Wednesday, April 22, 2009

Developer Zone: Improved NAT traversal for Wuala

Our newest series is called "Developer Zone". This is where we, the developers, have our say. Hope you like it! 

With one of our last versions of Wuala we introduced new methods for NAT traversal. For all the geeks out there, here is a link to the IETF RFC for STUN, the Simple Traversal of User Datagram Protocol (UDP) Through Network Address Translators (NATs): http://www.ietf.org/rfc/rfc3489.txt. We now support full, restricted, and port-restricted cone NATs. Isn't that great? ;-) 

Well it is. It means that more Wuala users can trade storage without having to configure their NAT.

 

5 Kommentare:

  1. Does it mean machine between firewall which only allow http,https,ftp can trade storage now ?

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  2. STUN rox and is the horror of some sysadmins out there.

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  3. It does not affect users behind a firewall, however many home users who usually have NAT.

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  4. But it still doesn't seem to allow me to trade storage at my office PC. There's no firewall in between but I get a red cross and when i hit "Check again" I keep getting this like in the "old" days:
    "Analyzing Connection...
    Got answer from Ping Server 'A', your external address is '/207.102.122.113:1248'.
    Got answer from Ping Server 'B', your external address is '/207.102.122.113:2299'.
    Trying to find UPnP router...
    ...no UPnP router could be found.
    '/207.102.122.113:1248' does not accept incoming connections.
    Your connection is not suitable for trading storage.
    Please enable UPnP on your router/firewall or configure it manually to forward incoming UDP connections on port 7,329 to this computer. Afterwards you might need to restart your router and/or Wuala."
    What may be the problem here?

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  5. Unfortunately, routers from different manufacturers behave differently. It's generally difficult to make it work in all possible hardware settings.

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