On Wed, Mar 19, 2003 at 04:15:54AM -0600, Robert Garrett wrote:
> On Wed, Mar 19, 2003 at 11:06:10AM +0100, John Angelmo wrote:
> > I needed to do some tcpdump from my box on the rl0 interface. The IP was
> > changed to one that dosn't match our network and I noticed that
> > everything had a 3 min delay(both traffic in and out from the
> > interface), my current build is from yesterday and the box didn't have
> > any heavy load. As soon as I changed back to my standard IP everything
> > worked fine, but still a 3 min delay seems odd.
> >
> > /John
> tcpdump -ln
>
> -l kills buffered output, i.e. waiting for a large amount of data before
> it starts writing
-l doesnt kill bufferd output, in contrary, it makes the output bufferd.
-l Make stdout line buffered. Useful if you want to see the data
while capturing it. E.g.,
``tcpdump -l | tee dat'' or ``tcpdump -l >
dat & tail -f dat''.
The dely you are probably noticing is because of resolving problems , try -n
Regards,
Joris
>
> -n tells us not do lookup each ip..
>
> should help
>
> rob
> >
> >
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>
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