With this firewall skype ends up routing traffic through a central server as well instead of going p2p.
On Fri, 2006-12-15 at 17:11 -0700, Jeff Capone wrote: > I have only really seen it in public hotspots. Strangely enough, one of our > teams member's firewall does not let UDP in or out. I am not really sure > why, it is just a Netgear CG814M and I do not think he added any special > rules. > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of David Barrett > Sent: Friday, December 15, 2006 4:57 PM > To: 'theory and practice of decentralized computer networks' > Subject: RE: [p2p-hackers] Re: A new approach to NAT/Firewall traversal > > > -----Original Message----- > > From: Jeff Capone > > > > Some firewall do not let UDP in or out. The advantage with TCP is > > even if you have a very restricted firewall on one side, the outbound > > connection will look like a normal tcp open to it and it will allow > > the connection to form. > > Have you seen this much in practice? While I'm sure this happens to some > degree -- especially in locked-down corporate environments -- those same > environments also probably block outbound TCP. > > Have you seen many environments that allow outbound, unproxied TCP > connections while blocking outbound UDP? > > In my experience, straight up UDP blockage is exceedingly rare -- less than > 1% of connections surveyed, though my demographic tends toward home users. > > -david > > _______________________________________________ > p2p-hackers mailing list > [email protected] > http://lists.zooko.com/mailman/listinfo/p2p-hackers > > > _______________________________________________ > p2p-hackers mailing list > [email protected] > http://lists.zooko.com/mailman/listinfo/p2p-hackers _______________________________________________ p2p-hackers mailing list [email protected] http://lists.zooko.com/mailman/listinfo/p2p-hackers
