On Tue, Sep 20, 2005 at 02:11:44PM +0200, frantisek holop wrote:
> hmm, on Mon, Sep 19, 2005 at 06:33:16PM -0600, jared r r spiegel said that
> > 
> >   what is the noise exactly?

  looks like TCP:6346 and UDP:1434 covers about half of that.

  if you're always doing flags S/SA and keeping state on your tcp, you could
  block (w/o log) flags R/R.  after tht there's a few UDP:3223s and randomness.
 
> 62.24.90/24 is my network, .1 is the gateway .255 is the broadcast, so i
> understand why i get everything in between...

  or what about something easy like:

block in on ne3 from any to !ne3

  (without log)

> the other nets, i don't know

  you could add -e to the tcpdump, and compare to your arp table,
  maybe some of the other nets are routed to one of the IPs in
  that /24.  ( eg - if the destination IP is one of those other
  nets, but the destination ethernet is one of the hosts in your
  /24 you know about )

  jared

-- 

[ openbsd 3.8 GENERIC ( sep 10 ) // i386 ]

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