Subject: Re: ftp transfer speed anomaly
To: Bill Sommerfeld <>
From: Greg Oster <>
List: current-users
Date: 12/18/1998 15:17:46
Bill Sommerfeld writes:
> I just (two minutes ago) committed some changes to tcpdump.. which I
> could have sworn I commited months ago.. to check the tcp and udp
> checksums when the -v flag is given and a large enough `-s' parameter
> is given.
> Try:
> 	tcpdump -s 1600 -x -v ....

Just tried this, and the packets appear to be fine ("tcp sum ok") at the
"home" machine, at least as observed by bpf.  Now I need to figure out if 
they are still fine when they actually hit the wire (I suspect they are not..)

Thanks for adding this..


Greg Oster