The p2p toolkit is a set of network tools that simplify peer-to-peer communication. SocketSynergy is one of these tools.
The p2p Toolkit consists of the following tools:
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SocketSynergy is a portable trick for opening holes in outgoing firewalls. When used on both ends prior to actually connecting, this leads to the ability of connecting UDP, TCP and SCTP in spite of local firewalls on both ends. SocketSynergy relies on well-defined firewall behaviour. It assumes transparant addressing. It offers an extra socket API call, which is applied directly for root users, or passed on to a daemon for others.
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6bed4 is a tunnel that allows IPv6 connectivity anywhere. Although it can fallback to a server that connects end points, it only does this when direct connections fail. Such failure is hardly a serious expectation, it only occurs as a result of Symmetric NAT. The server is there to give a guarantee even in such exceptional cases. The result of using 6bed4 is that one can assume IPv6 Anywhere. The IPv6 facility needs no configuration, and is suitable for fast and interactive traffic such as interactive media.
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Symmetric TLS is a mechanism that supports the use of TLS without prior decision on which side plays the role of client or server. This would otherwise be needed for TLS only, when transport and application layers are mirrorred. The work modifies the message flow of TLS such that it can negotiate the desired independency; it also works together with classic implementations of TLS that insist on either the client or server role. Symmetric TLS is implemented in GnuTLS.
The p2p Toolkit was funded by SIDN Fonds.