Re: streams of fragments...

[Gamble <a629w () unb ca>]

 This sounds like a DOS attack.  By sending you many fragmented packets 
the attacker could consume a lot of the memory on your machine.  You could
counter this by blocking all IP fragments on your firewall,  but that
would also prevent legitimate activities.  The attacker is most likly
spoofing the IP addresses which you are seeing, so if it is a DOS,
tracking it down will be difficult.

-- Jamie Gamble


> Note More Fragments and Don't fragment are both set to 1??
>
> The packets arrive in pairs, both to the same destination address.
>
> Some sources send packets to just one destination others send them
> to many.
>
> When I look in the argus logs I see a single RST packet and argus does
> not report that it was fragmented.
>
> Any idea what is going on?
>
> Russell Fulton, Computer and Network Security Officer
> The University of Auckland,  New Zealand



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