Re: ICMP - Today India, Samoa, and Iran are in the tank - back to orginal thread DDoS, or No DDoS?

[vigilaro () gmx net]

Today Iran (Terhan), India (Bangalore) and Samoa are dragging
the Asian index down. 

how you determine if its' DoS on these routers, or not?  Is there a 
Public Darknet
Monitoring Site out there tracking backscatter, or other such focused 
traffic?

Andreas-


Cedric Blancher wrote:

> Le lun 18/10/2004 à 17:12, james edwards a écrit :
>  
>
> > > I don't see the reason why it would cause a problem, as firewall is able
> > > to spot ICMP related to server's IP connections as well...
> > >      
> > New connections to the server must be implecitally allowed, as there
> > is no established state to refer to.
> >    
>
> I guess that if you want to run a server behind a firewall, then you
> have to allow some TCP or UDP connections to it... And you only have to
> deal ICMP stuff for thoses connections, as others are prohibited, and
> the firewall does this.
>
> I really don't see where the problem is.
>
> My point is just to show that we do have now solutions to filter ICMP in
> a smart way that won't break PMTU discovery and stuff that rely on ICMP
> messages reception...
>
>
> PS : I think we could end this offline, we're far away from original
> topic :)
>
>  


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