[p2p-hackers] Kad Network with Kademlia

[Daniel Stutzbach]

On Sat, Dec 17, 2005 at 12:21:43PM -0800, David Barrett wrote:
> >Daniel Stutzbach wrote:
> >>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.

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.

-- 
Daniel Stutzbach                           Computer Science Ph.D Student
http://www.barsoom.org/~agthorr                     University of Oregon