Howdy, On Fri, Oct 14, 2011 at 8:11 PM, Patrick W. Gilmore <patr...@ianai.net> wrote: > > On Oct 13, 2011, at 7:26 PM, Matthew Kaufman wrote: > > On 10/13/11 3:30 PM, Patrick W. Gilmore wrote: > >> In fact, Skype, just as a for instance, is worse on hotel wifi as > >> launching the app on a laptop makes you a middle node for some > >> conversations. > > > > Per the Skype IT administrator guide, a Skype node will not become a > > supernode unless it has a public IP address and meets the memory, > > bandwidth, and uptime requirements. It will not become a relay node unless > > it has a public IP address and is directly reachable from the Internet. > > > > It is very unlikely that launching the Skype app on a laptop on hotel wi-fi > > would meet these requirements. > > In the last 5 seconds, without touching Skype or having any active voice or > chat sessions open, my computer has had communication with 14 IP addresses. > Here is a sample of some:
For "IT administrators" (which probably qualifies most people on this list) there is a detailed 26 page guide to how Skype communicates on a network, when you may become a supernode, and how to configure the program (including to never become a supernode) using GPO (registry switches) or XML files at http://download.skype.com/share/business/guides/skype-it-administrators-guide.pdf. There is a summary of the Supernodes section (concentrating on how to stop supernodes happening if you have no control of the client) at http://www.skype.com/intl/en-us/security/universities/. Anybody who might end up with Skyoe clients on their network might want to give it a gander, as it has some useful info on things like network impact (along with a lot of stuff that nobody cares about and you can skip). HTH, Alex
