summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorlteo <lteo@openbsd.org>2014-06-03 02:57:29 +0000
committerlteo <lteo@openbsd.org>2014-06-03 02:57:29 +0000
commit0c0a6fe85047ad5793b78248bb10c4add1ba5b84 (patch)
tree405fb34791a50cbd1e8e32c59a9df306e2766103
parentApply the ``make sure sigcontext does not overlap pending DAE addresses'' (diff)
downloadwireguard-openbsd-0c0a6fe85047ad5793b78248bb10c4add1ba5b84.tar.xz
wireguard-openbsd-0c0a6fe85047ad5793b78248bb10c4add1ba5b84.zip
Expand the IP checksum offload subsection to mention the same issue with
protocol checksum offload, where tcpdump might see bad checksums on valid packets. ok henning@ jmc@
-rw-r--r--usr.sbin/tcpdump/tcpdump.88
1 files changed, 4 insertions, 4 deletions
diff --git a/usr.sbin/tcpdump/tcpdump.8 b/usr.sbin/tcpdump/tcpdump.8
index af9263d9713..cbe04a58f14 100644
--- a/usr.sbin/tcpdump/tcpdump.8
+++ b/usr.sbin/tcpdump/tcpdump.8
@@ -1,4 +1,4 @@
-.\" $OpenBSD: tcpdump.8,v 1.82 2014/02/19 04:50:36 lteo Exp $
+.\" $OpenBSD: tcpdump.8,v 1.83 2014/06/03 02:57:29 lteo Exp $
.\"
.\" Copyright (c) 1987, 1988, 1989, 1990, 1991, 1992, 1994, 1995, 1996
.\" The Regents of the University of California. All rights reserved.
@@ -19,7 +19,7 @@
.\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
.\"
-.Dd $Mdocdate: February 19 2014 $
+.Dd $Mdocdate: June 3 2014 $
.Dt TCPDUMP 8
.Os
.Sh NAME
@@ -1819,8 +1819,8 @@ Ethernet interface removed the packet from the wire and when the kernel
serviced the
.Dq new packet
interrupt.
-.Ss IP Checksum Offload
-Some network cards support IP checksum offload.
+.Ss IP and Protocol Checksum Offload
+Some network cards support IP and/or protocol checksum offload.
Packet headers for such interfaces erroneously indicate a bad checksum,
since the checksum is not calculated until after
.Nm