1.\" $NetBSD: ddn.4,v 1.13 2017/08/01 11:11:17 wiz Exp $ 2.\" 3.\" Copyright (c) 1983, 1991, 1993 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. Neither the name of the University nor the names of its contributors 15.\" may be used to endorse or promote products derived from this software 16.\" without specific prior written permission. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28.\" SUCH DAMAGE. 29.\" 30.\" from: @(#)ddn.4 8.1 (Berkeley) 6/5/93 31.\" 32.Dd June 5, 1993 33.Dt DDN 4 vax 34.Os 35.Sh NAME 36.Nm ddn 37.Nd 38.Tn DDN 39Standard Mode 40.Tn X.25 41.Tn IMP 42network interface 43.Sh SYNOPSIS 44.Cd "ddn0 at uba0 csr 166740 vector ddnintr" 45.Sh DESCRIPTION 46NOTE: This driver has not been ported from 47.Bx 4.4 48yet. 49.Pp 50The 51.Nm ddn 52device provides a 53.Tn DDN 54Standard Mode 55.Tn X.25 56interface to an 57.Tn IMP 58using 59the 60.Tn ACC ACP625 61.Tn X.25 62board. 63It is normally used for connecting to the Defense Data Network 64.Pq Tn DDN . 65The controller itself is not accessible 66to users, but instead provides a network interface for the 67Internet Protocol described in 68.Xr ip 4 . 69.Sh DIAGNOSTICS 70.Bl -diag 71.It ddn%d: not alive. 72The initialization routine was entered even though the device 73did not autoconfigure. 74This indicates a system problem. 75.It ddn%d: failed getting UBA resources for lcn %d." 76Insufficient 77.Tn UNIBUS 78resources existed to initialize the device. 79This is likely to be a shortage of 80.Tn UNIBUS 81mapping registers. 82.It ddn%d: couldn't get X25 init buffer. 83This indicates that an 84.Em mbuf 85could not be allocated for sending the initialization message to the 86.Tn ACP Ns 625 . 87.It DDN: illegal X25 address length! 88.It DDN: illegal X25 address format! 89These errors indicate a problem with the called 90.Tn X.25 91address received 92from the 93.Tn IMP 94on an incoming call. 95.It X25 RESET on lcn = %d. 96This indicates that an unexpected 97.Tn X.25 98.Tn RESET 99was received on the 100indicated 101.Tn LCN . 102.It X25 INTERRUPT on lcn = %d, code = %d. 103This indicates that an unexpected 104.Tn X.25 105.Tn INTERRUPT 106Packet was received on the 107indicated 108.Tn LCN . 109.It ddn%d: failed to get supr msg bfr! 110This indicates that an 111.Em mbuf 112could not be allocated for sending a supervisor message to the 113.Tn ACP625 . 114.El 115.Pp 116Any other error message from 117.Ql ddn%d: 118indicates a serious error 119detected by either the driver or the 120.Tn ACP Ns 625 121firmware. 122.Sh SEE ALSO 123.Xr ip 4 , 124.Xr netintro 4 125.Sh HISTORY 126The 127.Nm 128interface appeared in 129.Bx 4.3 . 130