Howdy, On Fri, Oct 14, 2011 at 8:11 PM, Patrick W. Gilmore <patrick@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-guid.... 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