Re: tcpdump dropping packets

["Robert Long" <rlong () sandia gov>]

Here are some of the answers to your questions

> What is your os ?
I am running Linux Red Hat 9, with kernel 2.4.20.

> if linux, you use MMAP ? (libpcap 08beta)
libpcap v0.7.2

> what is your tunning conf ?
1 > /proc/sys/net/ipv4/tcp_timestamps
1 > /proc/sys/net/ipv4/tcp_window_scaling
1 > /proc/sys/net/ipv4/tcp_sack
8388608 > /proc/sys/net/core/wmem_max
8388608 > /proc/sys/net/core/rmem_max
"4096 87380 4194304" > /proc/sys/net/ipv4/tcp_rmem
"4096 65536 4194304" > /proc/sys/net/ipv4/tcp_wmem

> what is tcpdump option use ?
tcpdump -i ethX -w outputfile host hostcomputer

> what is your tool to send Gigabit trafic ?
iperf 1.7
command at sender: iperf -c hostcomputer
command at receiver: iperf -s


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