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Warn about some broken drivers *cough* Broadcom *cough* ignoring

DLIOCRAW and overwriting the Ethertype with the SAP we happened to bind
to (the fact that we requested SAP promiscuity nonwithstanding).
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yuguy committed Sep 7, 2005
1 parent e48e814 commit bd73c7de4ac7c136cd3dd8f8be9a621f4a09f083
Showing with 6 additions and 2 deletions.
  1. +6 −2 pcap.3
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8 pcap.3
@@ -1,4 +1,4 @@
-.\" @(#) $Header: /tcpdump/master/libpcap/Attic/pcap.3,v 1.64.2.7 2005-07-07 02:04:35 guy Exp $
+.\" @(#) $Header: /tcpdump/master/libpcap/Attic/pcap.3,v 1.64.2.8 2005-09-07 08:29:17 guy Exp $
.\"
.\" Copyright (c) 1994, 1996, 1997
.\" The Regents of the University of California. All rights reserved.
@@ -689,7 +689,11 @@ supplied to
as the source link-layer address, if the header contains such an
address, might be changed to be the address assigned to the interface on
which the packet it sent, if the platform doesn't support sending
-completely raw and unchanged packets.
+completely raw and unchanged packets. Even worse, some drivers on some
+platforms might change the link-layer type field to whatever value
+libpcap used when attaching to the device, even on platforms that
+.I do
+nominally support sending completely raw and unchanged packets.
.PP
.B pcap_sendpacket()
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