1*47672Scael.\" Copyright (c) 1990, 1991 The Regents of the University of California. 244679Sbostic.\" All rights reserved. 344679Sbostic.\" 444679Sbostic.\" This code is derived from software contributed to Berkeley by 544679Sbostic.\" the Systems Programming Group of the University of Utah Computer 644679Sbostic.\" Science Department. 744679Sbostic.\" 844679Sbostic.\" %sccs.include.redist.man% 944679Sbostic.\" 10*47672Scael.\" @(#)le.4 5.2 (Berkeley) 03/27/91 1144679Sbostic.\" 12*47672Scael.Dd 13*47672Scael.Dt LE 4 hp300 14*47672Scael.Os 15*47672Scael.Sh NAME 16*47672Scael.Nm le 17*47672Scael.Nd 18*47672Scael.Tn HP AMD 19*47672Scael7990 20*47672Scael.Tn LANCE 21*47672ScaelEthernet interface 22*47672Scael.Sh SYNOPSIS 23*47672Scael.Cd "device le0 at scode?" 24*47672Scael.Sh DESCRIPTION 2544679SbosticThe 26*47672Scael.Nm le 2744679Sbosticinterface provides access to a 10 Mb/s Ethernet network via the 28*47672Scael.Tn AMD 29*47672Scael7990 30*47672Scael.Tn LANCE 31*47672ScaelEthernet chip set. 32*47672Scael.Pp 3344679SbosticEach of the host's network addresses 34*47672Scaelis specified at boot time with an 35*47672Scael.Dv SIOCSIFADDR 36*47672Scael.Xr ioctl . 37*47672ScaelThe 38*47672Scael.Xr le 3944679Sbosticinterface employs the address resolution protocol described in 40*47672Scael.Xr arp 4 4144679Sbosticto dynamically map between Internet and Ethernet addresses on the local 4244679Sbosticnetwork. 43*47672Scael.Pp 4444679SbosticThe use of ``trailer'' encapsulation to minimize copying data on 4544679Sbosticinput and output is supported by the interface but offers no advantage 46*47672Scaeldue to the large 47*47672Scael.Tn HP 48*47672Scaelpage size. 49*47672ScaelThe use of trailers is negotiated with 50*47672Scael.Tn ARP . 5144679SbosticThis negotiation may be disabled, on a per-interface basis, 52*47672Scaelby setting the 53*47672Scael.Dv IFF_NOTRAILERS 54*47672Scaelflag with an 55*47672Scael.Dv SIOCSIFFLAGS 56*47672Scael.Xr ioctl . 57*47672Scael.Sh DIAGNOSTICS 58*47672Scael.Bl -diag 59*47672Scael.It le%d: hardware address %s. 6044679SbosticThis is a normal autoconfiguration message noting the 6 byte physical 6144679Sbosticethernet address of the adapter. 62*47672Scael.Pp 63*47672Scael.It de%d: can't handle af%d. 64*47672ScaelThe interface was handed 6544679Sbostica message with addresses formatted in an unsuitable address 6644679Sbosticfamily; the packet was dropped. 67*47672Scael.Pp 6844679SbosticThe following message indicate a possible hardware error performing 6944679Sbosticthe indicated operation during autoconfiguration or initialization. 70*47672Scael.Pp 71*47672Scael.It le%d: init timeout, stat = 0x%x. 7244679SbosticThe hardware did not respond to an initialize command during reset. 7344679SbosticThe reset procedure continues anyway. 74*47672Scael.El 75*47672Scael.Sh SEE ALSO 76*47672Scael.Xr intro 4 , 77*47672Scael.Xr inet 4 , 78*47672Scael.Xr arp 4 79*47672Scael.Sh HISTORY 80*47672ScaelThe 81*47672Scael.Nm le 82*47672Scaeldriver 83*47672Scael.Ud 84