Also given the shared media-ness, there is a pretty good chance that this is just a
misconfiguration on another NAT-ing linux box in your neighborhood. Not everyone is as
good at configuring routers as you;)
Graham Hemmings wrote:
>
> Cable modems are a shared medium much like an Ethernet hub. Given the
> filtering you describe it seems likely that your attacker would have to be
> on the same shared segment as you. You could run a packet sniffer like
> tcpdump to try and obtain the MAC address of the hacker (assuming that
> hasn't been spoofed also). Armed with this info you should approach your
> cable provider to stop the attacks.
>
> Graham.
>
> At 16:32 29/07/2000, you wrote:
> > Hello all!
>
> ><SNIP>
>
> > So this is the situation. Now for the questions:
> >1) Am I correct in assuming that this spoof can only come from the ISP's
> >network? If not, how does one route such requests?
> >2) Does anyone have suggestions on how to counter such spoofs? Pointers to
> >relevant websites are appreciated, and personal experiences are also welcome.
> >
> > CU O,
> >
> > Leonard.
>
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Sam Bayne - System Administrator
North Seattle Community College
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