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-rw-r--r-- | contrib/tcpdump/tcpdump.1 | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/contrib/tcpdump/tcpdump.1 b/contrib/tcpdump/tcpdump.1 index 5a009ac..3d5bdbd 100644 --- a/contrib/tcpdump/tcpdump.1 +++ b/contrib/tcpdump/tcpdump.1 @@ -2257,6 +2257,13 @@ patches@tcpdump.org NIT doesn't let you watch your own outbound traffic, BPF will. We recommend that you use the latter. .LP +When running +.BR tcpdump +with the +.B \-v +option on a network interface supporting checksum off-loading, +IP packets sourced from this machine will have many false 'bad cksum 0' errors. +.LP On Linux systems with 2.0[.x] kernels: .IP packets on the loopback device will be seen twice; |