Andrei POPESCU wrote at 2012-06-02 13:34 -0500: > On Sb, 02 iun 12, 16:02:05, Claudius Hubig wrote: > > No. I was not referring to a static but to a public IP address. If > > the user has a public, i. e. internet-routable IP address, everything > > is fine, even if it is not static. However, if the user sits behind a > > NAT or something similar that blocks incoming connections, a third > > party certainly is required (such as a file transfer proxy for XMPP). > > Port forwarding?
...a possible but less viable option when NAT happens at the ISP routers.
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