4.1cBSD/usr/man/man4/il.4v

.TH IL 4V "25 February 1983"
.UC 4
.SH NAME
il \- Interlan 10 Mb/s Ethernet interface
.SH SYNOPSIS
.B "device il0 at uba0 csr 161000 flags 0x4e000298 vector ilrint ilcint"
.SH DESCRIPTION
The
.I il
interface provides access to a 10 Mb/s Ethernet network through
an Interlan controller.
In configuring, the flags value is used to define the 
network to which the interface is attached.
The host's address
is discovered at boot time by reading it from the device's command
register.
.PP
The interface handles the Internet protocol family,
with the interface address maintained in Internet format.
The three low-order bytes of the board's built-in Ethernet address
are used as the 24-bit Internet address, and the network number is
taken from the flags as described above.  The software assumes that
all Ethernet addresses on the network will have the same three high-order
bytes.
.SH DIAGNOSTICS
\fBil%d: input error\fP.  The hardware indicated an error
in reading a packet off the cable or an illegally sized packet.
.PP
\fBil%d: can't handle af%d\fP.  The interface was handed
a message with addresses formatted in an unsuitable address
family; the packet was dropped.
.SH SEE ALSO
intro(4N), inet(4F)
.SH BUGS
The PUP protocol family should be added.
.PP
A better mapping from Ethernet to Internet addresses is needed if one is
to mix controllers from different vendors on a network.