[p2p-hackers] Kad Network with Kademlia

[Eunsoo Shim]

>>>>I measured it to be around a million non-firewalled peers, although
>>>>that was a few months back.
>>>>        
>>>>
>>Daniel, by "non-firewalled" do you mean truly, those that aren't behind 
>>a firewall, or rather those for which NAT/firewall traversal doesn't 
>>work?
>>    
>>
>
>I mean those that can receive unsolicited TCP and UDP packets on the
>Kad/eMule ports.  Either they must not be firewalled/NATed or the user
>must manually punch a whole to redirect those ports from the firewall
>device.
>  
>
So port 80 or 443 is NOT used at all for Kad Network?

>Kad uses "iterative" DHT routing.  If I'm a client and want to do a
>lookup, I query some of my contacts to get their next hop for my
>target, then I query that peer for it's next hop, etc.  Therefore,
>it's important that any host participating in Kad's DHT routing
>structure be able to receive unsolicited packets.
>
>  
>
"Iterative" DHT routing is inefficient compared to "recursive" one.
Is "iterative" routing used because of a concern about DoS attacks?
Thanks.

Eunsoo