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Re: Programs for direct friend-to-friend file transfer?

Brian wrote at 2012-06-02 08:13 -0500:
> On Sat 02 Jun 2012 at 12:41:22 +0200, Claudius Hubig wrote:
> > Do you have a have public IP address (either IPv4 or IPv6)? If
> > that is not the case, you will need a third party in order to
> > establish the connection.
> A third party is not required. For the occasional transfer of files the
> address (if it changes) may be obtained from the router and emailed to
> the friend.

Brian, you seem to be assuming that the router has a public IP (on the WAN 
side), which is often not true.  Unfortunately, many ISPs provide their 
customers with only private/local IPs behind NAT; inbound connections are 
therefore not possible unless the ISP agrees to forward a particular port or 
port range.

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