boot time with an
     SIOCSIFADDR ioctl(2). The sn interface employs the address resolution
     protocol described in arp(4) to dynamically map between Internet and Eth-
     ernet addresses on the local network.

HARDWARE
     The sn interface is currently known to support the following NuBus cards:

           Cayman Gatorcard PDS
           Dayna DaynaPort/E30

     In addition, the sn interface supports on-board ethernet for 500-series
     PowerBooks and non-AV Quadras.

DIAGNOSTICS
     sn%d at %s%d: address %s, type %s %dKB memory.  This is a normal autocon-
     figuration message noting the 6 byte physical ethernet address of the
     adapter, its manufacturer, and how much buffer memory it has.

SEE ALSO
     ae(4), arp(4), inet(4), netintro(4), ifconfig(8)

HISTORY
     The sn interface first appeared in OpenBSD 2.1.

OpenBSD 2.9                      June 7, 1997                                1
