[ILUG] Class C Addresses
paulj at alphyra.ie
Wed Nov 7 18:11:57 GMT 2001
On Wed, 7 Nov 2001, kevin lyda wrote:
> 65k connections isn't alot, however udp and tcp ports are seperate
indeed. 32k connections per inet namespace at any given point in time
given that you're remembering previous connections on the other 32k
UDP needs long timeouts cause you cant tell when the connection is
finished. (unless you peek inside the data at the user level protocol
TCP is better, cause obviously you can see a connection being closed,
however, there are still bad clients/servers, and there are still user
protocols that use many connections, eg HTTP to a site with a page
that references distinct servers, (eg an adserver, content, image
so 32/3 = 10k.
(ok, you'd use an HTTP proxy.. but you get the idea).
granted you'd have to be a really big site to truely be pushing the
limits of available ports, but it's still a hack.
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